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| Number | Title | Issue Date |
| 7228941 | Metering device for lubricant The invention relates to a metering device for lubricant having a lubricant reservoir (1), a piston (3), which is arranged on a threaded spindle (2), within the lubricant reservoir and a drive head 4, which has a drive shaft (7) co... | 06/12/2007 |
| 6676387 | Metering pump with a rotary valve responsive to electrical signals from the contact between a fluid responsive shuttle and dual probes A metering device contains a rotor which defines elongate chamber, there being a shuttle contained within the chamber movable between two terminal end positions. Frusto-conical surfaces defined on the rotor cooperate with annular members defining correspo... | 01/13/2004 |
| 6575078 | Fluid motor having fluid actuated advancing elements to advance an advanceable part of the fluid motor relative to a stator part of the fluid motor A fluid motor includes a plurality of fluid actuated pistons 13 extending radially outwards from a stator and each having a cam follower bearing 14 at its outer end. A rotor surrounds the stator and includes an inwardly facing drive cam profile engaged by... | 06/10/2003 |
| 6551066 | High pressure portable air compressor A portable air compressor includes a frame, a motor mounted to the frame, a storage tank coupled to the frame and a compression mechanism in communication with the storage tank. The motor drivingly engages the compression mechanism. The compressor include... | 04/22/2003 |
| 6539986 | Liquid discharging apparatus and method for discharging liquid To eliminate influence of discharge amounts depending on changes in liquid level of a liquid storage tank and to improve discharge accuracy of a liquid discharging apparatus. By a pressure regulating opening portion for forming a reference liquid surface ... | 04/01/2003 |
| 6322336 | Lubricating device for a plurality of lubricating stations In a lubricating device for a plurality of lubricating stations, in particular for supplying lubricant to knitting machines, a pump device is provided that serves at the same time as a distributor device. To that end, the pump device has a piston which is... | 11/27/2001 |
| 6231321 | Air compressor This invention pertains to an air compressor having a cylinder head with an air supply passage communicating with a discharge hole. First and second exhaust passages are arranged in parallel between the air supply passage and an exhaust port. A pilot-oper... | 05/15/2001 |
| 6074177 | Air compressor with air drier having a bypass passage disposed in the air drier The present invention provides an air compressor which includes an air drier filled with a drying agent and having a first passage for supplying compressed air to one air supplied part while absorbing moisture from the compressed air by passing the compre... | 06/13/2000 |
| 6062826 | Pulsating vibration air generation means A pulsating vibration air generator in which wave height, frequency and wave shape of the pulsating vibration air can be optionally modified and such pulsating vibration air can be periodically and continuously emitted. The pulsating vibration air generat... | 05/16/2000 |
| 5860798 | Pump for pumping a fluid comprising a liquefied gas and apparatus having a pump The pump has a sleeve-like bearer. This contains a bush in which a piston is displaceable along an axis. The bearer inner surface and the bush outer surface are adjacent to one another in parts and are separated from one another in parts by an intermediat... | 01/19/1999 |
| 5593288 | Liquefied gas pump A liquefied gas pump includes a piston and a cylinder which form a pump chamber into which a liquefied gas entrance path and a liquefied gas discharge path open. Relative upward and downward motion between the piston and cylinder provides a repetition of ... | 01/14/1997 |
| 5577892 | Method of injecting fuel including delayed magnetic spill valve actuation In a method of injection fuel for Diesel engine comprising a high pressure injection pump with a fuel supply line for supplying high pressure fuel to fuel injection nozzles wherein a fuel control line extends between the pump and a low pressure fuel suppl... | 11/26/1996 |
| 5374168 | Reciprocating piston fluid pump A reciprocating piston fluid pump according to the present invention comprising: a pump driving section including a cam operated by an engine and a roller driven by the cam, the roller being provided at a lower end of a piston rod; a piston provided at an... | 12/20/1994 |
| 4865525 | Metering pump A metering pump comprises a pump chamber with a diaphragm for delivering a metering agent to a metering point. The pump chamber is adapted to be connected with the metering agent tank through a suction conduit comprising a suction valve. Moreover, a retur... | 09/12/1989 |
| 4854835 | Plunger pump A plunger of a plunger pump is formed with an air vent passageway having its one end open to a compression chamber and the other end adapted to communicate with a reservoir space open to the atmosphere when the plunger comes near its top dead point. Air o... | 08/08/1989 |
| 4809731 | Liquid injection apparatus having an external adjustor A liquid additive injection pump has a hydraulic motor comprising a differential piston assembly reciprocable in a housing under the urging of a primary liquid into which an additive is to be injected. The piston assembly includes valves to effect the tra... | 03/07/1989 |
| 4787832 | Automatic air vent device for fluid pump of internal combustion engine Several embodiments of venting arrangements for the lubricant pump of a two-cycle, crankcase compression internal combustion engine for an outboard motor and having a positive lubricating system. In each embodiment, the lubricant pump is provided with a v... | 11/29/1988 |
| 4632648 | Grease pumps A high pressure low volume grease pump is provided having a pump and a surrounding distributor adapted for sequentially distributing grease to a plurality of outlets and a reservoir delivering grease to the pump and receiving grease from any outlet not co... | 12/30/1986 |
| 4541455 | Automatic vent valve An automatic vent valve having a stoppage member within a flow chamber located between an inlet chamber and vent chamber with said stoppage member being biased against a lower seat. The stoppage member moves between said lower seat and an upper seat in re... | 09/17/1985 |
| 4537284 | Lubricant distributor The progressive distributor contains a control piston which is slidable in a cylinder. The piston contains a main channel and a plurality of radially disposed distribution channels for distributing lubricant. The cylinder has feed channels which are align... | 08/27/1985 |
| 4523903 | Dosing pump A dosing pump (1) is created allowing to accurately dose a medium to be dosed as a function of time or of a flow rate. The dosing pump (1) utilizes a predelivery obtained by a diaphragm (11) as well as a piston-cylinder-pump for dosing. The pump cylinder ... | 06/18/1985 |
| 4416596 | Fluid-transfer system and method A fluid-transfer system has two pistons movable within a barrel so that the ends of the piston faces can move together or apart, the barrel having at least two openings therein for transfer of fluid into and out of said barrel. The pistons can be controll... | 11/22/1983 |
| 4286930 | Fuel injection systems A fuel injection system includes a pumping plunger which is actuated by an actuating means to displace fuel through a valve controlled outlet. In order to reduce the fuel pressure quickly at the end of the stroke of the plunger valve means is provided whi... | 09/01/1981 |
| 4236881 | Liquid metering pump A liquid metering pump has power-operated poppet valves in its intake and return conduits. The quantity of liquid discharged is controlled by a movable cam which determines how long the liquid return conduit is open. A switch operated by a portion of a pu... | 12/02/1980 |
| 4233002 | Fuel injection system The specification describes a distributor apparatus provided with a plurality of distributor valve arrangement in a circular pattern and including valve plungers. The distributor apparatus includes a rotary distributor cam provided with a single distribut... | 11/11/1980 |
| 4199306 | Method and apparatus for compressing gas A method and apparatus for pumping combustible gases at high pressure without raising the gas to its combustion temperature, the apparatus including a piston-type pump having an intake chamber communicating with a cylinder through intake valves, a dischar... | 04/22/1980 |
| 4113410 | Liquid-sealed type vacuum pump A water-sealed type vacuum pump characterized in that a suction pipe connected to a chamber to be vacuumized above liquid containing cylinders, which are provided at the lower portion thereof with a mechanism for alternatively increasing and decreasing a ... | 09/12/1978 |
| 4021155 | Oil burner pumping system with air purging valve A fuel burner pumping system includes a pump having an inlet communicating with a fuel source and an outlet which communicates with a control valve assembly for regulating the pressure of the fuel supplied to the fuel burner nozzle or nozzles through a no... | 05/03/1977 |
