IP Library › Granted Patent US 6,866,227
Granted Patent B2
US 6,866,227 · App. 10/462,144 · Granted Mar 15, 2005

Pressure responsive blowout latch with reservoir

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Quick Facts
Patent No.
US 6,866,227
App. No.
10/462,144
Granted
Mar 15, 2005
Kind
B2
Abstract

A method and apparatus for maintaining a panel in a closed position and releasing a panel upon application of changes resulting from a pressure change in an area adjoining the panel. The apparatus includes a latch mechanism attached to a structure having a bolt for engaging corresponding panel. The latch mechanism may be retained on the corresponding panel with the bolt engaging the structure. A pressure responsive device is provided to detect a change in pressure on one side of the panel and facilitating release of the bolt in response to a pressure change of a predetermined range or force. The latch mechanism and pressure responsive device vent to or communicate with only one side of the panel. A reservoir on one side of the panel communicates with a pressure responsive chamber of the pressure responsive device. The reservoir is generally on the same side of the panel to provide a pressure volume which is generally isolated from ambient pressure, such as during a decompression event. The method includes a method of maintaining a latch mechanism in a closed position subject to a pressure change, including sensing the pressure change on only one side of the panel.

Claims (46)

1. A latch mechanism for releasably retaining a first structure relative to a second structure, the latch mechanism comprising:

a housing attachable to at least one of a first structure and a second structure;

a bolt releasably carried on the housing;

a portion of the bolt abutting a portion of the other of a first structure and a second structure for preventing displacement of a first structure from a second structure;

a pressure responsive device for detecting a decrease in pressure on one side of a panel;

a bolt engaging device coupled to the pressure responsive device and moveably displaceable in response to operation of the pressure responsive device; and

a receiving structure on the bolt for mechanically engaging at least a portion of the bolt engaging device to prevent displaceable movement of the bolt prior to operation of the pressure responsive device.

2. The latch mechanism of claim 1 , wherein the bolt is pivotably retained on the housing.

3. The latch mechanism of claim 1 , wherein the pressure responsive device is carried on the housing.

4. The latch mechanism of claim 1 , the pressure responsive device further comprising an air cylinder and a reservoir, the air cylinder having a first side communicating with ambient atmosphere on the side of a panel to which the latch mechanism is attached, and a second side communicating with the reservoir, the first side being exposed to rapid changes in pressure in the ambient atmosphere and the second side being generally isolated from rapid changes in pressure in ambient atmosphere.

5. The latch mechanism of claim 1 , wherein the pressure responsive device includes a pressure responsive diaphragm operatively retained in a pressure responsive chamber, the chamber including a first opening communicating with a first volume and a second opening communicating with a second volume, a pressure differential between the first volume and second volume acting on the pressure responsive diaphragm in the chamber.

6. The latch mechanism of claim 5 , further comprising the pressure of the first volume is defined by ambient atmosphere and the pressure of the second volume is defined by a reservoir communicating with the pressure responsive chamber wherein the reservoir is generally isolated from ambient atmosphere.

7. The latch mechanism of claim 1 , where in the pressure responsive device includes a pneumatic piston, operatively retained in a pressure responsive chamber, the pressure responsive chamber including a first opening communicating with a first volume having a first pressure and a second opening communicating with a second volume having a second pressure, a pressure differential between the first volume and second volume operating the piston in the chamber.

8. The latch mechanism of claim 1 , wherein the pressure responsive device includes an electrical pressure sensing device and a moving device coupled to the electrical pressure sensing device, the electrical pressure sensing device communicating with a first volume having a first pressure and a second volume having a second pressure.

9. The latch mechanism of claim 1 , further comprising a retaining mechanism providing a retaining force to retain the bolt in a latched positioned prior to exceeding a predetermined retaining force.

10. A latch mechanism for releasably retaining a panel relative to a frame, the latch mechanism comprising:

a latch housing attachable to at least one of a panel and a frame;

a bolt pivotably carried on the latch housing;

a portion of the bolt extending from the latch housing for abutting a portion of the other of a panel and a frame to prevent displacement of a panel from a frame;

a slider displaceably carried on the latch housing and operatively connected to the bolt;

a pressure responsive device responsive to at least a decrease in pressure on the side of a panel to which the latch device is attached;

a bolt engaging pin operatively connected to the pressure responsive device, the bolt engaging pin being moveably displaceable in response to operation of the pressure responsive device; and

means for retaining the slider for engaging at least a portion of the bolt engaging pin to retain the slider against displacement prior to operation of the pressure responsive device.

11. The latching device of claim 10 , wherein the pressure responsive device includes means for detecting at least a first pressure and a pressure reservoir defining a second pressure, generally isolated from the first pressure, the pressure responsive device operating in response to a differential between a first pressure and a second pressure.

12. The latch mechanism of claim 10 , wherein the pressure responsive device is carried on the latch housing.

13. The latch mechanism of claim 10 , wherein at least a portion of the pressure responsive device is separate from the housing and communicates with the housing.

14. The latch mechanism of claim 10 , the pressure responsive device further comprising an air cylinder and a reservoir, the air cylinder having a first side communicating with ambient atmosphere on the side of a panel to which the latch mechanism is attached and a second side communicating with the reservoir, the first side being exposed to rapid changes in pressure in ambient atmosphere and the reservoir being generally isolated from rapid changes in pressure in ambient atmosphere.

15. The latch mechanism of claim 10 , where in the pressure responsive device includes a pneumatic piston operatively retained in a piston chamber, the piston chamber including a first opening communicating with a first volume having a first pressure and a second opening communicating with a second volume having a second pressure, a pressure differential between the first volume and second volume operating the piston in the chamber.

16. The latch mechanism of claim 10 , where in the pressure responsive device includes a pressure responsive diaphragm operatively retained in a pressure responsive chamber, the chamber including a first opening communicating with a first volume and a second opening communicating with a second volume, a pressure differential between the first volume and second volume acting on the pressure responsive diaphragm in the chamber.

17. The latch mechanism of claim 10 , wherein the pressure responsive device includes an electrical pressure sensing device and a moving device coupled to the electrical pressure sensing device, the electrical pressure sensing device communicating with a first volume having a first pressure and a second volume having a second pressure.

18. The latch mechanism of claim 10 , further comprising a retaining mechanism providing a retaining force on the bolt.

19. A method for controllably latching a panel relative to a frame, the latching method being responsive to a pressure differential detected on one side of a panel to which a latch mechanism is attached, the method comprising the steps of:

providing a latch mechanism operatively associated with a panel;

providing a bolt releasably carried on the latch mechanism, the bolt being operatively associated with a panel;

providing a pressure responsive device operatively coupled to the bolt, the pressure responsive device communicating with ambient atmosphere;

providing a reservoir communicating with the pressure responsive device, the reservoir being generally isolated from ambient atmosphere;

retaining the bolt in engagement with a panel;

detecting pressure on one side of a panel;

operating the pressure responsive device in response to of a pressure differential between the reservoir and ambient atmosphere;

disengaging the bolt from a panel upon development of a pressure differential of a predetermined degree; and

displacing a panel relative to a frame upon disengagement of the bolt on a panel.

20. A latch mechanism for releasably retaining a panel, the latch mechanism comprising:

a pressure responsive device carried on the housing and communicating with ambient atmosphere;

a reservoir generally isolated from ambient atmosphere and communicating with the pressure responsive device;

a bolt releasably carried on the housing and operatively engaged with the pressure responsive device; and

the pressure responsive device releasing the bolt upon sensing a pressure differential between the ambient atmosphere and the reservoir.

Assignments (15)
RELEASE OF PATENT SECURITY AGREEMENT RECORDED FEBRUARY 19, 2019 AT REEL/FRAME 048365/0499 Recorded Jun 6, 2024
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS TRUSTEE
To: TRANSDIGM INC.; TRANSDIGM GROUP INCORPORATED; AEROSONIC LLC; MOUNTAINTOP TECHNOLOGIES, INC.; AIRBORNE SYSTEMS NORTH AMERICA OF NJ INC.; SHIELD RESTRAINT SYSTEMS, INC.; AMSAFE, INC.; ARKWIN INDUSTRIES, INC.; AVIONIC INSTRUMENTS, INC.; AEROSONIC CORPORATION; AVTECHTYEE, INC.; BREEZE-EASTERN LLC; BRUCE AEROSPACE INC.; CEF INDUSTRIES, LLC; CHAMPION AEROSPACE LLC; DATA DEVICE CORPORATION; DUKES AEROSPACE, INC.; PURE TECHNOLOGIES LTD.; HARCO LABORATORIES, INC.; HARCO LLC; HARCO TECHNOLOGIES CORPORATION; CORRPRO COMPANIES, INC.; HARCO CORPORATION; HARTWELL CORPORATION; MARATHONNORCO AEROSPACE, INC.; PNEUDRAULICS, INC.; SCHNELLER LLC; SEMCO INSTRUMENTS, INC.; TACTAIR FLUID CONTROLS, INC.; TEAC AEROSPACE TECHNOLOGIES, INC.; TELAIR INTERNATIONAL GMBH; TELAIR INTERNATIONAL AB; NORDISK AVIATION PRODUCTS AS; TURNTIME TECHNOLOGIES AB; AEROCONTROLEX GROUP, INC.; TRANSICOIL INC.; SOUTHCO, INC.; WHIPPANY ACTUATION SYSTEMS, LLC; YOUNG & FRANKLIN INC.; ARMTEC COUNTERMEASURES CO.; ADVANCED INPUT DEVICES, INC.; ARMTEC DEFENSE PRODUCTS COMPANY; JOSLYN SUNBANK COMPANY LLC; LEACH INTERNATIONAL CORPORATION; SOURIAU USA, INC.; NMC GROUP, INC.; TA AEROSPACE CO.; MASON ELECTRIC CO.; KORRY ELECTRONICS CO.; PALOMAR PRODUCTS, INC.; ROLLS-ROYCE PLC; MEMTRON TECHNOLOGIES CO.; CHELTON, INC. (N/K/A CHELTON AVIONICS, INC.); SIMPLEX MANUFACTURING CO.; APICAL INDUSTRIES, INC.; AERO-INSTRUMENTS CO., LLC; AIRBORNE SYSTEMS NA, INC.; HARCOSEMCO LLC; HARCO, LLC (N/K/A HARCOSEMCO LLC); PEXCO AEROSPACE, INC.; TELAIR US LLC; CALSPAN AERO SYSTEMS ENGINEERING, INC.; CALSPAN SYSTEMS, LLC; ADAMS RITE AEROSPACE, INC.; ACME AEROSPACE, INC.; SCHNELLER, INC.; CEF INDUSTRIES, INC.
Reel/Frame 067640/0147 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NATURE OF CONVEYANCE PREVIOUSLY RECORDED AT REEL: 064961 FRAME: 0671. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF PATENT AND TRADEMARK SECURITY INTEREST. Recorded Oct 5, 2023
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS PREDECESSOR COLLATERAL AGENT
To: GOLDMAN SACHS BANK USA, AS SUCCESSOR COLLATERAL AGENT
Reel/Frame 065132/0644 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 20, 2023
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS PREDECESSOR COLLATERAL AGENT
To: GOLDMAN SACHS BANK USA, AS SUCCESSOR COLLATERAL AGENT
Reel/Frame 064961/0671 →
RELEASE OF SECURITY INTEREST Recorded Apr 19, 2023
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS TRUSTEE
To: TA AEROSPACE CO.; TRANSDIGM, INC.; TRANSDIGM GROUP INCORPORATED; ACME AEROSPACE, INC.; ADAMS RITE AEROSPACE, INC.; AEROCONTROLEX GROUP, INC.; AEROSONIC CORPORATION; AIRBORNE HOLDINGS, INC.; AIRBORNE SYSTEMS NORTH AMERICA OF NJ INC.; AMSAFE COMMERCIAL PRODUCTS INC.; AMSAFE, INC.; ARKWIN INDUSTRIES, INC.; AVIONIC INSTRUMENTS LLC; AVIONICS SPECIALTIES, INC.; AVTECH TYEE, INC.; BEAM'S INDUSTRIES; BREEZE EASTERN CORPORATION; BRUCE AEROSPACE, INC.; CEF INDUSTRIES, INC.; CHAMPION AEROSPACE LLC; DATA DEVICE CORPORATION; DUKES AEROSPACE, INC.; ELECTROMECH TECHNOLOGIES LLC; HARCO LABORATORIES, INC.; HARCO LLC; HARTWELL CORPORATION; MARATHONNORCO AEROSPACE, INC.; PEXCO AEROSPACE, INC.; PNEUDRAULICS, INC.; SCHNELLER LLC; SEMCO INSTRUMENTS, INC.; SHIELD RESTRAINT SYSTEMS, INC.; TACTAIR FLUID CONTROLS INC.; TEAC AEROSPACE TECHNOLOGIES, INC.; TELAIR INTERNATIONAL LLC; TRANSCOIL LLC; WESTERN SKY INDUSTRIES, LLC; WHIPPANY ACTUATION SYSTEMS, LLC; YOUNG & FRANKLIN INC.; ARMTEC COUNTERMEASURES CO.; ARMTEC DEFENSE PRODUCTS COMPANY; LEACH INTERNATIONAL CORPORATION; NMC GROUP INC.; MASON ELECTRIC CO.; KORRY ELECTRONICS CO.; PALOMAR PRODUCTS, INC.; CHELTON, INC. (N/K/A CHELTON AVIONICS, INC.); SIMPLEX MANUFACTURING CO.; APICAL INDUSTRIES, INC.
Reel/Frame 063363/0753 →
SECURITY INTEREST Recorded Feb 27, 2023
From: TRANSDIGM INC.; TRANSDIGM GROUP INCORPORATED; 17111 WATERVIEW PKWY LLC; ACME AEROSPACE, INC.; ADAMS RITE AEROSPACE, INC.; AEROCONTROLEX GROUP, INC.; AEROSONIC LLC; AIRBORNE ACQUISITION, INC.; AIRBORNE GLOBAL, INC.; AIRBORNE HOLDINGS, INC.; AIRBORNE SYSTEMS NA INC.; AIRBORNE SYSTEMS NORTH AMERICA INC.; AIRBORNE SYSTEMS NORTH AMERICA OF CA INC.; AMSAFE GLOBAL HOLDINGS, INC.; AMSAFE, INC.; ANGUS ELECTRONICS CO.; APICAL INDUSTRIES, INC.; ARKWIN INDUSTRIES, INC.; ARMTEC COUNTERMEASURES CO.; ARMTEC COUNTERMEASURES TNO CO.; ARMTEC DEFENSE PRODUCTS CO.; AUXITROL WESTON USA, INC.; AVIATION TECHNOLOGIES, INC.; AVIONIC INSTRUMENTS LLC; AVIONICS SPECIALTIES, INC.; AVTECHTYEE, INC.; BETA TRANSFORMER TECHNOLOGY LLC; BREEZE-EASTERN LLC; BRIDPORT HOLDINGS, INC.; BRIDPORT-AIR CARRIER, INC.; BRUCE AEROSPACE INC.; CDA INTERCORP LLC; CEF INDUSTRIES, LLC; CENTURY HELICOPTERS, INC.; CHAMPION AEROSPACE LLC; CHELTON AVIONICS HOLDINGS, INC.; CHELTON AVIONICS, INC.; CHELTON DEFENSE PRODUCTS, INC.; CMC ELECTRONICS AURORA LLC; DART AEROSPACE USA, INC.; DART BUYER, INC.; DART HELICOPTER SERVICES, INC.; DART INTERMEDIATE, INC.; DART TOPCO, INC.; DATA DEVICE CORPORATION; DUKES AEROSPACE, INC.; ELECTROMECH TECHNOLOGIES LLC; ESTERLINE EUROPE COMPANY LLC; ESTERLINE INTERNATIONAL COMPANY; ESTERLINE TECHNOLOGIES CORPORATION; ESTERLINE TECHNOLOGIES SGIP LLC; HARCOSEMCO LLC; HARTWELL CORPORATION; HELI TECH, INC.; HYTEK FINISHES CO.; ILC HOLDINGS, INC.; JANCO CORPORATION; JOHNSON LIVERPOOL LLC; KIRKHILL INC.; KORRY ELECTRONICS CO.; LEACH HOLDING CORPORATION; LEACH INTERNATIONAL CORPORATION; LEACH MEXICO HOLDING LLC; LEACH TECHNOLOGY GROUP, INC.; MARATHONNORCO AEROSPACE, INC.; MASON ELECTRIC CO.; MCKECHNIE AEROSPACE DE, INC.; MCKECHNIE AEROSPACE HOLDINGS, INC.; MCKECHNIE AEROSPACE US LLC; NAT SEATTLE INC.; NMC GROUP, INC.; NORDISK AVIATION PRODUCTS LLC; NORTH HILLS SIGNAL PROCESSING CORP.; NORTH HILLS SIGNAL PROCESSING OVERSEAS LLC; NORWICH AERO PRODUCTS, INC.; OFFSHORE HELICOPTER SUPPORT SERVICES, INC.; PALOMAR PRODUCTS, INC.; PARAVION TECHNOLOGY, INC.; PEXCO AEROSPACE, INC.; PNEUDRAULICS, INC.; POWER DEVICE CORPORATION; SCHNELLER LLC; SEMCO INSTRUMENTS, INC.; SHIELD RESTRAINT SYSTEMS, INC.; SIMPLEX MANUFACTURING CO.; SKANDIA, INC.; SKURKA AEROSPACE INC.; SYMETRICS INDUSTRIES, LLC; TA AEROSPACE CO.; TACTAIR FLUID CONTROLS, INC.; TDG ESL HOLDINGS INC.; TEAC AEROSPACE TECHNOLOGIES, INC.; TELAIR US LLC; TEXAS ROTRONICS, INC.; TRANSICOIL LLC; WHIPPANY ACTUATION SYSTEMS, LLC; YOUNG & FRANKLIN INC.; AIRBORNE SYSTEMS NORTH AMERICA OF NJ INC.; BRIDPORT ERIE AVIATION, INC.; TRANSDIGM UK HOLDINGS PLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS TRUSTEE
Reel/Frame 063012/0788 →
PATENT SECURITY AGREEMENT Recorded Apr 9, 2020
From: AIRBORNE SYSTEMS NORTH AMERICA OF NJ INC.; ACME AEROSPACE, INC.; ADAMS RITE AEROSPACE, INC.; AEROCONTROLEX GROUP, INC.; AEROSONIC CORPORATION/LLC; AIRBORNE HOLDINGS, INC.; AMSAFE COMMERCIAL PRODUCTS INC.; AMSAFE, INC.; ARKWIN INDUSTRIES, INC.; AVIONIC INSTRUMENTS LLC; AVIONICS SPECIALTIES, INC.; AVTECHTYEE, INC.; BEAM’S INDUSTRIES; BREEZE-EASTERN CORPORATION; BRUCE AEROSPACE, INC.; CEF INDUSTRIES, INC.; CHAMPION AEROSPACE LLC; DATA DEVICE CORPORATION; DUKES AEROSPACE, INC.; ELECTROMECH TECHNOLOGIES LLC; HARCO LABORATORIES, INCORPORATED; HARCO LLC; HARTWELL CORPORATION; MARATHONNORCO AEROSPACE, INC.; PEXCO AEROSPACE, INC.; PNEUDRAULICS, INC.; SCHNELLER LLC; SEMCO INSTRUMENTS, INC.; SHIELD RESTRAINT SYSTEMS, INC.; TACTAIR FLUID CONTROLS, INC.; TEAC AEROSPACE TECHNOLOGIES, INC.; TELAIR INTERNATIONAL LLC; TRANSDIGM, INC.; TRANSCOIL LLC; WESTERN SKY INDUSTRIES, LLC; WHIPPANY ACTUATION SYSTEMS, LLC; YOUNG & FRANKLIN INC.; ARMTEC COUNTERMEASURES CO.; ARMTEC DEFENSE PRODUCTS COMPANY; ARMTEC DEFENSE PRODUCTS CO.; LEACH INTERNATIONAL CORPORATION; NMC GROUP, INC.; TA AEROSPACE CO.; MASON ELECTRIC COMPANY; KORRY ELECTRONICS CO.; PALOMAR PRODUCTS, INC.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS TRUSTEE AND NOTES COLLATERAL AGENT
Reel/Frame 052352/0704 →
SECURITY INTEREST Recorded Feb 19, 2019
From: TRANSDIGM, INC.; ADAMS RITE AEROSPACE, INC.; AEROCONTROLEX GROUP, INC.; AEROSONIC LLC (F/K/A AEROSONIC CORPORATION); AIRBORNE HOLDINGS, INC.; AIRBORNE SYSTEMS OF NORTH AMERICA OF NJ INC.; AMSAFE, INC.; ARKWIN INDUSTRIES, INC.; AVIONIC INSTRUMENTS LLC; AVIONICS SPECIALTIES, INC.; AVTECHTYEE, INC.; BREEZE-EASTERN LLC (F/K/A BREEZE-EASTERN CORPORATION); BRUCE AEROSPACE, INC.; CEF INDUSTRIES, LLC (F/K/A CEF INDUSTRIES, INC.); CHAMPION AEROSPACE LLC; DATA DEVICE CORPORATION; DUKES AEROSPACE, INC.; ELECTROMECH TECHNOLOGIES LLC (F/K/A WESTERN SKY, INDUSTRIES, LLC); HARCOSEMCO LLC (F/K/A HARCO LABORATORIES, INCORPORATED) (F/K/A HARCO LLC); HARTWELL CORPORATION; MARATHONNORCO AEROSPACE, INC.; PEXCO AEROSPACE, INC.; PNEUDRAULICS, INC.; SCHNELLER LLC; SEMCO INSTRUMENTS, INC.; SHIELD RESTRAINT SYSTEMS, INC. (F/K/A AMSAFE COMMERCIAL PRODUCTS INC.) (F/K/A BEAM'S INDUSTRIES, INC.); TACTAIR FLUID CONTROLS, INC.; TEAC AEROSPACE TECHNOLOGIES, INC.; TELAIR INTERNATIONAL LLC; TRANSICOIL LLC; WHIPPANY ACTUATION SYSTEMS, LLC; YOUNG & FRANKLIN INC.; ACME AEROSPACE, INC.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,
Reel/Frame 048365/0499 →
SECURITY AGREEMENT Recorded Feb 16, 2011
From: TRANSDIGM INC.; TRANSDIGM GROUP INCORPORATED; HARTWELL CORPORATION; TYEE AIRCRAFT; WESTERN SKY INDUSTRIES, LLC, A.K.A. TYEE AIRCRAFT; AEROCONTROLEX GROUP, INC.; ADAMS RITE AEROSPACE, INC.; CHAMPION AEROSPACE LLC; MARATHONNORCO AEROSPACE, INC.; BRUCE AEROSPACE INC.; ACME AEROSPACE, INC.
To: CREDIT SUISSE AG, AS ADMINISTRATIVE AND COLLATERAL AGENT
Reel/Frame 025810/0177 →
SECURITY AGREEMENT Recorded Dec 22, 2010
From: TRANSDIGM INC.; TRANSDIGM GROUP INCORPORATED; AEROCONTROLEX GROUP, INC.; ADAMS RITE AEROSPACE, INC.; MARATHONNORCO AEROSPACE, INC.; HARTWELL CORPORATION; WESTERN SKY INDUSTRIES, LLC, A.K.A. TYEE AIRCRAFT
To: CREDIT SUISSE AG, AS ADMINISTRATIVE AND COLLATERAL AGENT
Reel/Frame 025525/0054 →
SECOND LIEN PATENT SECURITY RELEASE Recorded Dec 21, 2010
From: JPMORGAN CHASE BANK, N.A. (AS SUCCESSOR IN INTEREST TO BEAR STEARNS CORPORATE LENDING INC.), AS ADMINISTRATIVE AGENT
To: HARTWELL CORPORATION; WESTERN SKY INDUSTRIES, LLC A.K.A. TYEE AIRCRAFT
Reel/Frame 025528/0942 →
FIRST LIEN PATENT SECURITY RELEASE Recorded Dec 21, 2010
From: JPMORGAN CHASE BANK, N.A. (AS SUCCESSOR IN INTEREST TO BEAR STEARNS CORPORATE LENDING INC.), AS ADMINISTRATIVE AGENT
To: HARTWELL CORPORATION; WESTERN SKY INDUSTRIES, LLC A.K.A. TYEE AIRCRAFT
Reel/Frame 025528/0932 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded Jul 20, 2007
From: HARTWELL CORPORATION
To: BEAR STEARNS CORPORATE LENDING INC., AS ADMINISTRATIVE AGENT
Reel/Frame 019580/0578 →
FIRST LIEN PATENT SECURITY AGREEMENT Recorded May 15, 2007
From: HARTWELL CORPORATION
To: BEAR STEARNS CORPORATE LENDING INC.
Reel/Frame 019287/0587 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2004
From: PRATT, JOHN D.; ROZEMA, TIMOTHY S.
To: HARTWELL CORPORATION
Reel/Frame 014241/0189 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2003
From: PRATT, JOHN D.; ROZEMA, TIMOTHY S.
To: HARTWELL CORPORATION
Reel/Frame 014183/0355 →