Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7258059 | Pressure mediator with separating membrane and method for the production thereof pressure mediator comprising a base body having a membrane bed, wherein said base body has a first material with a first thermal expansion coefficient, in addition to a separating membrane having a second material with a second thermal expansion coefficient that is ... | 08/21/2007 |
| 7100491 | Fluid-powered mechanical actuator and method for controlling A fluid-powered mechanical actuator having a proximal end and a distal end and having a plurality of hollow tubular elements hingedly connected in end-to-end linked relationship to form a variable angle therebetween, each such link having one degree of freedom; prov... | 09/05/2006 |
| 6901840 | Angular actuator and control therefor A fluid-powered mechanical actuator having a proximal end and a distal end and having a plurality of hollow tubular elements hingedly connected in end-to-end linked relationship to form a variable angle therebetween, each such link having one degree of freedom; prov... | 06/07/2005 |
| 6782800 | Diamond-shaped fluid powered linkage, system and engine A fluid powered linkage (12) has at least three side plates (18) of substantially equal width joined by connectors (17) to form a polygon of variable cross sectional area. An upper plate and a lower plate enclose a variable volume within the pol... | 08/31/2004 |
| 6490960 | Muscle-emulating PC board actuator A PC board actuator that emulates a muscle fiber includes a first pressure source, a second pressure source lower than the first source, at least one expansion chamber alternately communicating with the first and second pressure sources, first and second ... | 12/10/2002 |
| 6120264 | Air pump of simple structure An air pump includes a first sheet, a second sheet, an inflation valve and a check valve. The second sheet is directly connected to the first sheet so as to form a chamber. The inflation valve is provided on the chamber to lead air into the chamber when t... | 09/19/2000 |
| 6065289 | Fluid displacement apparatus and method The present invention relates generally to fluid displacement apparatuses and methods. The inventive apparatus comprises: a housing having an interior space; a crankpin positionable in the interior space; and a plurality of articulated displacement member... | 05/23/2000 |
| 5992296 | Hydraulic pump In a hydraulic pump, an elastic sealing member for performing sealing between a cylinder and a slide piston reciprocating in the cylinder is provided in the front end side of the slide piston and along the inner circumferential surface of the cylinder so ... | 11/30/1999 |
| 5860352 | Actuator for generating high regulating forces and large regulating distances The invention relates to an actuator (10) for generating high regulating forces and large regulating distances with a web (12) for the transmission of regulating forces, which actuates an internal pressure, which may be purposefully influenced, in an actu... | 01/19/1999 |
| 5449003 | Undulated container for undulated diaphragm and diaphragm device An undulated diaphragm, which has an approximately circular, flat plate-shaped central portion and a peripheral portion composed of a series of alternate, approximately concentric convex and concave portions, is clamped between two undulated container mem... | 09/12/1995 |
| 5431089 | Force generating mechanism Disclosed is a unique force generating mechanism which is easily adapted for use in a compact lightweight tool requiring high work forces. The mechanism includes a force generating member disposed within an actuation chamber where either pneumatic or hydr... | 07/11/1995 |
| 5297470 | Pneumatic rotary drive A pneumatic rotary drive includes a housing which is connectable to a pressure medium source and is closed in a pressure medium-tight manner by plane covers. A rotatable shaft extends out of the housing through at least one of the covers. A belt which is ... | 03/29/1994 |
| 5230276 | Fluid-driven actuator including an inflatable sac A fluid-driven actuator including a barrier having narrow openings, an inflatable sac having two portions, a first portion including working surface external to the barrier means, and a second portion compactly folded behind the barrier means, and a movab... | 07/27/1993 |
| 5224412 | Belt-driven rotary drive A belt-driven rotary drive having a belt closed upon itself which is connected, within a pressure fluid-tight housing over roller-shaped bodies with the formation of movable pressure chambers, to a rotatable shaft which is extended out of the housing and ... | 07/06/1993 |
| 5219393 | Pressure driven rotary drive A hydraulically operated rotary drive includes a housing which is closed in hydraulically tight manner by flat covers and can be connected to a source of pressure fluid, a rotatable shaft extending through the covers out of the housing and a belt which is... | 06/15/1993 |
| 5083498 | Bendable actuator A bendable actuator includes a tubular body made of an elastic material, a reinforcing braided structure surrounding the tubular body, and closure members closing both open ends of the tubular body and the reinforcing braided structure, respectively. At l... | 01/28/1992 |
| 5033270 | Rotary bellows An actuator, which directly converts fluid pressure to rotary movement, has generally cylindrical and helically fluted circumferential wall, an end wall bearing an output member, and a fixed opposite end wall. The actuator may be a one-shot device providi... | 07/23/1991 |
| 4976191 | Elastically deformable fluid actuator An actuator for use in an arm or hand of an industrial robot comprises a tubular elastic body of which interior is separated into a plurality of pressure chambers by an axially extending partition, and means for adjusting respective pressures of the press... | 12/11/1990 |
| 4890485 | Mechanism which reacts to the presence of oil and/or water A system for the detection of oil or water leakages having a housing with a plurality of openings. The housing is to have a sufficient volume to permit the expansion of an absorbent material when such is placed within it. Additionally the housing is to ha... | 01/02/1990 |
| 4867121 | Piston system for use in an internal combustion engine A piston system for use in an internal combustion engine comprises a flexible piston disposed adjacent a combustion chamber of the engine and a piston drive means movably disposed adjacent the flexible piston such that the drive means can deform the flexi... | 09/19/1989 |
| 4838147 | Pressure fluid actuator A pressure fluid actuator having an elongated tubular chamber, a slot extending longitudinally along the wall of the chamber, a flexible hose member within the chamber and an improved reciprocally movable bracket having an upper portion extended through s... | 06/13/1989 |
| 4766802 | Small-sized engine operated by fluid Small-sized engine operated by an expanding gaseous fluid, which comprises a cylinder (18), a piston (20) and an inlet valve (38), the upper parts of the cylinder (18) and the piston (20) cooperating momentarily with a perforated (29) resilient membrane (... | 08/30/1988 |
| 4756237 | Device for converting energy of fluid medium into mechanical work of working member According to the invention, the device comprises a housing (1), two chambers (2, 3) interconnected through a pipeline (4) and disposed in the housing opposite to each other. Each chamber (2 or 3) has a piston made in the form of an elastic sleeve (10 and ... | 07/12/1988 |
| 4539985 | Aspirator and resuscitator for newborn animals An aspirator and resuscitator for newborn animals comprising a cylindrical accordion bellows and adaptors for removing fluids from the nasal and oral passages and for delivering air to and removing air from the breathing passages. The bellows and an adapt... | 09/10/1985 |
| 4509410 | Variable volume fluid induction and delivery machine A fluid induction and delivery machine having a chamber of variable volume defined by at least one fixed curved wall, a movable wall facing the fixed wall, and parallel fixed flat walls connecting the curved wall and the movable wall, the movable wall hav... | 04/09/1985 |
| 4068675 | Inflatable umbrella An inflatable umbrella comprising a flexible canopy having at least one enclosed space adapted to be filled with a fluid for inflating the umbrella to an open condition. A self-contained compressible reservoir containing a fluid supply communicates with t... | 01/17/1978 |
| 3995535 | Expansible chamber device An expansible chamber device in which a cylinder of preferably rectangular configuration supports a pair of opposing flaps pivotally attached to the corners of the cylinder. The flaps sealably and slidably engage the top surface of a piston disposed withi... | 12/07/1976 |
| 3987767 | Expansible chamber device An internal pressure engine comprises at least three like members called hedrons movable between two parallel end plates. Each of the hedrons has opposite end faces engaging the end plates, an inner face extending between the end faces and a sealing face ... | 10/26/1976 |
