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Class Information
Number: 417/469
Name: Pumps > Expansible chamber type > Moving cylinder > Cylinder and piston reciprocate on common axis
Description: Apparatus in which both the cylinder and the piston have an absolute rectilinear to-and-fro motion along the same fixed axis.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7384249 |
Fluid metering system |
Jun. 10, 2008 |
| 7331768 |
Pump with gauge |
Feb. 19, 2008 |
| 6955531 |
Pump for inflating and deflating an inflatable object with a rotatable nozzle assembly |
Oct. 18, 2005 |
| 6953326 |
Air pump having air cylinder/manual dual charging mode |
Oct. 11, 2005 |
| 6641766 |
Positive displacement extrusion of viscous material |
Nov. 4, 2003 |
| 6602061 |
Easy-to-hold hand pump |
Aug. 5, 2003 |
| 6565333 |
Fluid discharge apparatus and fluid discharge method |
May. 20, 2003 |
| 6514055 |
Piston pump having a hollow piston |
Feb. 4, 2003 |
| 6325601 |
Manual air pump having selectable high pressure and high volume modes |
Dec. 4, 2001 |
| 6257849 |
Manual air pump having selectable high pressure and high pressure modes |
Jul. 10, 2001 |
| 6220772 |
Fluid-dispensing and refilling system for a power toothbrush |
Apr. 24, 2001 |
| 6135733 |
Manual air pump having selectable high pressure and low pressure modes |
Oct. 24, 2000 |
| 6132189 |
Combined bicycle tire and air suspension pump with removable pressure gauge |
Oct. 17, 2000 |
| 6099274 |
Pump to surface pump |
Aug. 8, 2000 |
| 6079954 |
Air pumping station for pneumatic toy vehicle |
Jun. 27, 2000 |
| 5873705 |
Tire pump |
Feb. 23, 1999 |
| 5779457 |
Hand pump for pumping air of lower pressure and high pressure |
Jul. 14, 1998 |
| 5651302 |
Actuator pump |
Jul. 29, 1997 |
| 5558504 |
Magnetostrictive pump for applying pastes and adhesives |
Sep. 24, 1996 |
| 5544637 |
Simplified pumps for fuel injection |
Aug. 13, 1996 |
| 5542939 |
Fluid aspiration-collection apparatus |
Aug. 6, 1996 |
| 5518376 |
Combined housing and air pump |
May. 21, 1996 |
| 5443370 |
Two cylinder manual air pump |
Aug. 22, 1995 |
| 5417065 |
Oil pressure device of jack |
May. 23, 1995 |
| 5285932 |
Apparatus for delivering fluids in proportional quantities |
Feb. 15, 1994 |
| 5044900 |
Positive displacement shuttle pump |
Sep. 3, 1991 |
| 4893738 |
Self-aligning positive displacement dispenser |
Jan. 16, 1990 |
| 4840548 |
High pressure plunger pump |
Jun. 20, 1989 |
| 4762474 |
Pump having reciprocating pipe and slidably supported hollow body |
Aug. 9, 1988 |
| 4755113 |
Sleeve pump |
Jul. 5, 1988 |
| 4687408 |
Lock for the transport of bulk material |
Aug. 18, 1987 |
| 4615661 |
Magnetic pump |
Oct. 7, 1986 |
| 4574828 |
Hand held and hand operated pumping and siphoning device |
Mar. 11, 1986 |
| 4534716 |
Down hole pump |
Aug. 13, 1985 |
| 4456438 |
Extrusion device for impregnating a rock formation, preferably for bonding with a liquid synthetic product |
Jun. 26, 1984 |
| 4334833 |
Four-stage gas compressor |
Jun. 15, 1982 |
| 4326840 |
Wave driven pump |
Apr. 27, 1982 |
| 4313716 |
Articulated, energy converting structure |
Feb. 2, 1982 |
| 4307997 |
Free piston inertia compressor |
Dec. 29, 1981 |
| 4274559 |
Pump for pumping viscous mixtures |
Jun. 23, 1981 |
| 4174194 |
Reciprocating pump |
Nov. 13, 1979 |
| 4173451 |
Downhole pump |
Nov. 6, 1979 |
| 4173435 |
Plunger pump |
Nov. 6, 1979 |
| 4141329 |
Internal combustion engine fuel injection system |
Feb. 27, 1979 |
| 4131397 |
Pumps |
Dec. 26, 1978 |
| 4102611 |
Plunger pump |
Jul. 25, 1978 |
| 4043711 |
Lubricating oil pump |
Aug. 23, 1977 |
| 4036564 |
Concrete pumping apparatus |
Jul. 19, 1977 |
| RE28880 |
Printing machines feed mechanism |
Jun. 29, 1976 |
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