IP Library › Granted Patent US 7,938,297
Granted Patent B2
US 7,938,297 · App. 12/629,449 · Granted May 10, 2011

Pump dispensers

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Quick Facts
Patent No.
US 7,938,297
App. No.
12/629,449
Granted
May 10, 2011
Kind
B2
Abstract

Certain pump dispensers, for example foam dispensers, are specially adapted for inverted use. One feature especially useful in a foam dispenser having both an air cylinder and a liquid cylinder with respective pistons is an intake conduit arrangement to increase the clearance of liquid from the container. An intermediate shell fits over the upright liquid cylinder body and carries an inlet valve positively urged upward to the closed position to prevent leaking. A conduit shell fits over the intermediate shell and creates an intake conduit extending down the side of the liquid cylinder to an intake opening lower down the pump body.

Claims (29)

1. An apparatus, comprising:

an inverted foaming dispenser for dispensing foam, the dispenser including

a liquid cylinder in which liquid is pumped to form the foam,

an air cylinder in which air is pumped to form the foam, the air cylinder having a trough surrounding the liquid cylinder where the liquid cylinder extends from the air cylinder,

the liquid cylinder having an inlet opening at an end opposite the air cylinder for drawing the liquid into the liquid cylinder, and

a conduit shell received around the liquid cylinder to define an intake conduit, the conduit shell extending along the liquid cylinder from the inlet opening to the trough for drawing the liquid from the trough to the inlet opening via the intake conduit.

2. The apparatus of claim 1 , in which the conduit shell has an outwardly flared portion that flares outwardly from the conduit shell.

3. The apparatus of claim 2 , in which the outwardly flared portion includes a radial surface that is flattened.

4. The apparatus of claim 3 , further comprising:

the trough having a snap bead; and

the outwardly flared portion having a snap ring engaged to the snap bead.

5. The apparatus of claim 4 , in which the radial surface has one or more through-openings.

6. The apparatus of claim 2 , further comprising:

the trough having a snap bead; and

the outwardly flared portion having a snap ring engaged to the snap bead.

7. The apparatus of claim 2 , further comprising:

the trough having a snap bead; and

the conduit shell having a snap ring engaged to the snap bead.

8. The apparatus of claim 1 , further comprising:

the conduit shell including a radial surface that is flattened at the trough.

9. The apparatus of claim 8 , in which one or more through-openings facilitate entry of the liquid into the trough.

10. The apparatus of claim 8 , in which the conduit shell has an outwardly projecting channel with an intake channel, the intake channel extending along the liquid cylinder and through the radial surface that is flattened at the trough to draw the liquid from the trough to the inlet opening.

11. The apparatus of claim 1 , in which the conduit shell has an outwardly projecting channel with an intake channel to draw the liquid from the trough to the inlet opening.

12. The apparatus of claim 1 , further comprising:

an intermediate shell disposed between the conduit shell and the liquid cylinder.

13. The apparatus of claim 12 , in which the intermediate shell includes an umbrella valve.

14. The apparatus of claim 1 , further comprising:

the air cylinder including an air piston to pump the air; and

the liquid cylinder including a liquid piston to pump the liquid.

Assignments (8)
CHANGE OF NAME Recorded Feb 12, 2020
From: RIEKE CORPORATION
To: RIEKE LLC
Reel/Frame 051903/0373 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (024120/0535) Recorded Jul 16, 2015
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS SECOND LIEN AGENT
To: CEQUENT CONSUMER PRODUCTS, INC.
Reel/Frame 036125/0710 →
SECURITY INTEREST Recorded Jul 2, 2015
From: TRIMAS CORPORATION; TRIMAS COMPANY LLC; ARMINAK & ASSOCIATES, LLC; ARROW ENGINE COMPANY; INNOVATIVE MOLDING; LAMONS GASKET COMPANY; MONOGRAM AEROSPACE FASTENERS, INC.; RIEKE CORPORATION
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 036051/0483 →
RELEASE OF SECURITY INTEREST Recorded Nov 13, 2012
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
To: TRIMAS CORPORATION
Reel/Frame 029291/0265 →
RELEASE OF SECURITY INTEREST Recorded Aug 5, 2011
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: TRIMAS CORPORATION; ARROW ENGINE COMPANY; BEAUMONT BOLT & GASKET, INC.; CEQUENT CONSUMER PRODUCTS, INC.; CEQUENT PERFORMANCE PRODUCTS, INC.; CEQUENT TOWING PRODUCTS, INC.; COMPAC CORPORATION; CONSUMER PRODUCTS, INC.; CUYAM CORPORATION; DEW TECHNOLOGIES, INC.; DI-RITE COMPANY; ENTEGRA FASTENER CORPORATION; FULTON PERFORMANCE PRODUCTS, INC.; HAMMERBLOW ACQUISITION CORP.; THE HAMMERBLOW COMPANY, LLC; HI-VOL PRODUCTS LLC; INDUSTRIAL BOLT & GASKET, INC.; KEO CUTTERS, INC.; LAKE ERIE PRODUCTS CORPORATION; LAMONS GASKET COMPANY; LAMONS METAL GASKET CO.; LOUISIANA HOSE & RUBBER CO.; MONOGRAM AEROSPACE FASTENERS, INC.; NETCONG INVESTMENTS, INC.; NI INDUSTRIES, INC.; NI WEST, INC.; NORRIS CYLINDER COMPANY; NORRIS ENVIRONMENTAL SERVICES, INC.; NORRIS INDUSTRIES, INC.; PLASTIC FORM, INC.; REESE PRODUCTS, INC.; RESKA SPLINE PRODUCTS, INC.; RIEKE CORPORATION; RIEKE OF INDIANA, INC.; RIEKE LEASING CO., INCORPORATED; RIEKE OF MEXICO, INC.; TOWING HOLDING LLC; TRIMAS COMPANY LLC; TRIMAS INTERNATIONAL HOLDINGS LLC; WESBAR CORPORATION; DRAW-TITE, INC.; RICHARDS MICRO-TOOL, INC.
Reel/Frame 026706/0434 →
SECURITY AGREEMENT Recorded May 4, 2010
From: TRIMAS COMPANY, LLC FKA K.S. DISPOSITION, INC; TRIMAS COMPANY LLC; TRIMAS CORPORATION; ARROW ENGINE COMPANY; BEAUMONT BOLT & GASKET, INC.; TRIMAS COMPANY LLC FKA COMMONWEALTH DISPOSITION, LLC; COMPAC CORPORATION; CONSUMER PRODUCTS, INC.; CUYAM CORPORATION; DI-RITE COMPANY; DRAW-TITE, INC.; ENTEGRA FASTENER CORPORATION; FULTON PERFORMANCE PRODUCTS, INC.; CEQUENT TOWING PRODUCTS, INC. FKA HITCH 'N POST, INC.; INDUSTRIAL BOLT & GASKET, INC.; KEO CUTTERS, INC.; LAKE ERIE SCREW CORPORATION; LAMONS METAL GASKET CO.; LOUISIANA HOSE & RUBBER CO.; MONOGRAM AEROSPACE FASTENERS, INC.; NETCONG INVESTMENTS, INC.; TRIMAS COMPANY LLC FKA NI FOREIGN MILITARY SALES CORP.; NI INDUSTRIES, INC.; NI WEST, INC.; NORRIS CYLINDER COMPANY; NORRIS ENVIRONMENTAL SERVICES, INC.; NORRIS INDUSTRIES, INC.; PLASTIC FORM, INC.; REESE PRODUCTS, INC.; RESKA SPLINE PRODUCTS, INC.; RICHARDS MICRO-TOOL, INC.; RIEKE CORPORATION; RIEKE OF INDIANA, INC.; RIEKE OF MEXICO; RIEKE LEASING CO.; TRIMAS COMPANY, LLC FKA TRIMAS FASTENERS, INC.; TRIMAS COMPANY, LLC FKA TRIMAS SERVICES CORP.; WESBAR CORPORATION
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 024390/0471 →
SECURITY AGREEMENT Recorded Mar 23, 2010
From: TRIMAS CORPORATION; TRIMAS COMPANY LLC; ARROW ENGINE COMPANY; CEQUENT PERFORMANCE PRODUCTS, INC.; CEQUENT CONSUMER PRODUCTS, INC.; COMPAC CORPORATION; DEW TECHNOLOGIES, INC.; HI-VOL PRODUCTS LLC; KEO CUTTERS, INC.; LAKE ERIE PRODUCTS CORPORATION; MONOGRAM AEROSPACE FASTENERS, INC; NI INDUSTRIES, INC.; NORRIS CYLINDER COMPANY; RICHARDS MICRO-TOOL, INC.; RIEKE CORPORATION; RIEKE LEASING CO.; RIEKE OF MEXICO, INC.; THE HAMMERBLOW COMPANY, LLC; TRIMAS INTERNATIONAL HOLDINGS LLC; LAMONS GASKET COMPANY; TOWING HOLDING LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS SECOND LIEN AGENT
Reel/Frame 024120/0535 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2009
From: LAW, BRIAN ROBERT; PRITCHETT, DAVID JOHN; SPENCER, JEFFREY WILLIAM
To: RIEKE CORPORATION
Reel/Frame 023597/0988 →