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Class 137/198 - With reverse flow stop or pressure regulating valve


Subclass of Class 137 - Fluid handling
Definition: Separating traps further provided with a pressure responsive
No. of patents: 18
Last issue date: 02/14/2012


NumberTitleIssue Date
8113227Fuel cartridge with flexible liner
A cartridge connectable to a fuel cell is disclosed. The cartridge comprises an outer casing and an inner flexible liner containing fuel for the fuel cell. The inner flexible liner may have an insert disposed inside the inner liner to facilitate the transport of fue...
02/14/2012
7334600Priming apparatus for a centrifugal pump
A vacuum assisted priming system for a fluid pump including a housing defining a hopper that communicates with a pump inlet. The housing mounts a first port that communicates with the source of vacuum and a second port that communicates with atmosphere. A check valv...
02/26/2008
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
7219683Cut valve with check valve
A cut valve with a check valve includes a body case, a cap member, positive and negative pressure valves, and first and second springs. The body case defines a vent hole. The cap member is fitted to an upper portion of the body case. The positive pressure valve is m...
05/22/2007
7146729Fuel vapor vent valve and method of attaching same to a tank
A float operated fuel vapor vent valve has body structure with an annular mounting flange formed of material weldable to a fuel tank and the flange is spin welded to the tank. The float has surfaces thereon which slidably engage corresponding surfaces in the float c...
12/12/2006
7013907Gas purge valve
A gas purge valve comprising a housing fitted with an inlet port being in flow communication with a liquid outlet port, and at least one gas outlet member, a gas flow barrier associated with the liquid outlet port, a float member displaceable within the housing betw...
03/21/2006
6422255Multi-function valve having a movable seat and needle
A multi-function pressure relief valve having a moveable seat and a needle is mounted on a fuel vapor separator. The needle is connected to a float assembly for opening and closing the pressure relief valve for venting an internal chamber of the fuel vapo...
07/23/2002
6382929Valve combination for vibration pumps
A valve combination for vibration pumps performs multiple functions of self-priming, compensation of negative pressure and protection against over pressure. A body (12) contains a non-return valve (18). A valve (26) releases air and compensates for negati...
05/07/2002
6334459Multi-fuctional brake bleeder tool
A brake bleeding tool having a positive locking device, one for each, of the standard and the recessed bleeder valves of vehicle braking systems. These tools have a nut driver configuration on the proximal end allowing the mechanic to open and close the v...
01/01/2002
6247487Valve assembly
A valve assembly 10 for use in a hydraulic circuit. Valve assembly 10 includes a generally hollow cylindrical member 12 and a pair of generally spherical sealing balls or members 14, 16, which are each movably disposed within member 12. Member 12 is opera...
06/19/2001
6080461Viscoelastic memory means and flow control valve and use thereof to produce a single-use, auto-destruct injection device
Solid disks of polyethylene oxide are radiation crosslinked to instill viscoelastic memory. The disks are then pierced with a needle, heated, cooled and the needle removed to form disks containing a flow orifice in each which upon contact with water will ...
06/27/2000
5552646Compact control and monitoring switch
A device for control and monitoring of pressure in a system combines a conventional three pole pressure switch with the following additional features: (1) a lock mechanism with three influencing input factors and a single resulting output contact action, ...
09/03/1996
5402818Fuel shut-off device
In a first valve mechanism 30, a positive pressure spring 31 presses a first valve plug 34 to seat an external ring projection 37 of the first valve plug 34 onto a bottom surface 39 of a support cylinder 35. The first valve mechanism 30 opens at a first v...
04/04/1995
5363510Pressure relief vent for a waste holding tank
A vent for a removable toilet holding tank includes a valve member that is in communication with both the holding tank interior and the ambient atmosphere and is moved off its valve seat when the pressure within the holding tank exceeds the ambient pressu...
11/15/1994
5305793Automatic pressurized reservoir bleed valve
An automatic bleed valve for bleeding air from a pressurized liquid reservoir includes a piston in a position piston chamber located in a flow channel leading from the reservoir. A first orifice is provided in a passage through the piston, and the piston ...
04/26/1994
4813446Automatic pressurized reservoir bleed valve
An automatic bleed valve for bleeding air from a pressurized liquid reservoir or, with reversal of principal elements, bleeding liquid from a compressed gas reservoir comprises a piston in a piston chamber located in a flow passage leading from the reserv...
03/21/1989
4524793Automatic reservoir bleed valve
An automatic valve for bleeding air from liquid or with reversal of the principal elements, vice-versa. In an embodiment for bleeding free air from a hydraulic fluid reservoir or the like, a capillary extends through a movable piston in series with an ori...
06/25/1985
4052178Compressed air filter assembly
An assembly connectable between a compressor and reservoir, having a filter unit capable of centrifugally cooling and separating condensed moisture and other contaminants from compressed air and discharging clean air in saturated condition at the outlet t...
10/04/1977
 
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