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Class 137/531 - Varying effective lever arm


Subclass of Class 137 - Fluid handling
Definition: Valves in which the bias is applied through a lever the
No. of patents: 9
Last issue date: 05/13/2008


NumberTitleIssue Date
7370670Bleed valve system for motorcycle suspensions
A pressure relief valve for use on a dampener of a motorcycle suspension system is disclosed. The pressure relief valve includes a hollow body having an aperture that extends through the body, a valve cap that includes a recessed area with an entrance of a first dia...
05/13/2008
7231939Bleed valve system for motorcycle suspensions
A pressure relief valve for use on a dampener of a motorcycle suspension system is disclosed. The pressure relief valve includes a hollow body having an aperture that extends through the body, a valve cap that includes a recessed area with an entrance of a first dia...
06/19/2007
6391019Valve apparatus and valve system using thereof
A valve apparatus of a valve system includes a long-sized elastic member a base end portion of which is fixed and a front end portion of which is brought into contact with a valve element and a movable member capable of moving in B1 and B2 directions actu...
05/21/2002
6227239Spring-loaded safety valve
An automatically resetting safety valve for a generator circuit breaker is to open rapidly and wide, even if the pressure applied to a valve-closing body (1) does not increase substantially over a valve stroke (a) or even falls. In order to ensure this, a...
05/08/2001
5205311Compound lever controlled spill valve
A spill valve assembly is mounted to a flanged opening atop a liquid cargo tank of a barge. A valve disk normally closing an aperture in the assembly is maintained closed by a combination of pivoting lever arms. A self-centering post assembly atop the val...
04/27/1993
5046525Differential loading fluid check valve
A differential loading fluid check valve, including a unitized valve body having a single service port in its sidewall for selective access to the interior chamber of the check valve. Check valve subassemblies are installed and removed through the service...
09/10/1991
4687022Pressure relief valve and regulator
A pressure relief valve and regulator in which the valve chamber has a side port for connecting to the pressure line to be monitored. The valve seat opens to an exhaust and has a diameter slightly larger than the chamber diameter. The valve incorporates a...
08/18/1987
4384576Ventilator apparatus
A portable positive displacement respirator/ventilator is provided for both a pressure sigh and a volume sigh of predetermined duration and frequency by providing a variable length crank arm connecting a piston through a connecting rod by mounting the con...
05/24/1983
4201242Pressure relief valve
There is disclosed a pressure relief valve having a part which is movable to a first position for returning the closure member thereof to closed position, and thus resetting the valve, automatically in response to a predetermined low pressure level of flu...
05/06/1980
 
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