Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 7210463 | Pump, especially for a fuel injection device for an internal combustion engine A pump having least one pump element with a pump piston guided in a sealed fashion in a cylinder bore (26) of a housing part delimiting a pump working chamber in the cylinder bore, and driven into a stroke motion. The working chamber is connected to an inlet ... | 05/01/2007 |
| 7134846 | Radial piston pump with eccentrically driven rolling actuation ring An hydraulic head features two or three individual radial pumping pistons and associated pumping chambers, annularly spaced around a cavity in the head where an eccentric drive member with associated outer rolling actuation ring are situated, whereby a rolling inter... | 11/14/2006 |
| 6979184 | Manual negative pressure pump device A manual negative pressure pump device comprises a suction cylinder, a handle, a pull, a piston, and an expandable spring which forms a vacuum absorbing device. A front end of the suction cylinder is a thread post with outer thread. The thread post has a central thr... | 12/27/2005 |
| 6959694 | Fuel injection system for an internal combustion engine The fuel injection system has a high-pressure pump which pumps fuel into a reservoir to be supplied to injectors disposed at the engine cylinders. A feed pump supplies fuel to the high-pressure pump. The high-pressure pump has at least one pump element including a p... | 11/01/2005 |
| 6960068 | Center valve sleeve retention system for an oscillating pump A pump (10) includes an impeller (12) positioned in a housing (11). A valve assembly (13) is positioned within a valve sleeve (25) which is carried by the impeller (12). The impeller (12) is carried by an armature ( | 11/01/2005 |
| 6843645 | Cooling system for a magnetic pump A magnet pump includes a synthetic resin casing, divided into a front casing and a rear casing and configured to internally form an impeller housing chamber and a magnet can housing chamber contiguous thereto, having an inlet and an outlet for a target fluid to be t... | 01/18/2005 |
| 6837694 | Hydraulic pump unit with orifice plate for vehicle brake control system A hydraulic pump unit for vehicle brake control system comprising a pump housing, a cylinder received in a receiving hole formed in the pump housing. The cylinder has a bottom portion and is provided at the bottom portion with an outlet valve. A plunger is slidingly... | 01/04/2005 |
| 6764286 | Piston pump with pump inlet check valve A piston pump comprises cylinder attached within a cavity of a pump housing. An outlet check valve seat is defined about an outlet of the cylinder. A piston is slidably received in a bore of the cylinder and has a first passageway formed therein. A cylinder head enc... | 07/20/2004 |
| 6695595 | Pump for pumping at two pressures A pump includes a cylinder, a piston assembly, a first nozzle, a valve, a controller, a ring and a second nozzle. The cylinder defines first and second chambers and first and second channels for communication between the chambers. The piston assembly is r... | 02/24/2004 |
| 6688431 | Lubricant supplying apparatus of reciprocating compressor A lubricant supply apparatus for a reciprocating compressor is provided having a lubricant cylinder fixed to a compressing unit having a lubricant suction passage and oscillating with the compressing unit. A lubricant piston is slidably inserted into the ... | 02/10/2004 |
| 6558142 | High-pressure hydraulic fuel pump The pump (5) has at least one cylinder (6) in which slides a piston (16) moved positively in the compression direction and elastically in the intake direction. A compression spring (26) is located between the shutter (21) of an intake valve (19) and the p... | 05/06/2003 |
| 6540492 | Compressor piston with reduced discharge clearance A compressor piston has protrusions which extend upwardly into discharge ports to minimize clearance at the end of the compression stroke. The protrusions fit into circumferentially isolated discharge ports, and each of the ports are associated with reed ... | 04/01/2003 |
| 6499974 | Piston pump A piston pump having a piston axially movable against the force of a spring within an operating chamber connected via check valves to an operating cylinder and a hydraulic medium supply. A section of the piston that extends into the operating chamber has ... | 12/31/2002 |
| 6471496 | Piston pump for a vehicle brake system To enable economical production of a piston for a piston pump, the piston is made from a tubular deformed part and a closure plug, which is press-fitted with a protrusion into the deformed part. The piston has the advantage that the piston can be made wit... | 10/29/2002 |
| 6457957 | Radial piston pump for generating high fuel pressure Disclosed is a radial piston pump having a longitudinally movable pump piston in a cylinder chamber which communicates with a suction valve. A closing body of the suction valve is loaded by a valve closing spring in the direction of its valve seat affixed... | 10/01/2002 |
| 6450788 | Piston pump for high-pressure fuel delivery Disclosed is a piston pump having a pump housing with a cylinder head comprised of a first plate and a second plate. The plates which rest against each other and are screwed to the pump housing, have a first conduit which carries low-pressure fuel and lea... | 09/17/2002 |
| 6299421 | Oil supply apparatus of linear compressor An oil supply apparatus of a linear compressor including an oil feeder frame having an oil cylinder, an oil suction hole communicated with the oil cylinder and an oil discharge hole; an oil cover combined to the oil feeder frame to cover the oil cylinder ... | 10/09/2001 |
| 6257849 | Manual air pump having selectable high pressure and high pressure modes A manual air pump includes an outer cylinder having a chamber therein, a head provided to a second end of the outer cylinder and including an outlet passage communicated with the chamber for supplying air to an object to be inflated, and an inner cylinder... | 07/10/2001 |
| 5816783 | Electrically driven hermetic compressor An electrically driven hermetic compressor comprises a hermetic casing, an electric motor unit encased in the casing, and a compression mechanism encased by the casing and drivingly connected to the electric motor unit through a crankshaft. The compressio... | 10/06/1998 |
| 5660532 | Multiphase piston-type pumping system and applications of this system A multiphase piston-type pumping system including a feed line (13) for the fluid to be pumped and a discharge line (19) for the pumped fluid, with at least one first variable-volume chamber (2) designed for pumping, the fluid, and with chamber being defin... | 08/26/1997 |
| 5613837 | Air compressor inlet and outlet valve arrangement An air compressor includes a suction space, a compression space and a discharge space that are aligned with one another. The compressor also includes one-way valves that function as a suction valve and a discharging valve. The open areas of the suction va... | 03/25/1997 |
| 5492459 | Swash plate compressor having a conically recessed valved piston A swash plate compressor with single ended pistons improves piston stability by providing the ends of the pistons with open, conical rims, the outer surfaces of the which match, and thereby enlarge, the outer surface area of the pistons. The pistons there... | 02/20/1996 |
| 4995795 | Noise reducing wear shield for piston face A wear shield attached to a piston in a piston type compressor cushioning impact and reducing friction between the piston and a valve which opens in a direction toward the piston. During some conditions of operation, without the wear shield, a piston can ... | 02/26/1991 |
| 4883467 | Reciprocating pump for an implantable medication dosage device A reciprocating pump suitable for use in an implantable medication dosage device has a piston movable in a chamber connected to a medication reservoir, the chamber having an output closable by a check valve. The check valve includes a movable element whic... | 11/28/1989 |
| 4628958 | Ring valve A ring valve apparatus is designed for efficient transfer of liquids and gases and for attaining near-perfect vacuum state of gases. Intake means consist of a flexible ring valve and three ports encompassed by valve seats. Exhaust means include a rigid ri... | 12/16/1986 |
| 4532685 | Method of assembling a reciprocating compressor A method of assembling a reciprocating compressor, in which a piston for partitioning a cylinder into a compression chamber and a suction chamber is telescoped in the cylinder, a closure end plate is secured at an open end of the cylinder, the end surface... | 08/06/1985 |
