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Patent No. 5979328

Vehicular Impact Signaling Device

An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.

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Class 417/533 - Common discharge conduit interposed between spaced parallel chambers


Subclass of Class 417 - Pumps
Definition: Apparatus in which two or more pumping chambers are positioned
No. of patents: 43
Last issue date: 01/31/2012


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NumberTitleIssue Date
8105057Fluid transportation device having multiple double-chamber actuating structures
A fluid transportation device includes a flow-gathering module and multiple double-chamber actuating structures. The flow-gathering module includes two surfaces opposed to each other, multiple first flow paths and multiple second flow paths running through the two s...
01/31/2012
7470117Variable discharge fuel pump
A pump has a housing defining a first pumping chamber and a second pumping chamber. The pump also has a first plunger and a second plunger. The pump additionally has at least one driver operatively engaged with at least one of the first and second plungers to move t...
12/30/2008
7252486Hand-operated inflator
A hand-operated inflator with dual cylinder is provided. Once the cylinders are pulled out on two sides of the central block to form a line axially, and a clamp plate at mid point in between the two cylinders is turned to the transversal position to lock the cylinde...
08/07/2007
7231783Oil control system for a refrigeration system
A refrigeration system includes a compressor having a compressor housing and operable to compress a flow of refrigerant. A pump is operable to provide a flow of oil to the compressor. A portion of the oil mixes with the flow of refrigerant and the remainder of the o...
06/19/2007
7179060Variable discharge pump with two pumping plungers and shared shuttle member
The present invention relates generally to variable discharge pumps, and specifically pumps used in fuel injection systems. Typically, such pumps include a dedicated spill control valve for each pumping plunger, that also doubles as an avenue for refilling the pumpi...
02/20/2007
7131820Method for controlling a thick matter pump
A method for controlling a thick matter pump comprising two delivery cylinders (10) emerging, via two openings (12), into a material reservoir (14), associated with two delivery pistons (26), symmetrically synchronized relative to said cy...
11/07/2006
7071429Linear adjustment operator for pressure control of paint pumps
A linear adjustment operator for pressure control of paint pumps including a base, an electrical switch, a linear actuator, a spring biasing the switch towards the actuator and a lever acting on the actuator for repositioning the actuator with the switch positioned ...
07/04/2006
6941767Compression mechanism oil equalizing circuit, refrigeration system heat source unit, and refrigeration system provided with the same
The present invention provides an oil equalizing circuit that can improve the reliability of the oil supply to the compression mechanisms in a refrigeration system provided with a plurality of compression mechanisms. The compressor group of the air conditioning syst...
09/13/2005
6935850Axially aligned dual piston cylinder air pump with a common head portion
A dual-direction pump includes two cylinders arranged on opposite sides of a head portion and an inlet return-flow prevention device and a leakproof device mounted between the cylinder and the head portion for avoiding leakage at the juncture between the cylinder an...
08/30/2005
6843643Valve mounting arrangement in a diaphragm pump
A pump which has a diaphragm main body integrally connected at a planar portion to a diaphragm portion forming a pump chamber and performs a pumping action by reciprocating a driving portion disposed integrally with the diaphragm portion; the pump being configured c...
01/18/2005
6623254High pressure water pump
A high-pressure water pump for supplying high pressure water for atomization in the inlet stream of a gas turbine is disclosed which includes at least one hydraulic cylinder containing a piston secured to a piston rod extending from the hydraulic cylinder...
09/23/2003
6505691Subsea mud pump and control system
The invention is a subsea pump that includes pumping elements, each pumping element including a pressure vessel with a first and a second chamber therein and a separating member disposed between the first and second chambers. The first and second chambers...
01/14/2003
6382935Electromagnetic diaphragm pump
An electromagnetic diaphragm pump has two compression sections operated by an AC. Each of the compression sections comprises an oscillator disposed within a housing and holding a permanent magnet, a pair of diaphragms each having a peripheral portion fixe...
05/07/2002
6368080Continuous fluid injection pump
A continuous fluid injection pump delivers a constant flow of fluid under variable loads. This pump includes a housing with an inlet, and outlet and a bore, an inlet line between the housing inlet and the bore, an outlet line between the housing outlet an...
04/09/2002
6364636Structure of a miniature pumping machinery
A miniature diaphragm pump includes a motor unit, a compression portion, and an air collection portion. The output air is injected into the inner space of the pump through the air inlet formed at the motor unit, and the air exits from the pump through an ...
04/02/2002
6350112Dual-direction pump for a bike
An air pump has a positioning seat provided to have two mouths each with an inner thread formed on an inner face thereof and an outer thread formed on an outer face thereof and a nozzle formed to adjust to an inlet of a tire; and two pump barrels each cor...
02/26/2002
6299415Double-acting pump
A double-acting pump having two cavities, each of which is divided into an operating chamber and a working chamber by means of a respective movable partition wall. Each of the operating and working chambers is provided with a valve-controlled inlet and ou...
10/09/2001
6164927Process for venting a hydraulic assisted steering system
In order to reduce the amount of air trapped in hydraulic assisted steering systems (1), a communication (13, 14) is established between the area of the oil expanding volume (8, 10, 11), which is the top area in the mounted position, and an open system (2...
12/26/2000
6126410Head cover assembly for reciprocating compressor
A head cover assembly for a compressor according to the present invention includes a valve plate mounted onto the compressor cylinder having a first side, a second side, a first bore, and a second bore, a first valve connected to the first side of the pla...
10/03/2000
6079959Reciprocating pump
Pumps of this invention comprise a pump housing having at least one pressurizing chamber disposed therein, and a pressurizing member is disposed within the pressurizing chamber. The pressurizing member has a body with a solid imperforate head at one end, ...
06/27/2000
6047902Road marking machine with a pump combination driven in proportion with the traveling speed
A road marking machine comprising a spray gun and a combination of two displacement pumps for supplying the marking substance to the spray gun, wherein the combination is driven in proportion with the traveling speed and wherein the pumps, each after star...
04/11/2000
6017198Submersible well pumping system
The invention generally concerns a submersible well pumping system comprising an axially elongated housing having a diameter less than the bore hole of the well, a multi-chamber hydraulically driven diaphragm pump, suspended in the well using coiled tubin...
01/25/2000
5934888Aspirator pump
An aspirator pump, especially for medical purposes, has a receptacle with two chambers arranged alongside each other, which are connected with a suction tube, and on each of which an element is arranged which is movable approximately parallel to the other...
08/10/1999
5846420Filter backflushing system using piston arrangement with connected chambers
The piston arrangement includes one or more pistons, each propelled by a pneumatic actuator. Alternately, an accumulator-type actuator may be used, wherein compressed gas is inputted directly into the backflushing fluid chamber to reverse fluid flow throu...
12/08/1998
5800139Electromagnetic oil pump
An electromagnetic pump has a solenoid reciprocating a piston that abuts the ball of a first, one-way ball valve coaxially aligned with the piston axis. In the abutting position the piston closes the valve and provides a pump chamber of very small volume....
09/01/1998
5791882High efficiency diaphragm pump
A pump comprising a housing, a diaphragm mounted in the housing, a pumping member or members, and a drive, preferably a wobble plate drive, for driving the pumping member or members on intake and discharge strokes. The wobble plate is preferably mounted o...
08/11/1998
5785504Pump with separate pumping stages for pumping a plurality of liquids
The pump comprises three distinct series of pumping stages driven on a single shaft by the same motor. Between the first and second series of pumping stages, the liquid is diverted from the pump through a by-pass towards, for example, a filtering device f...
07/28/1998
5690478Solid material pump
A solid material pump comprising a pump housing, a pair of parallel pump cylinders driven by hydraulic cylinders and each connected to a pump chamber, a slurry feed device which communicates via inlet valves with inlet valve chambers each of which communi...
11/25/1997
5622478Method for hydraulic gas compressor
A gas compressor with at least three hydraulic cylinders is connected to a source of natural gas by a gas line. The gas line can also be removably attached to a storage tank. A hydraulic system is also connected to the cylinders. The compressor additional...
04/22/1997
5588816Disposable cassette for cardioplegia delivery system
A disposable cassette for a cardioplegia system for delivering cardioplegic solution to the heart during open heart surgery in cooperation with an extracorporeal blood circuit employing a heart/lung machine, includes a conduit diverting a portion of the b...
12/31/1996
5533436Hand air pump having two actuators
An air pump includes two operating rods slidably engaged in two cylinders and having an upper end extended outward of the cylinders. A block is secured to the upper ends of the operating rods. A coupler is rotatably secured to the upper portion of the blo...
07/09/1996
5513966Misalignment compensating manifold for twin pumps
A liquid manifold for connecting to adjacent pumps, wherein the manifold has two sections. Each section is independently connected to a liquid pump and threadably secured to the pump at a position which provides the most precise alignment of the respectiv...
05/07/1996
5439038Carbonated beverage containers pressurizing device
An apparatus for repressurizing a partially emptied carbonated beverage bottle, comprises a stationary pumping station mountable against a wall or under a kitchen cabinet, and a set of bottle caps adapted for use on the pumping station. The station includ...
08/08/1995
5358385Dual diaphragm pump with adjustable discharge side pressure trip switch
A new structure for an efficient electric pump is described. The electric pump of this invention mainly comprises a cover plate, a top cover and a housing to make up the outside appearance. Its inside consists of a dual piston device, an eccentric transmi...
10/25/1994
5154586Multi-channel linear concentrate pump
A concentrate supply assembly for a post-mix beverage dispenser includes a plurality of containers for concentrate with discharge openings through which concentrate may flow. A plurality of conduits are coupled to the discharge openings and are in fluid c...
10/13/1992
5094598Capacity controllable compressor apparatus
A capacity controllable compressor apparatus has a plurality of high-pressure chamber compressors which are connected in parallel to a common refrigerant suction pipe and a common refrigerant discharge pipe, and oil equalizing pipes through which oil sump...
03/10/1992
5009580Multiple reciprocating pump
A multiple reciprocating pump such as a triple diaphragm or piston pump has a drive shaft (28), a plurality of reciprocating rods (48a, 48b, 48c) arranged in parallel with one another at one side of the drive shaft (28) and capable of reciprocating in acc...
04/23/1991
4770181Gas stream blower for non-contact type tonometer
A gas stream blower for non-contact type tonometer comprises a cylinder, a piston arranged in the cylinder to divide the interior thereof into an air open chamber and a compression chamber, a nozzle communicated with the compression chamber such that air ...
09/13/1988
4744735Parallel-cylinder, angled-valve fluid pump
A dual cylinder hydraulically operated pump for viscous materials is described. The pump comprises a pair of pistons reciprocable in parallel cylinders opening into a common inlet and outlet housing in which the outlet valve seats are angled with respect ...
05/17/1988
4671745Magnetically-activated motorized pump
A magnetically-actuated, motorized pump includes a plurality of cylinders extending at radially-spaced intervals between first and second heads. Each cylinder reciprocably receives a piston assembly including a pair of permanent magnets with outwardly-ext...
06/09/1987
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