Class 417/543 - Direct contact with confined compressible fluid

Subclass of Class 417 - Pumps
Definition: Apparatus in which said means comprises an enclosed space
No. of patents: 29
Last issue date: 08/14/2007

Number	Title	Issue Date
7255133	Fluid pressure system including free floating bladder A fluid pressure system (S) includes a flexible diaphragm bladder (172) located inside a pressure tank (164) installed within a fluid system such as well (168). In preferred aspects, the bladder (172) can be inflated by the introduction o...	08/14/2007
7066201	Valve device having solid engaging structure A valve device includes a housing including a peripheral valve seat extended into a chamber, to separate the chamber into two separated spaces. A valve member includes an outer peripheral groove to receive a sealing ring for engaging with the peripheral valve seat o...	06/27/2006
7055721	Finger-operated spray pump ejaculating fluid in fixed quantity The present invention relates to a finger-operated spray pump ejaculating fluid in fixed quantity at one-time pumping, and more particularly a spray pump in which a poppet valve and a sliding seal are made as one unit and the structure of the housing is modified for...	06/06/2006
6913169	Low profile, fine mist, finger-operated, precompression-type spray pump The present invention relates to a low profile, fine mist, finger-operated, precompression-type spray pump, and more particularly to a spray pump provided with a second valve of the novel structure being moveable between a poppet valve and a bottom entrance of housi...	07/05/2005
6488481	Compressor with suction muffler structure A compressor has a suction muffler structure capable of reducing vibration and noise accompanying liquid compression. The suction muffler structure involves a muffler chamber defined between a suction chamber of the compressor and an external coolant circ...	12/03/2002
6305919	Hydraulic pump housing with an integral dampener chamber A hydraulic pump [14] for an electro-hydraulic power steering system is positioned in a fluid reservoir [16] in a pump housing [12]. The pump [14] has an upstream end [40] that receives fluid from a fluid source and a downstream end [42] that is in commun...	10/23/2001
6183224	Airless paint sprayer intake dampener An airless paint sprayer has a pressure dampener in the paint supply line to the pump for providing consistent atomization at the spray gun orifice. During peak pressure times within the system and when an inlet check valve is open, paint within the press...	02/06/2001
6116872	Ripple reducing device A ripple reducing device of the present invention for reducing ripple of oil flowing through a hydraulic line includes a closed line that diverges from the hydraulic line and is closed at a terminal end thereof, and at least one restrictor that divided th...	09/12/2000
6062830	Diaphragm type damper A diaphragm type damper has a combined member, which is formed by welding a marginal portion of a diaphragm to a half body having a concave portion formed therein, and is fixed to a pressure chamber portion to which high pressure fluid is introduced. A wa...	05/16/2000
5860799	Pulsation damper for marine tank pumpout systems A marine tank (such as a toilet system holding tank, or bilge tank) pump out system includes a positive displacement pump connectable at the inlet to a marine tank to be pumped out and connectable at the outlet to a discharge tank or area. A pulsation dam...	01/19/1999
5794594	Fuel injection pump A fuel injection pump for internal combustion engines, which includes at least one pump piston driven by a cam drive mechanism to carry out a feed stroke and an intake stroke. The pump includes a fuel filled storage chamber that is under storage pressure ...	08/18/1998
5656879	Magnetic eccentric motion motor An eccentric-motion motor for driving a utilization mechanism includes a stator defining a closed surface pathway, an armature composed of a permanent magnet rollably disposed on the closed surface pathway, a series of electromagnetic elements disposed in...	08/12/1997
5639219	Airless paint sprayer intake dampener and inlet valve spring An airless paint sprayer includes an inlet check valve assembly having a dual spring configuration which allows for increased travel distance of the inlet check valve thereby increasing the fluid flow through the valve without diminishing response time of...	06/17/1997
5487652	Fuel flow stabilizer A fuel delivery system in an engine is provided with a fuel flow stabilizing device for instantaneously providing a precise amount of fuel to the engine according to a particular fuel demand. The fuel flow stabilizing device has an accumulator device whic...	01/30/1996
5281101	Water supply system and method of operation thereof A water supply system includes a motor operated pump (12) which provides water upon demand to a remote location via a discharge pipe (13). When the demand 5 ceases, the pump (12) continues to operate to provide water to an annular chamber (21) which is un...	01/25/1994
5277559	Sliding seal pump A precompression pump is disclosed with a sliding inlet valve seal. In a first embodiment, the valve seal has sealing and retention surfaces which interact with sealing and retention surfaces on a bead on the inner wall of the pump chamber, to seal the pu...	01/11/1994
5219277	Electric-motor fuel pump An electric-motor fuel pump that includes an inlet end cap, an outlet end cap and a case coaxially joining the end caps to form a closed pump housing. An electric motor is disposed with the housing, and includes an armature journalled for rotation between...	06/15/1993
5190443	Hydropneumatic constant pressure device A hydropneumatic arrangement is provided for actuating a pump upon pressure decrease and for deactivating the pump upon flow decrease. The hydropneumatic arrangement includes a bearing cylinder; a flow sensor piston movably disposed within the bearing cyl...	03/02/1993
5122039	Electric-motor fuel pump An electric-motor fuel pump that includes an inlet end cap, an outlet end cap and a case coaxially joining the end caps to form a closed pump housing. An electric motor is disposed with the housing, and includes an armature journalled for rotation between...	06/16/1992
4948346	Fuel pump mount for reduction of vibration transmission To reduce transmission of pump vibration and any out-of-balance characteristics to a pump enclosure by mounting both ends of a motor armature in a manner to absorb vibration. One end of the armature drive shaft is mounted in a flexible elongate element wh...	08/14/1990
4879029	Liquid chromatograph apparatus Liquid chromatograph apparatus includes a solvent proportioning valve arrangement which comprises a block (21) having four inlet passages and a number of outlet passages communicating with a common outlet passage (28) and an outlet port (29) to which a tu...	11/07/1989
4628994	Oil wells The invention relates to an oil well comprising a production tubular with a pump barrel attached to its lower end, a reciprocable oil pump having a plunger located within the pump barrel, a sucker rod string extending downwardly from ground level to the p...	12/16/1986
4627243	Gas supply system for variable demand application A system for the supply of gas to a variable flowrate consumption use point comprising monitoring specified system parameters, making specified determinations, and adjustable the liquid pump speed accordingly. Preferably the monitoring is computerized. Th...	12/09/1986
4445829	Apparatus for dampening pump pressure pulsations A pressure pulsation dampener particularly adapted for use in connection with positive displacement reciprocating plunger pumps comprising a pressure vessel adapted to be connected to the pump discharge flow line and having a liquid volume capacity suffic...	05/01/1984
4345594	Closely controllable intravenous injection system An apparatus is provided for injecting fluid into a patient over an extended period of time, such as in intravenous feeding of a patient. The apparatus enables close control of injection quantity and rate while assuring an even flow into the patient. The ...	08/24/1982
4194870	Slam prevention in liquid pumping Conventional installations for pumping of liquid LNG (liquefied natural gas) from a sealed tank of a marine vessel to a shore installation commonly include a pump immersed in the liquid, a riser pipe from the pump to a level above the liquid, a stop valve...	03/25/1980
4190403	Fluid flow stabilizer and phase separator A stabilizer is disclosed, as for use at the intake to a fluid pump, comprising a tank for containing a reservoir of liquid for supplying the pump. Extending from and above the tank, a tube provides a dome to confine a volume of gas to dampen pulsations c...	02/26/1980
4076464	Dual wave motion pump An apparatus for the conversion of complex surface motion of the sea or other fluid body into useful energy, comprising a pair of floating bodies, each of which constitutes a wave motion pump; the pair of floating bodies being linked by a lever whose moti...	02/28/1978
4031920	Pressurized hydraulic sump system A pressurized hydraulic sump system comprises a sump manifold to which a variable volume reservoir is connected, and is characterized by a piston which is displaceable by hydraulic means to vary the volume of the reservoir in accordance with the position ...	06/28/1977

PatentStorm

Bizarre Patents

PatentStorm News

Class 417/543 - Direct contact with confined compressible fluid