Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7866960 | Peristaltic pump A hose compressed peristaltic pump is provided. The pump includes a base, a sidewall structure mounted on the base, and forming a containing space therein, a rotor having a center in the space and further having plural integral protrusions, and a hose disposed betwe... | 01/11/2011 |
| 7713036 | Roller-type liquid pumping apparatus with improved installation capability A liquid pumping apparatus comprising a rotor housing, a rotor having at least one roller, to be rotated by a prime mover, an inner periphery wall of the rotor housing, a flexible tube to be inserted into a gap formed between the rotor and the inner periphery wall a... | 05/11/2010 |
| 7287968 | Peristalic pump having hinged backing plate A peristaltic hose pump comprising a roller wheel, which can rotate about a roller wheel axis and which has rollers that are mounted on the roller wheel. The rollers roll along a circular path having a certain radius with respect to the roller wheel axis. The perist... | 10/30/2007 |
| 7059840 | Energy-saving, anti-free flow portable pump for use with standard PVC IV tubing An apparatus for pumping fluid through tubing comprising a stop platen is disclosed. The stop platen is operatively arranged to depress a wall of the tubing along a section of a longitudinal axis of the tubing. The stop platen is narrower than the tubing along a tra... | 06/13/2006 |
| 6962488 | Surgical cassette having an aspiration pressure sensor A cassette having a molded flow channel contained on an elastomeric sheet that is bonded or mechanically attached to a rigid substrate. The flow channel projects outwardly from the exterior of the cassette so that a peristaltic pump having pump head rollers mounted ... | 11/08/2005 |
| 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 |
| 6811386 | Peristaltic pump with preformed tube A peristaltic pump mechanism comprises a base plate (11) having a generally planar surface for supporting a pump tube (12) to extend at least partially around a circular path defined on said surface, an operating section (10) connectable to the ... | 11/02/2004 |
| 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 |
| 6296460 | Rotary cavity pump A pump housing supports a plurality of pump segments each having a raised pump cavity enclosed by a resilient diaphragm sealed to the pump cavity. A compression plate supports a plurality of rollers against the pump segments. The compression plate is rota... | 10/02/2001 |
| 5963227 | Ink jet recording apparatus An ink jet recording apparatus, including a plurality of recording heads each having an ink outlet, a liquid passage communicating with the outlet and an ejection energy generating element for generating energy for ejecting ink through the outlet; a refre... | 10/05/1999 |
| 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 |
| 5173038 | Peristaltic pump A peristaltic pump, which includes a flexible tube arranged along a circular path and in which a compression member is driven by an electric motor via a gearing, is to be compact and easy to manufacture, so that it can be produced at such a low cost as to... | 12/22/1992 |
| 4954055 | Variable roller pump tubing A variable diameter tube for use with a roller pump which is formed with a central large diameter section that is positioned in the roller pump raceway. This tube is formed with two end portions of substantially similar internal diameter with the diameter... | 09/04/1990 |
| 4923375 | Hose pump, in particular an insulin pump A hose pump (1) consisting of a hose (2), at least one, preferably two pressure rollers (3,4), a support plate (9) and a drive source (26). The hose (2) is paced in a hose receiving track (6) in the support plate (9). The rollers (3,4) are rotatably journ... | 05/08/1990 |
| 4832585 | Roller pump having force transmitting means A roller pump is provided with a driving mechanism; a rotating shaft rotatably driven by the driving mechanism; a pump head that includes a sleeve which is unrotatably arranged in the outer periphery of the rotating shaft, and through which the rotating s... | 05/23/1989 |
| 4730993 | Squeeze pump A squeeze pump comprising: a casing having an arcuate inner peripheral surface; a resilient tube bent arcuately in the casing and having opposite ends projecting outwardly from the casing through openings therein; a rotary shaft disposed in an axis of the... | 03/15/1988 |
| 4632646 | Squeeze pump A squeeze pump adapted to transfer a slurry with solid materials comprises a resilient tube at least partly curved along an imaginary circle, a rotary arbor situated in the center of the imaginary circle so that the curved portion of the resilient tube is... | 12/30/1986 |
| 4586882 | Tubing occluder pump A tubing occluder pump is provided that includes a structure for occluding flexible tubing that distributes a relatively low amount of force at the transverse center portion of the tubing during occlusion and a relatively large force at the distal transve... | 05/06/1986 |
| 4558996 | Easy load peristaltic pump There is provided a peristaltic pump which has a base member and a rotor attached to the base member. The rotor is adapted to receive a resilient collapsible tube. The pump further includes a stator having a fixed member disposed in a permanent position r... | 12/17/1985 |
| 4549860 | Blood pump improvements The main application of this pump is for human heart coronary bypass, cardiac and transplant surgery. A non-occlusion blood pump of peristaltic type and blood pump tube element with pulsating pressure pump delivery, giving similar momentum to blood flow a... | 10/29/1985 |
| 4547136 | Variable displacement peristaltic pump A variable displacement peristaltic pump includes an stator carrying a flexible resilient tube, and a spoke-like array of pinch rollers for cooperation with the flexible tube. The rollers extend radially of the axis of a driven rotor, the stator and tube ... | 10/15/1985 |
| 4545744 | Peristaltically operating roller pump A roller pump (1) comprises a stator member (2) in which a pump bed (3) is formed with specific geometry. In the interior of the pump bed (3) a rotor (6) is rotatably mounted. A pump hose (10) can be inserted into the pump bed (3), said hose being curved ... | 10/08/1985 |
| 4512726 | Pump adaptable for use as an artificial heart A pump adaptable for use as a human heart includes first and third pump chambers separated from an intermediate second chamber which may house a motor. The chambers are separated by diaphragms which may be alternately driven. A pump is achieved which need... | 04/23/1985 |
| 4492538 | Squeeze pump There is disclosed a squeeze pump in which a resilient tube (15) disposed arcuately in a pump casing (11) is pressed by presser rolls (25) rotatable about their own axes and about a common axis simultaneously, thereby to continuously feed the slurry conta... | 01/08/1985 |
| 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 |
| 4363609 | Blood pump system A blood pump system in which a roller pump is provided for pumping blood through a flexible tube. A low voltage D.C. motor is provided having an output shaft. An electrical control circuit is connected to the motor for applying the necessary voltage to dr... | 12/14/1982 |
| 4221543 | Bloom pump system A blood pump system in which a roller pump is provided for pumping blood through a flexible tube. A low voltage D.C. motor is provided having an output shaft. An electrical control circuit is connected to the motor for applying the necessary voltage to dr... | 09/09/1980 |
| 4201525 | Peristaltic pump A peristaltic liquid pump in which a box-like housing encloses a rotatable head carrying a pair of rollers which engage a U-shaped portion of plastic tubing carrying liquid to be pumped. The housing has a light-transmissive cover member enabling the opera... | 05/06/1980 |
| 4095923 | Peristaltic pump with accommodating rollers The rollers of a peristaltic pump are provided with an unyielding surface, so as to insure uniform compression of the pumped tube. The rollers are mounted on their driving axles by means including yielding rubber bushings, whereby the rollers accommodate ... | 06/20/1978 |
