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 |
| 7434312 | Method for manufacturing an implantable drug delivery device with peristaltic pump having a retractable roller An implantable drug infusion device includes a pump tube for holding a liquid to be pumped. A race is configured to support the pump tube. A roller assembly is configured to compress the tube against the race at one or more points along the path, and the roller asse... | 10/14/2008 |
| 7341577 | Implantable drug delivery pump The pump includes a metering pump including a rotor, at least two lengths of tubing against which the rotor is movable to urge the drug therethrough, and an outlet port associated with each of the at least two lengths of tubing. In this way, a drug may be supplied t... | 03/11/2008 |
| 7217108 | Peristaltic hose pump The hose pump comprises an eccentric drive with numerous eccentric discs (21) fastened to a shaft (20). Each eccentric disc (21) drives a crank drive (24) having a connecting rod (25). At the end of the connecting rod (25), ... | 05/15/2007 |
| 7168930 | Peristaltic pump with air venting via the movement of a pump head or a backing plate during surgery A peristaltic pump 10 for use in ophthalmic surgery includes a housing 12, a pump head 14 having plurality of rollers 16, a backing plate 18 attached to the housing 12, and a length of surgical tubing 50. The rollers ... | 01/30/2007 |
| 7150607 | Uniform flow displacement pump A displacement pump comprising a pump assembly and a cassette assembly. The pump assembly includes upper and lower housing portions that define a cavity, an arm disposed in the cavity, a roller attached to the distal end of the arm, and a motor attached to the proxi... | 12/19/2006 |
| 7037092 | Roller pump with housing having integrated reduction gear housing A roller pump comprises a pump housing having a cylindrical inner surface, a rotor fixed to a drive shaft placed at the central portion of the pump housing, rollers provided around the rotor and a driver for driving the drive shaft through a reduction gear. The roll... | 05/02/2006 |
| 7011387 | Tube pump, discharge recovering apparatus and ink jet recording apparatus An ink jet recording apparatus includes a tube pump for generating negative pressure in a tube, the tube pump being provided with a tube disposed along an arcuate guide portion, a pressing roller for squeezing the tube, a rotary member to which the pressing roller i... | 03/14/2006 |
| 6918748 | Tube pump A tube pump (1A) of the present invention is provided with a main body (2) to which a tube (100) is attached, a rotor (5), an oscillator (6) located so as to touch an outer circumferential face of the rotor (5), and a plural... | 07/19/2005 |
| 6872059 | Liquid discharger and apparatus including the liquid discharger A liquid discharger 1A has a base 2A where a resilient tube 100 is disposed in a tube guide groove 211A. A retainer 4A is rotatably provided at the base 2A, with a plurality of balls 5 being mounted at the retainer | 03/29/2005 |
| 6743204 | Implantable drug delivery device with peristaltic pump having retracting roller An implantable drug infusion device includes a pump tube for holding a liquid to be pumped. A race is configured to support the pump tube. A roller assembly is configured to compress the tube against the race at one or more points along the path, and the roller asse... | 06/01/2004 |
| 6736617 | Peristaltic pump having automatically adjusting bushing A roller pump includes a stator, a rotor assembly including a rotor hub, a first roller slide and a second roller slide slidingly disposed within the rotor hub, with each of the roller slides supporting a roller. At least one adjustable bushing is mounted within at ... | 05/18/2004 |
| 6733255 | Tube pump and ink jet recording apparatus using the tube pump A groove wall of a roller support groove opened to both end faces of a pump wheel comprises such a cam face wherein a roller rotates and rolls and is displaced from release operation position a to pump operation position b with rotation of the pump wheel in a pump o... | 05/11/2004 |
| 6733476 | Implantable drug delivery device with peristaltic pump having a bobbin roller assembly An implantable drug infusion device includes a pump tube for holding a liquid to be pumped. A race is configured to support the pump tube. A roller assembly is configured to compress the tube against the race at one or more points along the path, and the roller asse... | 05/11/2004 |
| 6645176 | Spring loaded implantable drug infusion device An implantable drug infusion device includes a pump tube for holding a liquid to be pumped. A race is configured to support the tube. A roller assembly is configured to compress the tube against the race at one or more points along the path, and the rolle... | 11/11/2003 |
| 6641249 | Recovery unit and ink jet recording apparatus A recoverying unit for maintenance and recovery of ink ejection performance of an ink ejecting device includes an elastic tube; a guide member for supporting the tube; a roller for pressing the tube; and a roller holding member, wherein the roller holding... | 11/04/2003 |
| 6626867 | Implantable drug infusion device with peristaltic pump using tube guides An implantable drug infusion device includes a pump tube for holding a liquid to be pumped. A race is configured to support the tube. A roller assembly is configured to compress the tube against the race at one or more points along the path, and the rolle... | 09/30/2003 |
| 6599106 | Tube pump and ink jet recording apparatus incorporating the same In a tube pump, a rotor is fixed to a drive shaft so as to rotate therewith. A tube pressing member is swingable in an axial direction of the drive shaft. A swinging member swings the tube pressing member in accordance with the rotation of the rotor. An u... | 07/29/2003 |
| 6551080 | Unsynchronized phase operation of peristaltic pump rollers A peristaltic fluid pump having a suction side and a pumping side. The pump includes a pump housing having a mainly arcuate support surface, a flexible tube extending along this surface, a rotor having two opposite rollers for during operation rolling ove... | 04/22/2003 |
| 6494693 | Peristatic pump An improved peristaltic pump using a pumptube comprising a single tube of a relatively rigid and hard fluoroplastic material, preferably relatively rigid and hard polytetrafluoroethylene (PTFE), and a roller strap located between the pressure rollers of t... | 12/17/2002 |
| 6203296 | Miniature peristaltic pump A miniature peristaltic pump includes a rotor with three turning rollers, a support piece with a rounded portion arranged substantially concentric to the rotor and against which, when operating, the rollers are brought to compress a flexible tubing connec... | 03/20/2001 |
| 6102678 | Peristaltic pump The invention is a peristaltic pump having a particularly simple construction and a low axial bulk. The pump (1) includes a rotor (20) having rollers (21,22,23) which roll against a tube (14) containing the liquid to be pumped. The compression of the tube... | 08/15/2000 |
| 6062829 | Peristaltic pump A peristaltic pump has a fixed support, a rotor rotatable about a rotor axis on the support, and a plurality of rollers mounted on the rotor rotatable about respective roller axes angularly equispaced about and radially equispaced from the rotor axis. A s... | 05/16/2000 |
| 6036459 | Occlusion compensator for implantable peristaltic pump A peristaltic pump which may be used as an implantable medical device includes a rotor arm that is provided with a means for applying a regulated occluding force to the pump rollers. In a preferred embodiment, an expandable chamber containing a pressurize... | 03/14/2000 |
| 6029688 | Water wheel for pumping chemical treatment into water stream The invention is a water wheel supplying energy to a pump. The pump will typically be used to apply chemical treatments to the water stream. Some examples of chemicals to be added are acids or bases to bring the pH to an acceptable level, precipitation ai... | 02/29/2000 |
| 6030190 | Rotary displacement pump A rotary displacement pump has a stator having a base plate and two clamping plates. The base plate is clamped between the two clamping plates. A first clamping plate forms an outer wall of the pump. The base plate has an annular surface extending over a ... | 02/29/2000 |
| 5759017 | Peristaltic pump and tube loading system A peristaltic pump and tube body system disclosed includes a pump housing, a pump rotor rotatably mounted in the housing, and a motor for driving the rotor. The housing has a pair of opposed side walls hinged and releasably latched to the housing whereby ... | 06/02/1998 |
| 5741125 | Peristaltic pump device having an insert cassette of reduced complexity The invention relates to a peristaltic pump system. The pump system comprises both an insert (10) and a motor assembly (30). The insert essentially comprises a wall (16) and a duct (22) of deformable material. The motor assembly comprises a drive shaft (3... | 04/21/1998 |
| 5657000 | Peristaltic pump occlusion detector and adjuster An method and apparatus for determining a degree of occlusion in the tubing loop disposed in the raceway of a peristaltic pump. An electrical circuit is formed in tubing loop by filling the loop with an electrically conductive fluid, such as blood, and el... | 08/12/1997 |
| 5470210 | Product filling assembly A product filling assembly includes a rotary member which has two discs mounted for rotation on a common central shaft and a plurality of additional shafts and rollers positioned between the discs so that a circumferential portion of each roller extends b... | 11/28/1995 |
| 5462417 | Peristaltic pump with linear pump roller positioning mechanism A peristaltic pump has a pump rotor rotatable about an axis. The pump rotor carries a pump roller. An actuating rod extends along the axis of rotation. The rod has a distal end and a proximal end. An actuator mechanism is coupled to the proximal rod end f... | 10/31/1995 |
| 5415532 | High effieciency balanced oscillating shuttle pump A pump and a method for pumping liquid or fluid through a pair resilient es includes a shuttle block which partially compresses the tubes in a balanced, alternating manner. The resilient tubes are held in a parallel relationship with a predetermined spac... | 05/16/1995 |
| 5263831 | Peristaltic pump A peristaltic pump for providing enhanced maintenance of a position of an interface between a substantially flexible tube and at least one roller which compressively engages such tube. In one embodiment, two rollers are incorporated on a rotor and are bia... | 11/23/1993 |
| 5154357 | Peristaltic voltage blocks A coating material dispensing system comprises an electrostatic high potential supply having an output terminal on which the supply maintains a high electrostatic potential, a source of coating material, and a dispenser for dispensing the coating material... | 10/13/1992 |
| 5110270 | Peristaltic pump with spring means to urge slide members and attached rollers radially outward on a rotor A peristaltic pump has a compressible tube curved about ninety degrees around a rotor with four sets of slider arms having rollers at their outer ends extending slidably radially out from the rotor with the sliders being spring-biased outward to cause the... | 05/05/1992 |
| 5033942 | Peristaltic voltage block roller actuator A peristaltic voltage block for use in systems for electrostatically aided atomization and dispensing of conductive coating materials includes a resilient, electrically non-conductive conduit arranged in multiple loops on a support mechanism. The voltage ... | 07/23/1991 |
| 5024586 | Accurate peristaltic pump for non elastic tubing A peristaltic pump which corrects the effects of creep on a peristaltic tube. A plurality of spring biased rollers apply a substantially constant force to pinch the tube. A pair of elastic semi-circular sections are retained throughout the entire semi-cir... | 06/18/1991 |
| 5009573 | Variable occlusion peristaltic apparatus and method A variable occlusion device includes a device housing having an occlusion track adapted to receive one or more loops of flexible tubing and having an arcuate reactive surface. The device also includes a rotor member mounted for rotation within the housing... | 04/23/1991 |
| 4950136 | Peristaltic pump A peristaltic pump includes rotor-mounted rollers biased apart and having end steps for engaging corresponding cam surfaces on the pump body and cover to direct non-pumping rollers in a predetermined path and maintain a constant tube engaging pressure on ... | 08/21/1990 |
| 4705464 | Medicine pump Low power peristaltic medicine pump and filter for infusion of medicinal solutions. The pump includes a pump housing, a low durometer PVC pump tube; fit within an interior circular groove of the pump housing, tube slots, a rotor cavity within the walls of... | 11/10/1987 |
| 4573884 | Peristaltic pump Peristaltic pump including a housing having a backing plate and an upstanding arcuate wall, a pump shaft mounted in the backing plate, and a rotatable pump head mounted on the shaft and comprising at least one roller means for squeezing a segment of flexi... | 03/04/1986 |
