Pumps inventions

20090280014 - Controller for a motor and a method of controlling the motor: A pumping apparatus for a jetted-fluid system includes a pump having an inlet connectable to the drain, and an outlet connectable to the return. The pump is adapted to receive the fluid from the drain and jet fluid through the return. The apparatus includes a motor coupled to the pump... Agent: Michael Best & Friedrich LLP

20090280015 - Linear compressor: The invention refers to a linear compressor, comprising: a shell (20); a cylinder (30) affixed to the shell (20) and defining a compression chamber (C); a piston (40) to be displaced in reciprocating movement in the interior of the compression chamber (C) during the operation of the compressor; a linear... Agent: Darby & Darby P.C.

20090280016 - Peristaltic pump: A peristaltic pump uses a length of elastic tube with an inlet at one end and an outlet at the second end for delivering fluid material an outlet pressure greater than the inlet pressure. A support element disposed along the length of elastic tube is in contact with the elastic... Agent: Fish & Richardson P.C.

20090280017 - Compressor slide valve support: A compressor (20) has an unloading slide valve (100). The valve has a valve element (102) having a range between a first condition and a second condition, the second condition being unloaded relative to the first condition. A first surface (200) of the valve element (102) is in sliding engagement... Agent: Bachman & Lapointe, P.C. (utc)

20090274563 - Methods and systems for automatic rotation direction determination of electronically commutated motor: A method for determining a direction of rotation for an electronically commutated motor (ECM) is described. The motor is configured to rotate a blower and the method comprises rotating the blower using the ECM and determining if the resulting blower rotation is indicative of the desired direction of rotation for... Agent: Patent Docket Department Armstrong Teasdale LLP

20090274564 - Floating cup pump having swashplate mounted cup elements: A floating cup pump assembly incorporating a tilted swashplate structure with cup elements projecting away from either side of the swashplate structure. The swashplate structure is positioned between a first group of matedly engaged piston elements and a second group of matedly engaged piston elements. The piston elements rotate around... Agent: Leydig, Voit & Mayer, Ltd

20090274565 - Continuing compressor operation through redundant algorithms: A method of operating a compressor of a compressor system is disclosed. The method uses three models. Each model of the three models describes a surge line of the compressor as a function of any two of three operating parameters of the compressor. The three operating parameters include head H,... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20090274566 - Check valve with plastic lip seal: A check valve is provided having a seat and a poppet. The seat is made of a plastic material, has an aperture for enabling fluid to flow through the seat, and also has one end portion that has a circumferential edge with a thin sealing lip. The poppet is slidably... Agent: Ware Fressola Van Der Sluys & Adolphson, LLP

20090274567 - Tubing misload detection mechanism for an infusion pump: A an infusion tube misfitting detection device for an infusion pump, which can be implemented at a low cost while maintaining safety. When a door unit is to be closed with respect to a pump body in a misloaded state of an infusion tube, a mislead detection inner door is... Agent: Studebaker & Brackett PC

20090274569 - Piston compressor: A piston compressor with at least one compression cylinder having a piston, and with one suction port and one pressure port is described. The suction port and the pressure port are arranged at one end face of the compression cylinder.... Agent: Hudak, Shunk & Farine, Co., L.p.a.

20090274568 - Piston pump: A piston pump, having a pump housing in which a pump piston is guided in an axially moving fashion so that when the pump piston is actuated, a fluid is conveyed from a suction side to a pressure side via a pumping chamber that adjoins the pump piston; a region... Agent: Ronald E. Greigg Greigg & Greigg P.l.l.c.

20090274570 - Self-aligning dynamic clearance seals and fluid-moving devices utilizing such seals: A self-aligning dynamic clearance seal assembly is disclosed. The assembly comprises a stationary casing, a moving member, a housing member circumferentially disposed between the stationary casing and the moving member, a sealing member circumferentially disposed between the housing member and the moving member, and two elastomeric seals. The first elastomeric... Agent: Morrison & Foerster LLP

20090263255 - Apparatus and method for controlling electric compressor: There is provided an apparatus for controlling an electric compressor, which can actuate the electric compressor rapidly through a simpler and lower-cost configuration while achieving reduction in weight, cost, and assembling time of the electric compressor. In the case where a pressure difference between the inlet side and the outlet... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20090263256 - Head for a peristaltic pump: A head for a peristaltic pump that may be used for delivering ink to a flexographic printing press includes a housing and a roller assembly. The housing is adapted to receive a flexible tube. The housing has a curved wall and a clamp. The clamp secures the flexible tube within... Agent: Hammer & Associates, P.C.

20090263257 - System and method for delivery of precursor material: According to the invention, an inert gas is bubbled through the product, in particular pyrophoric, to be purified in the liquid state in order to generate a mixture, the mixture is preferably routed close to the use point, the product, in particular pyrophoric, is separated from the inert gas and... Agent: Air Liquide Intellectual Property

20090263258 - Vibration dampening media in hydraulic power units: A hydraulic power unit that uses a quantity of media within a cavity adjacent to and surrounding a hydraulic assembly in the housing of the hydraulic power unit to reduce the overall noise of the unit. Additionally, the cavity either seals the media from the moving parts of the hydraulic... Agent: Zarley Law Firm P.L.C

20090263259 - Hydraulic pump adaptation for an auxiliary power unit: The present invention is generally related to providing auxiliary power to long-haul trucks and similar types of transportation vehicles, and more particularly related to an easily installed and maintained auxiliary power unit that provides operational levels of electrical power and HVAC services while simultaneously driving a hydraulic system through an... Agent: Silversky Group LLC

20090263260 - Inverter device: The inverter device contains the following structure: an inverter circuit which has upper-arm switching elements that are connected on a positive side of a DC power source and lower-arm switching elements that are connected on a negative side of the DC power source; a current sensor that detects current flowing... Agent: Ratnerprestia

20090263261 - Device for returning oil separated from blow-by gases and accumulated in an accumulation chamber: The invention relates to a device for returning oil separated from blow-by gases and accumulated in an accumulation chamber (5) into the crankcase (2) of an internal combustion engine with a pump (9), wherein the pump (9) is located on a component (8) of the internal combustion engine, which component... Agent: Madson Ip

20090263262 - Linear compressor: A linear compressor (1) includes a cylinder (21) with a piston (22) connected through a main spring (19) and a planar spring (20). One or more flat blocks of permanent magnet material (17) with large faces of the blocks facing a stator (15) and defining armature poles are secured to... Agent: Trexler, Bushnell, Giangiorgi, Blackstone & Marr, Ltd.

20090263263 - Suction device: A suction device (10) is described. The suction device (10) includes a cylinder (11) having a semi-closed end (113), a suction tip (13) connected to the semi-closed end (113), a piston (12), an elastic member (16) and an electromagnetic member (17). The piston (12) is slidably received in the cylinder... Agent: PCe Industry, Inc. Att. Steven Reiss

20090263264 - Bi-directional continuous peristaltic micro-pump: A bidirectional continuous peristaltic micro-pump is described. The micro-pump comprises: a substrate, an actuating mechanism and a fluid channel. The actuating mechanism comprises: a first slanted membrane the thickness of which increases progressively from left to right, a first chamber formed between the first slanted membrane and the substrate; and... Agent: Apex Juris, PLLC