Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 7305916 | Reciprocating-piston machine for motor vehicles A piston compressor has a cylinder including a traveling piston sealed therein. A drive motor acts on a crankshaft, a drive shaft thereof being received by a bore of the crankshaft. A connecting rod provides for articulated connection of a crankshaft-journal of the ... | 12/11/2007 |
| 6401593 | Drive and guide means for a load to be moved A drive and guide means for a load to be moved which comprises a rodless drive piston adapted to be driven by a pressure medium in a pressure medium cylinder, such piston having at least one force transmission part extending outward through a longitudinal... | 06/11/2002 |
| 5404792 | Piston for internal combustion engine A piston for an internal combustion engine comprises at least a pair of ribs arranged between an inner surface portion of a skirt and side portions of pin bosses. The ribs are symmetrical with respect to a thrust center line of the piston and have in a lo... | 04/11/1995 |
| 5245913 | Piston of internal combustion engine A piston of an internal combustion engine, arranged to suppress engine noise and vibration while improving the frictional resistance and seizure resistance of a piston skirt. The piston skirt of the piston is formed at its outer peripheral surface with a ... | 09/21/1993 |
| 5174193 | Pistons for engines or motors The piston comprises a crown (12), and a skirt 30 made of plastics material secured to the crown. The crown (12) is formed integrally with a depending boss (16) arranged to receive a gudgeon pin (18) by which the piston is connected to a connecting rod (2... | 12/29/1992 |
| 5163823 | Reciprocating compressor having a cylinder provided with a gas passage A compressor includes a passage in the sidewall of the cylinder for directing compressed gas against circumferential surfaces of piston rings. The pressure of the gas from the passage counteracts the pressure of gas between the piston ring groove and the ... | 11/17/1992 |
| 5072653 | Piston biased to one side to cover ring gap A piston for a reciprocating machine includes a split piston ring which is located in a circumferential groove in the cylindrical wall of the piston. The piston is adapted to be located in a cylindrical bore so that the piston ring sealingly engages the b... | 12/17/1991 |
| 5054375 | Piston for internal combustion engine A piston comprises a crown part, a piston under part, a first shoulder at a thrust side formed between the crown part and the piston under part, a second shoulder at an anti-thrust side formed between the crown part and the piston under part, a first in-l... | 10/08/1991 |
| 5050485 | Cushioning of piston sidethrust in gas lubricated engine Gas cushions are maintained between a piston and a cylinder of a gas lubricated reciprocating engine which are effective in retarding the approach of the piston to the cylinder wall under the thrust of side forces from the connecting rod. The cushion are ... | 09/24/1991 |
| 5003863 | Cylinder-piston unit for displacing a roll at right angles to its longitudinal axis Located in a stationary frame is a cylinder-piston unit, the piston of which is adapted to displace the bearing housing of a roll in a paper-making machine at right angles to the longitudinal axis thereof. The bearing housing is guided in the frame with t... | 04/02/1991 |
| 4184463 | Internal-combustion engine In an engine of the type having opposite side wall portions more or less differing from each other in rigidity, as in a so-called side valve engine, the axis of the piston unit is set at such an angle of inclination relative to the axis of the associated ... | 01/22/1980 |
| 4114514 | Oscillating steam engines In its simplest form an oscillating steam engine is limited to low pressure operation by a spring or set screw holding the cylinder against a stationary valve plate. This invention features trunnions not rigidly connected to the oscillating cylinder and p... | 09/19/1978 |
| 3995538 | Crosshead piston assembly An internal combustion engine crosshead piston assembly having an outer skirt elastomerically mounted on an inner skirt to reduce piston-slap-caused noise.... | 12/07/1976 |
| 3983793 | Crosshead piston assembly An internal combustion engine crosshead piston assembly having an outer skirt mounted by an elastomeric member on an inner skirt to reduce piston-slap-caused noise wherein expansible chambers are provided in the elastomeric member and are connected by ori... | 10/05/1976 |
