IP Library Granted Patent US 8,684,367
Granted Patent B2
US 8,684,367 · App. 13/761,555 · Granted Apr 1, 2014

Methods and apparatus for suspension lock out and signal generation

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Quick Facts
Patent No.
US 8,684,367
App. No.
13/761,555
Granted
Apr 1, 2014
Kind
B2
Abstract

Methods and apparatus for regulating the function of a suspension system are disclosed herein. Suspension characteristics often contribute to the efficiency of a suspended system. Depending on the desired operating parameters of the suspended system, it may be desirable to alter the functional characteristics of the suspension from time to time in order to maintain or increase efficiency. The suspension hereof may be selectively locked into a substantially rigid configuration, and the damping fluid may be phase separated and/or cooled to increase damping rate during use (or offset rate degradation). The suspension hereof may generate power usable to achieve any or all of the foregoing or to be stored for use elsewhere in the suspended system or beyond.

Claims (27)

1. A vehicle suspension comprising:

a first support member;

a second support member, the first and second support members movable relative to one another and including a damper having a damping fluid therein between the first and second members;

a damping adjuster that alters a damping rate of the damping fluid in response to a change in a characteristic of the damping fluid; and

a power generating assembly comprising:

a sensor that senses the change in the characteristic of the damping fluid caused by the relative movement between the first support member and the second support member, generates electrical power in response to the change, and transmits the generated electrical power to a processor.

2. The vehicle suspension of claim 1 , wherein the first support member comprises a piston rod and the second support member comprises a cylinder.

3. The vehicle suspension of claim 1 , wherein the first and second support members are movable relative to one another along a substantially common axis, the vehicle suspension further comprising:

a gripping member operationally interposed between the first and the second support members and configured to selectively immobilize the first and second support members relatively along the substantially common axis.

4. The vehicle suspension of claim 1 , wherein the sensor comprises:

at least one of a motor winding and a magnet.

5. The vehicle suspension of claim 1 , wherein the sensor comprises:

a piezoelectric structure.

6. The vehicle suspension of claim 1 , wherein the sensor comprises:

a thermo-electric generator.

7. The vehicle suspension of claim 1 , wherein the sensor comprises:

at least two of a thermo-electric generator, a piezoelectric structure, and a motor winding in conjunction with a magnet.

8. The vehicle suspension of claim 1 , wherein the sensor comprises:

at least one of a bimetallic structure, a shape memory structure, a thermo-electric generator, a piezoelectric generator, and a motor winding in conjunction with a magnet.

9. The vehicle suspension of claim 1 , wherein the characteristic comprises:

at least one of pressure and heat.

10. The vehicle suspension of claim 1 , wherein the damping adjuster comprises:

at least one of a valve member and a thermo-electric generator.

11. The vehicle suspension of claim 1 , wherein the damping fluid comprises:

liquid.

12. The vehicle suspension of claim 1 , wherein the damping fluid comprises:

gas.

Assignments (7)
SECURITY INTEREST Recorded Oct 27, 2025
From: FOX FACTORY, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 073270/0027 →
RELEASE OF SECURITY INTEREST Recorded Apr 13, 2022
From: BANK OF AMERICA, N.A.
To: FOX FACTORY, INC.
Reel/Frame 059704/0224 →
SECURITY INTEREST Recorded Apr 5, 2022
From: FOX FACTORY, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 059616/0435 →
PATENT SECURITY AGREEMENT Recorded Jun 5, 2019
From: FOX FACTORY, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 049388/0585 →
RELEASE OF PATENT SECURITY INTEREST Recorded Jun 4, 2019
From: SUNTRUST BANK, AS ADMINISTRATIVE AGENT
To: FOX FACTORY, INC.
Reel/Frame 049371/0573 →
SECURITY AGREEMENT Recorded Aug 15, 2013
From: FOX FACTORY, INC.
To: SUNTRUST BANK, AS ADMINISTRATIVE AGENT
Reel/Frame 031015/0255 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 12, 2013
From: HAUGEN, DAVID M.
To: FOX FACTORY, INC.
Reel/Frame 030790/0469 →