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

Icon_funbox Celebrity Inventors

Comic actor Danny Kaye received patent D166,807 for the co-design of "Blowout Toy or the Like". It's similar to one of those toys that unravels when you blow into at a birthday party except Kaye's has three blowouts going in different directions, not just one.

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 137/204 - Self-emptying


Subclass of Class 137 - Fluid handling
Definition: Separating traps wherein the outlet empties the system of
No. of patents: 65
Last issue date: 07/13/2010


1    
NumberTitleIssue Date
7753069Drain valve
A drain valve for a vehicle compressed air system, which separates dirt, water, debris and other relatively heavy objects from a compressed air stream. The drain valve includes a sump with a tangential inlet. The tangential inlet creates a vortex within the sump tha...
07/13/2010
7326266Coalescing type filter apparatus and method
A coalescing type gas filter includes a filtering element enclosed in an inner chamber which is housed in an outer chamber and a drain device to simultaneously drain accumulated liquid in both the inner chamber and the outer chamber. The drain device contains a pres...
02/05/2008
7285149Oil separator for vehicle air system
An oil separator for use in a vehicle air system includes a recycling valve for removing coalesced oil. The recycling valve may include a piston movable in a cylinder in response to a control air pressure to open the recycling valve and thus drain coalesced oil from...
10/23/2007
7273026Roller follower body
The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i...
09/25/2007
7243673Gas injection device
The subject invention is related to a gas injection device with back-flow leaking liquid discharge, comprising a chamber, a gas inlet conduit, a gas outlet conduit, and a liquid discharging conduit, wherein the gas outlet conduit and the liquid discharging conduit a...
07/17/2007
7186282Motor-vehicle air cleaner
A motor-vehicle air cleaner provided with a check valve mechanism on the lower cap of the air cleaner for drainage and ventilation, and a protection disposed on the outer edge; the check valve being closed as the engine runs to prevent from taking in water vapor and...
03/06/2007
6941702Rainwater collection and dispensation system
A rainwater collection and dispensation system for economically conserving water usage by using collected rainwater. The rainwater collection and dispensation system includes a gutter being adapted to be mounted along an edge of a roof of a building structure; and a...
09/13/2005
6872055Mud suction unit
The invention relates to a mud suction unit having a suction element which is connected to a receiving container and has a motor for the generation of a suction flow and also has a discharging element attached to the receiving container. ...
03/29/2005
6779547Automated condensation drain system
An automated condensate drain system for gas flow elements is provided that includes a differential pressure transmitter, a sequence controller, and two condensate chambers for receiving and collecting accumulated moisture from air flow elements and transmitters. Th...
08/24/2004
6540028Automatic condensate drain device
A pressure operated normally closed control valve operates to open at a predetermined pressure between the system minimum and maximum pressures to open the valve and allow the discharge of condensate from the system which has a source of pressure to provi...
04/01/2003
6443173Automatic drain for a fire protection sprinkler system
An automatic auxiliary condensate drain for an automatic dry-pipe type fire protection sprinkler system, wherein condensation which forms within the sprinkler system due to changes in temperature is drained from the condensate reservoir at the direction o...
09/03/2002
6276894Method and device for drawing condensate off from compressed-gas systems
A method for draining condensate off a compressed-gas system that traps condensate that collects during operation of the compressed-gas system, draws off collected condensate through an outlet, connects a trap volume and a purging device to the outlet, co...
08/21/2001
6196253Continuously operated condensate drain valve
The invention is a continuously operated condensate drain valve operating in real-time response to the presence of an electrically conductive media in the interior chamber of the condensate drain valve. The invented valve includes a valve body, a subminia...
03/06/2001
6170511Normally open purge valve
A purge valve for expelling liquid contaminants from a fluid conduit which is normally unpressurized but is at times pressurized with a gas which contains liquid contaminants. It has a housing, a diaphragm mounted within the housing, a control chamber on ...
01/09/2001
6164312Purge valve
The invention is a valve for expelling a liquid contaminant from a gas in a conduit. It is used for a conduit with a pressure subject to variations in time. The valve has a housing containing a diaphragm with a control chamber on one side of the diaphragm...
12/26/2000
6109289Drain valve
A drain valve of an air braking system for vehicles has a drainage piston, a main sump and auxiliary sump. Moisture passes from the main sump to the auxiliary sump in response to pressure at a signal port which closes off air supply through ports. A reduc...
08/29/2000
6024112Automatic drain valve
A drain valve removes liquid from a compressed air system whenever cycling pressure of the system reaches either a preselected high drain pressure or a preselected low drain pressure at an inlet port of the valve. An inlet face of a piston of an adjustabl...
02/15/2000
5941271Water release valve
Water release valve for a compressed air system. It has a service connection for attachment to a low point of the compressed air system. The valve has a body which has an internal space, part of which is a cylindrical bore. It also has a pilot connection ...
08/24/1999
5867918Gas dryer with an outlet chamber
A gas dryer having a housing, an outlet chamber, a pressure relief space, and a connection connecting the outlet chamber to the pressure relief space. An outlet valve is located within the connection connecting the outlet chamber to the pressure relief sp...
02/09/1999
5865208Water release valve
Water release valve for a compressed air system. It has a service connection for attachment to a low point of the compressed air system. The valve has a body which has an internal space, part of which is a cylindrical bore. It also has a pilot connection ...
02/02/1999
5762094Automatic valve drain
An improved relay valve (10) having a supply port (16), a delivery port (18), an exhaust port (20), a control port (17), a relay piston (14) controlling communication between the supply port (16), the delivery port (18), and the exhaust port (20) in respo...
06/09/1998
5749391Condensate drainage system for pneumatic tanks
A condensate drainage system for pneumatic tanks is disclosed. Large vehicles typically use compressed air for operating various vehicle functions such as its brakes. In conjunction with the use of compressed air there is provided a pneumatic system inclu...
05/12/1998
5709246Booster valve with contaminant ejection for use in a pneumatic brake system
A contaminant-ejecting, pneumatically-controlled brake booster valve is disclosed. The valve comprises an exhaust piston slidably mounted within the stem of a main piston of the valve, wherein the exhaust piston is actuated by supply air pressure to perio...
01/20/1998
5692540Automatic air compressor drain device
An automatic air compressor drain device which is enabled and disabled by the control of a timer to turn on a solenoid for guiding the air from the air tank of an air compressor into the drainer, where the force of the compressed air pushes up the piston ...
12/02/1997
5530987Condensate drain controller
A system for automatically controlling a drain valve connected to a sootblower steam piping system utilizes two temperature measurements, one near the steam source and the other near the drain valve. Comparison of the difference in steam temperature betwe...
07/02/1996
5435422Automatic wet tank drain valve
The invention relates to a drain valve and a method designed to drain condensate and contaminants from a wet tank in a pneumatic braking system for a vehicle. In a preferred embodiment the drain valve comprises a cylindrical piston disposed to slide axial...
07/25/1995
5353835Air tank drain
An automatic air tank drain is provided by forming a venturi induced suction at the tank outlet which draws liquid out of the tank as the tank air is exhausted past the venturi through a flexible hose positioned by a weight at the tank bottom....
10/11/1994
5337779Automatic drain device
An automatic drain device in an air compressor system includes an electrode sensor in a liquid collection cell. An electronic control detects an electrical change in the electrode sensor resulting from contact with liquid in the liquid collection cell and...
08/16/1994
5205315Automatic wet tank drain valve
The manual valve normally attached to the wet tank of an air pressure system in a motor vehicle which accumulates moisture is replaced by an automatic valve which has an inlet port connected to the drain line from the wet tank and an outlet port vented to...
04/27/1993
5205314Air compressor condensate removal system
An expansion chamber is attached between two air compression stages of an air compressor or between an air compression stage and the air holding tank of the air compressor. The expansion chamber has a cylindrically shaped wall with top and bottom portions...
04/27/1993
5195874Multistage compressor
A multistage compressor includes a lower pressure side compression part, a higher pressure side compression part, an intermediate conduit placing the lower and higher side compression parts in communication, and a cooler disposed midway of the intermediat...
03/23/1993
5144974Purge valve assembly
An apparatus having an automatic purge valve assembly for draining condensate out of a compressed air storage tank. An air pressure switch, upon the presence of a predetermined atmospheric pressure in the air storage tank, will energize a relay which in t...
09/08/1992
4987919Pneumatically activated drain valve for compressed air
A drain valve for a compressed air tank is pneumatically activated by the residual air which is released from an air compressor when the air compressor comes to a stop after an active cycle. The invention allows for consistent and reliable draining of con...
01/29/1991
4928724Automatic wet tank drain valve
Valving apparatus for use in automotive vehicles which employ an air pressure system utilizing an air pressure tank, a wet tank interconnected to the air pressure tank for accumulating moisture and a manual valving system for draining moisutre from the we...
05/29/1990
4922947Automatic membrane drain device for pneumatic circuits
The invention provides an automatic drain device with membrane for pneumatic circuits. A flexible membrane (11) which separates the opening (2) of a jar (1) from a drain pipe (6) is precurved in a top position against this opening and against a skull-cap ...
05/08/1990
4883995Automatic oil draining system for generators
A fluid draining system for an electric power generator of the type containing a cooling gas under pressure includes oil-pressurized shaft seals adjacent the rotor bearings, to prevent the pressurized gas from escaping through the bearings. Oil is at a pr...
11/28/1989
4768542Drain valve
A piston (36) divides the valve interior into a main chamber (38) and a sensing chamber (40). A fixed valve seat (26) sealingly engages the piston (36) to close communication between the chambers (38, 40). The seat (26) is carried by an axial stem (20) wh...
09/06/1988
4622996Aspirator for pulse-jet air cleaner
An improved pulse-jet air cleaner (10) includes an aspirator (32) with a tube (34) extending between a point in the tank (12) where moisture tends to collect, and a point in predetermined spaced relationship adjacent the tank outlet (20) where the airflow...
11/18/1986
4622995Integral valve and tank assembly for pulse-jet air cleaners
An integral valve and tank assembly (12) for a pulse-jet air cleaner includes a discharge pipe (22) connected to and extending directly into a tank (14). The inlet end (28) of the discharge pipe (22) terminates adjacent to a relatively larger opening (30)...
11/18/1986
4580543Ventilator for internal combustion engine
A ventilator for use with an internal combustion engine includes an oil sump located at the lower end of the vertically extending outlet tube of the ventilator, a check valve disposed at the bottom of the sump for allowing fluid to flow from the sump towa...
04/08/1986
1    
 
Sign InRegister
Username  
Password   
forgot password?