IP Library › Granted Patent US 7,021,442
Granted Patent B2
US 7,021,442 · App. 10/801,790 · Granted Apr 4, 2006

One-way torque transmitter with a friction actuating apparatus

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Quick Facts
Patent No.
US 7,021,442
App. No.
10/801,790
Granted
Apr 4, 2006
Kind
B2
Abstract

A torque-to-thrust apparatus includes a one-way mechanism permitting free application of rotation to torque. A friction plate disposed between a portion of a one-way device and a stationary member of the torque-to-thrust apparatus inhibits reverse rotation at a predetermined torque level, which will maintain the thrust member of the torque-to-thrust apparatus in an engaged condition until a predetermined load is applied to the rotary side of the torque-to-thrust apparatus to overcome the friction load.

Claims (21)

1. A torque-to-thrust apparatus including a one-way friction torque-transmitting mechanism comprising:

a rotary input member operable in a forward and reverse direction;

a linear output member;

torque-to-thrust means disposed between said rotary input member and said linear output member for transmitting rotary motion of said input member to linear motion of said output member;

a stationary component;

a one-way torque-transmitting mechanism disposed adjacent said stationary component and being responsive to said rotary input member to permit free rotation in a first direction;

a friction means disposed between said stationary component and a member of said one-way torque-transmitting mechanism to hold said one-way torque-transmitting mechanism member stationary to inhibit the reverse rotation of said rotary input member in a second direction until a predetermined rotary force is present at said rotary input member in said second direction.

2. The torque-to-thrust apparatus including a one-way friction torque-transmitting mechanism defined in claim 1 further comprising:

said one-way torque-transmitting mechanism having an inner race and an outer race; and

said friction means comprising a plate member disposed between said outer race and said stationary component.

3. The torque-to-thrust apparatus including a one-way friction torque-transmitting mechanism defined in claim 1 further comprising:

said one-way torque-transmitting mechanism having an inner race and an outer race;

said friction means comprising a plate member disposed between said inner race and said stationary component.

4. The torque-to-thrust apparatus including a one-way friction torque-transmitting mechanism defined in claim 1 further comprising:

said friction means comprising a plate member secured to said stationary component adjacent said member of said one-way torque-transmitting mechanism.

5. The torque-to-thrust apparatus including a one-way friction torque-transmitting mechanism defined in claim 1 further comprising:

said torque to thrust means comprising a hydraulic force generating means including a master cylinder and a slave cylinder.

6. The torque-to-thrust apparatus including a one-way friction torque-transmitting mechanism defined in claim 1 further comprising

said friction means having a holding force proportional to a thrust force in said torque to thrust means.

7. The torque-to-thrust apparatus including a one-way friction torque-transmitting mechanism defined in claim 1 further comprising:

said friction means having a substantially constant holding force.

Assignments (13)
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2014
From: WILMINGTON TRUST COMPANY
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 034371/0676 →
CHANGE OF NAME Recorded Feb 10, 2011
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 025780/0902 →
SECURITY AGREEMENT Recorded Nov 8, 2010
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: WILMINGTON TRUST COMPANY
Reel/Frame 025327/0262 →
RELEASE OF SECURITY INTEREST Recorded Nov 4, 2010
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025245/0442 →
RELEASE OF SECURITY INTEREST Recorded Nov 4, 2010
From: UAW RETIREE MEDICAL BENEFITS TRUST
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025311/0770 →
SECURITY AGREEMENT Recorded Aug 28, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UAW RETIREE MEDICAL BENEFITS TRUST
Reel/Frame 023162/0001 →
SECURITY AGREEMENT Recorded Aug 27, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 023156/0052 →
RELEASE OF SECURITY INTEREST Recorded Aug 21, 2009
From: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023127/0468 →
RELEASE OF SECURITY INTEREST Recorded Aug 20, 2009
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023124/0429 →
SECURITY AGREEMENT Recorded Apr 16, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
Reel/Frame 022553/0446 →
SECURITY AGREEMENT Recorded Feb 4, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 022201/0610 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 14, 2009
From: GENERAL MOTORS CORPORATION
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 022117/0022 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 25, 2004
From: BORGERSON, JAMES B.; STEVENSON, PAUL D.
To: GENERAL MOTORS CORPORATION
Reel/Frame 014778/0559 →