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Class 91/4A - With float mechanism


Subclass of Class 91 - Motors: expansible chamber type
No. of patents: 5
Last issue date: 05/13/2008


NumberTitleIssue Date
7370568Method and apparatus for angularly positioning a shaker separator bed
An apparatus for angularly positioning a shaker bed, including a discharge end, includes an air source providing pressurized air, an hydraulic tank in selective communication with the air source and containing a quantity of fluid, at least one bellow in selective fl...
05/13/2008
7118118Steer wheel control system with dual pistons connected to a common shaft
A steering system control apparatus for resisting off-center movement of the steer wheels of a vehicle and returning them to a selected center position after each such movement. A centering shaft is connected to the steering shaft from a steering gear for rotational...
10/10/2006
5956951Adjustable magneto-rheological fluid device
An adjustable magneto-rheological fluid device includes a movable piston adjacent a first chamber containing a first hydraulic fluid for moving the piston. The first hydraulic fluid interacts with a flexible magneto-rheological compartment containing a ma...
09/28/1999
5802638Adjustable load supporting apparatus
A rest portion is used to support a load at an adjustable height relative to a base which is connected to the rest portion by a pivotal linkage. A hydraulic ram coupled to a gas spring cylinder applies a spring force between the linkage and the base, the ...
09/08/1998
5265421Underwater hydraulic system for reducing liquidborne noise
An hydraulic liquid system wherein a pump moves liquid from one location to another such as in supplying one or more loads in an underwater environment. The system includes two hydro-pneumatic chambers utilized such that one is filled by liquid from the p...
11/30/1993
 
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