U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5285430

Behavior Modification Wristwatch

A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 303/60 - Maintaining


Subclass of Class 303 - Fluid-pressure and analogous brake systems
Definition: Charging devices adapted to cut off the flow of fluid when
No. of patents: 16
Last issue date: 01/27/2004


NumberTitleIssue Date
6682459Electronic air charge controller for vehicular compressed air system
An electronic air charge controller for a tractor trailer vehicle air brake system includes a micro controller, a first pressure sensor interface coupled to the micro controller, a second pressure sensor interface coupled to the micro controller, and a ve...
01/27/2004
6540308Electronic compressed-air processing system
A compressed-air processing system, notably for motor vehicles, includes, in a housing, an electromagnetic pressure regulator and a multicircuit safety valve having at least one load circuit connected to it. Each load circuit can be locked separately by a...
04/01/2003
5844111Method for purifying an inert gas while preparing lower alkyl esters
A process for purifying an inert gas stream from a transesterification reaction wherein a lower alkyl alcohol is released during the reaction is claimed. A second use of the process is to make a lower alkyl, e.g., methyl, esters of fatty acids through a t...
12/01/1998
5695258Railway manual brake control valve test unit
A portable, single-car test unit for a railway freight brake control valve for manually executing pressure manipulations to evaluate the operating conditions of the control valve. The pipe bracket portion is connected to a brake pipe, an auxiliary reservo...
12/09/1997
5678900Unloader for a source of air under pressure on vehicles
A compressed air unloader for unloading compressed air used in the compressed air braking and suspension circuits of a motor vehicle is disclosed. The unloader includes a housing with an internal air chamber, an air inlet for passing compressed air into t...
10/21/1997
5509727Ralway automatic brake control valve test unit
A portable, microprocessor controlled single-car test unit for a railway freight brake control valve for automatically executing pressure manipulations to evaluate the operating conditions of the control valve. The pipe bracket portion is connected to a b...
04/23/1996
5335978Service brake inspection system
A service brake inspection system engages service brake air lines downstream of a foot operated activation valve thereof to provide continuous engagement of the service brakes during inspection. The system includes a manually controlled air line which sup...
08/09/1994
5226692Fluid pressure braking system
A limited service application of the service brakes of the trailer portion of a tractor trailer combination vehicle is applied and held while the vehicle operator gets out of the cab to make a pre-trip inspection. The service actuation is initiated by rel...
07/13/1993
4838619Hydraulic brake system for automotive vehicles
A brake system for automotive vehicles, comprising a tandem master cylinder (1) and a vacuum brake force booster (2). A pump (34) is connected to the supply chambers (10, 11) of the tandem master cylinder (1), which pump is actuated by an electromotor (35...
06/13/1989
4799741Parking brake system for railway vehicles
A fluid brake system has a brake pipe, a control valve device, a brake cylinder and a brake rigging, and in addition, a handbrake pipe, a protective device, a fluid pressure releaseable spring handbrake cylinder, and a manually operable handbrake device f...
01/24/1989
4798421Plunger system for modulating a brake pressure
A plunger system in a brake line between a master brake cylinder and a wheel brake cylinder of a vehicle, for modulating a brake pressure in the event of a sensor-detected danger of wheel locking or wheel spinning. The plunger system has a plunger that is...
01/17/1989
4586755Railway brake control system arranged to limit maximum brake pressure during combined independent and automatic brake operation
A brake control system for a railway vehicle having separately operated independent and automatic brake controls for controlling brake pressure via a double check valve and a multi-piston relay valve, wherein an adjustable regulating valve is set to exhau...
05/06/1986
4530544Pressure proportioning valves
In an air pressure proportioning variable load valve for a vehicle compressed air braking system the operating mechanism for a self-lapping valve assembly includes a fluid pressure responsive piston arrangement which is operable above a given fluid pressu...
07/23/1985
4493511Combined BC pressure-maintaining valve and quick service bulb exhaust valve
This invention relates to a valve assembly for a railway braking system, including a brake cylinder pressure-maintaining valve which, during brake application, takes air from the brake pipe and feeds it into the brake cylinder until it reaches minimum bra...
01/15/1985
4188071Railway vehicle brake apparatus arranged to accommodate reduced emergency reservoir volume
A railway vehicle brake apparatus including a brake control valve device having a service piston valve device operative responsive to a reduction of pressure in the train brake pipe to connect fluid pressure from the auxiliary reservoir to a brake cylinde...
02/12/1980
4057298Safety valve device for multiple circuit fluid pressure operable brake system
A safety valve device for use in a multiple circuit fluid pressure operable brake system for insuring supply and preservation, in the event of fluid pressure failure in one or more of the circuits, in the remaining circuits for assuring, at least, limited...
11/08/1977
 
Sign InRegister
Username  
Password   
forgot password?