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Class 138/31 - Piston or plunger type


Subclass of Class 138 - Pipes and tubular conduits
Definition: Devices in which the chamber is of variable capacity by
No. of applications: 45
Last issue date: 05/03/2012


  2  
Application No.Application TitleIssue Date
20050155658Hermetically sealed pressure balanced accumulator
A hermetically sealed pressure-balanced accumulator includes a housing and a moveable divider mechanism for separating the housing into at least an accumulator chamber at a pre-selected accumulator pressure. A first balancing chamber is responsive to changes in ambient ...
07/21/2005
20050061379Vehicular brake system component
A vehicular brake system component is used in a brake system of a vehicle. The brake system component includes a sealable bonded component having a metal member and an elastic rubber member bonded to each other and located so as to touch a brake fluid. ...
03/24/2005
20050034953PINLESS ACCUMULATOR PISTON
A replacement accumulator piston for various General Motors transmissions, which absorbs clutch apply fluid pressure to cushion the application of a clutch band against fluid shock is disclosed. The present pinless accumulator piston design eliminates the accumulator pi...
02/17/2005
20050022996Temperature compensation of deepwater accumulators
The method of providing an accumulator for the storage of pressurized liquids by the use of a pressurized gas, comprising providing for the storage of said pressurized gas, providing for the storage of said pressurized liquids which are pressurized by said pressurized g...
02/03/2005
20050011565Variable volume reservoir
A hydraulic fluid reservoir (10, 10′, 10″, 10′″) comprises a body 12, 12′, 12″ 12′″) defining a variable volume chamber having one end portion movable with the level of fluid in the chamber. A biasing member (18, 18′, 18″, 18′â...
01/20/2005
  2  
 
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