Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 7172200 | Sealing arrangement on piston rods A sealing arrangement on piston rods with a rod guided in a cylindrical compressed-gas space, particularly on piston rods of high-pressure pneumatic springs or gas-filled shock absorbers, with at least one seal disposed on the piston rod for sealing the compressed-g... | 02/06/2007 |
| 6863510 | Vacuum preventing oil seal for scroll compressor Disclosed is a vacuum preventing device for a scroll compressor comprising: a chamber formed at one side of a fixed scroll and having a suction hole, a compression hole, and a discharge hole at an inner circumference surface thereof; an open/close member installed i... | 03/08/2005 |
| 6598512 | Piston pump The invention relates to a piston pump, for instance for an electrohydraulic vehicle brake system. The invention proposes that a pump piston, on an end toward an eccentric element, be sealed off with a sealing ring, such as a quad ring, that has two axial... | 07/29/2003 |
| 6506032 | Linear compressor An object of the present invention is to provide a high-efficiency and reliable linear compressor in which even when a pressing force is applied to its piston, the piston is turnably connected and supported through a connecting rod so that sliding surface... | 01/14/2003 |
| 5086691 | Gas compression device having isolated compression and lubrication chambers A high-performance, robust gas-compression device of long-term reliability is adapted in particular for storing nitrogen gas under compression, and includes a substantially cylindrical body (1), a piston (4) partially projecting into the gas-storage chamb... | 02/11/1992 |
| 4991495 | Pump-actuating mechanism In order to increase the delivery pressure of the reciprocating pump-actuating mechanism of hydraulic feed pumps having a high pumping capacity, stacks of thin spacer discs are provided on either side of a sealing ring sealingly engaged in a sealing posit... | 02/12/1991 |
| 4944498 | Gas spring In a gas spring the piston rod is guided through one end of a container. Adjacent to this one end two sealings are provided in axial direction one behind the other, namely an axially outer sealing and an axially inner sealing. A liquid chamber is defined ... | 07/31/1990 |
| 4870821 | Reciprocation apparatus with sealing mechanism In a sealing mechanism for a reciprocation apparatus for use in a cycle engine having a reciprocation member (108), such as Stirling engine, oil or a fluid is enclosed in a fluid room constituted by a pair of flexible partioning members (112, 113) such as... | 10/03/1989 |
| 4858439 | Device for varying a stroke A stroke variable device comprising a large diameter cylinder and a small diameter cylinder which are interconnected to each other. A large diameter piston and a small diameter piston are slidably inserted into the large diameter cylinder and the small di... | 08/22/1989 |
| 4856414 | Viscoelastoplastic-sealant packed flexible power transmission cable for hydraulic actuator A method of packing elongated porous bodies moved between zones of different pressure, wherein the porous body (T) reciprocates through a pressurized packing agent (M). The packing agent is thixotropic and is supplied continuously to the porous cable (T) ... | 08/15/1989 |
| 4769992 | Reciprocation apparatus with sealing mechanism In a sealing mechanism for a reciprocation apparatus for use in a reciprocating engine having a reciprocation member (108), such as Stirling engine, oil or a fluid is enclosed in a fluid room constituted by a pair of flexible partioning members (112,113) ... | 09/13/1988 |
| 4767290 | Fluid pump A self-priming pistonless lift pump has a first elongate tubular cylinder within which a second elongated tubular cylinder is loosely contained and freely slidable, the respective cylinders having inlet valves at their lower ends, and at their upper ends ... | 08/30/1988 |
| 4729238 | Device for measuring the volume of a gas A device for measuring the volume of a gas comprises a cylinder and a piston movably mounted in the cylinder. A first membrane sealingly connects the piston with the inner wall of the cylinder. The cylinder, the piston and the first membrane determine a m... | 03/08/1988 |
| 4691620 | Self-flushing fluid seal assembly A self-flushing fluid seal assembly is provided to prevent particle intrusion into the main seal around a slurry pump shaft. The assembly includes an annular tube concentrically disposed about the pump shaft and forming a chamber. The volume of the chambe... | 09/08/1987 |
| 4612957 | Vacuum pump and trap combination A vacuum pump and trap combination in which the trap is configured in the manner of a siphon and comprises a tube immersed in trap liquid but having an opening lying above the trap liquid level. The tube has a wall section lying below the trap liquid leve... | 09/23/1986 |
| 4485628 | High temperature engine and seal A method and apparatus for protecting a relatively low temperature rated pressure seal from a relatively high temperature gas residing between a cylinder head and its associated piston. A low temperature rated pressure seal as for example an elastomeric s... | 12/04/1984 |
| 4321856 | Diaphragm pulser In a pulser for transmitting the reciprocating motion of a piston to a fluid contained in a chamber such as a solvent extraction column, at least one pulsation diaphragm having the shape of a hollow torus is joined to the piston and to a rim of the duct i... | 03/30/1982 |
| 4207807 | Plastic air cylinder assembly A plastic air cylinder assembled by the specific combination of a plurality of metal tie rods, inside and outside nuts, a resilient and compressible member and supporting plates whereby the plastic cylinder tube is permitted to expand more than the metal ... | 06/17/1980 |
| 4156584 | Liquid cryogen pump A liquid cryogen pump in which liquid is maintained on both sides of the pump piston during operation. In the preferred embodiment, vapor, when present in the pump chamber, is passed from in front to behind the piston by providing a predetermined clearanc... | 05/29/1979 |
| 4040773 | Oil-water interface control for submersible electric motor Submersible electric motors, i.e., those which operate in water or brine wells, are protected against the entry of the well liquid which may contain foreign matter by being submersed in a neutral liquid, such as refined oil. Apparatus is provided which in... | 08/09/1977 |
| 4036112 | Rolling diaphragm sealing devices A sealing device between a reciprocator and a stationary encircling housing comprises first and second rolling diaphragms at opposite ends of the reciprocator and exposed to higher and lower pressures, respectively, diaphragm-supporting liquid in first an... | 07/19/1977 |
| 3934480 | Rolling diaphragm seal between two relatively moving parts A connection of a rolling diaphragm to the inner one of two coaxially arranged piston and cylinder elements, the diaphragm having a thickened end accommodated in a groove in the wall of an annular face of the piston. An elastic ring clamped about the pist... | 01/27/1976 |
