Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7591639 | Peristaltic pump A peristaltic pump includes a plurality of occlusion surfaces and a plurality of rotors. The plurality of occlusion surfaces include a first occlusion surface and a second occlusion surface. The plurality of rotors includes a first rotor configured to be rotated abo... | 09/22/2009 |
| 7261008 | Air sampler An air sampler having a fan; an air inlet tube; a main body having a cyclonic cup, a stripping column and a demister; and fluidic circuitry for inputting fluids to the main body and the air inlet tube, and for outputting fluids from the main body. Air flow through t... | 08/28/2007 |
| 7252485 | Tube type pumping apparatus A tube type pumping apparatus having a resilient tube provided along a wall, a squeezing member positioned to move along the wall to squeeze the resilient tube against the wall, a squeezing member holder that holds the squeezing member; a cam member whose surface re... | 08/07/2007 |
| 7223079 | Quick loading peristaltic pump A peristaltic pump for transporting a fluid within a flexible tube having a first end, a middle portion, and a second end. The peristaltic pump may include a roller assembly positioned for rotation, a first door positioned adjacent to the roller assembly and pivotab... | 05/29/2007 |
| 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 |
| 7104769 | Peristaltic pump and method with parking position A peristaltic pump device and method includes at least one roller of a rotor rotatable with respect to an occlusion with a substantially constant radius. A depression is formed in the occlusion and extends beyond the substantially constant radius of the occlusion. | 09/12/2006 |
| 7036751 | Pump operated spraying device A water gun and a watering container using an electrically operated peristaltic pump for pumping water through a nozzle located at the end of a tube connecting a reservoir with an outlet opening. The pump is electrically controlled by a trigger mechanism in a handle... | 05/02/2006 |
| 6769885 | Peristaltic pump, use of said pump, guide path for use in a peristaltic pump and a method of lubricating a peristaltic pump A peristaltic pump (6) for pumping viscous media, comprises a housing (6A, 6B) having a wall (12) against which a hose (25) is placed, a shaft (7) that is centrally positioned in the housing and that carries a roller arm ( | 08/03/2004 |
| 6749410 | Peristaltic pump having a variable effective radial length impeller for metering liquid chemicals A flexible apparatus for metering agricultural chemicals in a wet blade chemical distribution system consists of a modular peristaltic pump delivery apparatus (24) having an impeller (38) and a mounting bore (30) in a computer-controlled servome... | 06/15/2004 |
| 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 |
| 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 |
| 6607363 | Magnetic detent for rotatable knob A roller pump including a stator and a rotor assembly disposed within the stator. The rotor assembly includes a rotor hub, a first roller slide and a second roller slide slidingly disposed within the rotor hub. Each of the roller slides rotatably supports... | 08/19/2003 |
| 6203295 | Ink-jet recording device and pump used therein A pump 15 disposed in an ink-jet recording device has flexible tube 103 and guide member 106 whereon a prescribed part of the tube is mounted. Roller 105, of which there is at least one and which pressurizes and deforms tube 103, is supported by lever 107... | 03/20/2001 |
| 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 |
| 6082977 | Ink-jet recording device and pump used therein A pump 15 disposed in an ink-jet recording device has flexible tube 103 and guide member 106 whereon a prescribed part of the tube is mounted. Roller 105, of which there is at least one and which pressurizes and deforms tube 103, is supported by lever 107... | 07/04/2000 |
| 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 |
| 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 |
| 6019582 | Peristaltic pump having an elastic adjustable rotor body A peristaltic pump includes a rotor (21) comprising a hub (211), an actuating part (214) mounted on the hub (211) for operative engagement with a flexible tube (7) of the pump, the actuating part (214) being radially displaceable relatively to the hub (21... | 02/01/2000 |
| 5915932 | Peristaltic pump having a roller support The rollers of a peristaltic pump are supported to prevent said rollers from compressing said tube more than the thickness of the walls of the tube. A tube holder rotates along with the roller assembly of the peristaltic pump and keeps the tube in line wi... | 06/29/1999 |
| 5586872 | Adjustable peristaltic pump The invention relates to a pump for biological fluids, for example for blood transference by pump. The pump according to the invention comprises a housing (1) in which there are placed at least one resilient tube (3) for passing biological fluid, and an o... | 12/24/1996 |
| 5586873 | Tube pump with retractable rollers A tube pump is disclosed for conveying liquid or viscous media, with a pump head on which at least two pump rollers are arranged, which rollers can be brought into engagement in succession with a tube wherein the medium to be conveyed is contained, in suc... | 12/24/1996 |
| 5549458 | Peristaltic pump with quick release rotor head assembly A peristaltic pumping apparatus includes a pump rotor carrying a roller and a drive mechanism for rotating the rotor. The drive mechanism includes a carrier for holding the pump rotor. The apparatus includes a release pin mechanism carried on the pump rot... | 08/27/1996 |
| 5486854 | Ink jet recording apparatus An ink jet recording apparatus for forming a record by discharging ink from a recording head onto a recording material, has a tube pump for ink discharge recovery, by suction or pressurization, through deformation, with pressure rollers, of plural tubes c... | 01/23/1996 |
| 5484239 | Peristaltic pump and valve assembly for fluid processing systems A peristaltic pump includes a pump race for receiving a flexible tubing. A rotatable pump rotor carries at least one roller for contacting the tubing. A roller locating mechanism moves the pump roller between a retracted position free of contact with the ... | 01/16/1996 |
| 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 |
| 5445506 | Self loading peristaltic pump tube cassette A self-loading peristaltic pumping apparatus includes a pump race for receiving a tubing loop, a pump rotor carrying a roller, and a drive mechanism for rotating the rotor within the pump race. The apparatus also includes a roller locating mechanism that ... | 08/29/1995 |
| 5429486 | Single roller blood pump and oxygenator system A pump and pump/oxygenator system including a generally cylindrical pump housing, a tube arranged in a helical turn within the pump housing, and a rotor assembly rotatably mountable in the housing for pumping fluid through the tube by peristaltic action. ... | 07/04/1995 |
| 5372486 | Peristaltic pump In a peristaltic pump having a pump tube with an elastically deformable wall, which tube is arranged in a pump housing and has externally accessible connection ends and is fitted into the pump housing with a region which is curved in part-circular configu... | 12/13/1994 |
| 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 |
| 4720249 | Peristaltic pump with enhanced tube loading features A peristaltic pump of the type in which a motor-driven hub rotates hub-carried rollers in stressing engagement against to compress a fluid-carrying tube seated in the pump, thereby to propel the liquid through the tube. The pump is characterized in that t... | 01/19/1988 |
| 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 |
| 4568255 | Peristaltic roller pump The Specification discloses an improved peristaltic Roller Pump for pumping fluids through a flexible tubing. First and second surge release radii are formed on a semicylindrical reaction wall to minimize back surge or fluctuations in pump line pressure a... | 02/04/1986 |
| 4548553 | Peristaltic pump structure This invention relates to a peristaltic pump structure in which the improvement consists of provision for substantial adjustment in the size of the passage receiving a tube member and in providing for an external control of the positioning of the rollers ... | 10/22/1985 |
| 4487558 | 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... | 12/11/1984 |
| 4484864 | Peristaltic pump The invention relates to the means provided in a peristaltic pump to regulate the radial distance between a crushing roller and the axle of rotation of the rotor. The rotor comprises at least one reference face parallel to its axle of rotation, the regula... | 11/27/1984 |
| 4441867 | Peristaltic pump To permit two different fluent media to be pumped independently of each other in one and the same peristaltic pump, a single reversible motor 3 is connected to at least two rotors 7,8 respectively passing over an associated separate resiliently compressib... | 04/10/1984 |
| 4424011 | Painting applicator with remote supply A paint roller is provided with a removable sleeve receiving a cover having a pile on a stretchable flexible backing. A reversible, speed controllable pump on a hand cart provides paint to the roller from a supply under control of a switch at the roller h... | 01/03/1984 |
| 4392794 | Peristaltic pump A peristaltic pump having a housing which is formed with an annular recess which has an arcuate cross-sectional configuration, is provided with a conduit extending within the recess. The conduit has a back wall shaped to conform to the cross-sectional con... | 07/12/1983 |
