Patents in subclass Pumps/Biased Rollers Or Slides
Parent class: Pumps
| Number | Patent title | Issue Date |
|---|---|---|
| 07168930 | 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 16 and backing plate... |
01/30/2007 |
| 07150607 | 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... |
12/19/2006 |
| 07037092 | 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... |
05/02/2006 |
| 07011387 | 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... |
03/14/2006 |
| 06872059 | 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 4A so that the balls... |
03/29/2005 |
| 06743204 | 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... |
06/01/2004 |
| 06736617 | 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... |
05/18/2004 |
| 06733255 | 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... |
05/11/2004 |
| 06733476 | 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... |
05/11/2004 |
| 06645176 | 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... |
11/11/2003 |
| 06641249 | 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... |
11/04/2003 |
| 06626867 | 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... |
09/30/2003 |
| 06599106 | 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... |
07/29/2003 |
| 06551080 | 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... |
04/22/2003 |
| 06494693 | 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... |
12/17/2002 |
| 06203296 | 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... |
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... |
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... |
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... |
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,... |
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... |
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... |
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... |
04/21/1998 |