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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7303053 | Non-pressure head with integrated piston stop and vent/drain A non-pressure head for a fluid cylinder, which includes a drain channel formed in the flange by a raised portion of the flange extending from a plane of the flange in the same direction as the head portion. The channel is cold formed in the flange. For the piston s... | 12/04/2007 |
| 7270303 | Pincer apparatus for nanosat transport across a satellite A pincer system is comprised of an array of pincers. Each pincer includes an inner disk having legs that are pushed downwards onto a pliable material to cause protuberances, while an outer disk is rotated to simultaneously squeeze the extruded material between its l... | 09/18/2007 |
| 7131911 | Slope controllable foot plate for golf swing practice apparatus A slope controllable foot plate for a golf swing practice apparatus which includes a actuating oil pressure motor providing the power for controlling the slope, a transformation device for transforming the rotating driving power to linear driving power, and a slope ... | 11/07/2006 |
| 7100493 | Pneumatic actuator A pneumatic actuator includes a cylinder, an output shaft disposed rotatably in the cylinder, a pinion disposed in the output shaft, a piston rod furnished with rack teeth to be meshed with the pinion, and pistons disposed one each at opposite ends of the piston rod... | 09/05/2006 |
| 7044156 | Pipeline protection system A protection system for a pipeline comprises a hydraulically actuated valve operable to switchably prevent a flow of fluid from a first section of the pipeline to a second section of the pipeline, a hydraulic fluid source for supplying hydraulic fluid to said hydrau... | 05/16/2006 |
| 6971570 | Striker assembly for a nailer A striker assembly for a nailer comprises: a striker formed with an inserting hole; a piston formed at its clamping portion with a receiving groove for insertion of the connecting end of the striker, on the clamping portion is an inserting hole; a pin inserted in th... | 12/06/2005 |
| 6957533 | Operation device The invention relates to a device for opening of doors. Electromechanical systems contain many expensive components and are thereby expensive to manufacture. Installed electromechanical systems are expensive in operation by virtue of the high and energy-demanding fr... | 10/25/2005 |
| 6935110 | Tandem master cylinders for hydraulic systems A tandem master cylinder in which fluid under pressure is supplied to a primary outlet port from a primary pressure space in a bore between a positively actuated main piston and a floating or secondary piston, and to a secondary outlet port from a secondary pressure... | 08/30/2005 |
| 6889596 | Compressor cooler and its assembly procedure A cryogenic refrigerator and more particularly, the cryogenic refrigerator compressor assembly procedure and to a mechanism for supporting piston for use in such a cryogenic refrigerator is described. Embodiments of the present invention solve the above-mentioned dr... | 05/10/2005 |
| 6880452 | Spring standoff for a reciprocating device A spring standoff for a reciprocating device, the standoff having a generally cylindrical body and having a window in a circumferential surface of the body, and a flange at each end of the body, one flange to be coupled to a planar spring of the reciprocating device... | 04/19/2005 |
| 6477939 | Pressure spring arrangement in a brake cylinder, especially of parking brakes installed in commercial vehicles The invention relates to a pressure spring arrangement for brake cylinders, especially of the type installed in commercial vehicles. When using a pressure spring which comprises at least one retracted end, the facing support for the final winding is confi... | 11/12/2002 |
| 6454548 | Low power electromagnetic pump An electromagnetic pump including a housing having an interior fluid containing region, a check valve operatively flow in a direction from an inlet toward an outlet and blocking fluid flow in a direction from the outlet to the inlet, an electromagnet carr... | 09/24/2002 |
| 6413057 | Plurality of outer resonance springs for a linear compressor A linear compressor including: a cover fixed at a rear side of a frame; a cylinder fixedly installed in a horizontal direction at the center of inside of the frame; an inner stator assembly fixedly installed at the frame in a state that its inner circumfe... | 07/02/2002 |
| 6389954 | Removable filter plug for spring brake actuator Disclosed is an easily removable and replaceable filter for attachment to the breather holes in the housing of a spring or service brake actuator. The invention has a hollow shaft and flange for snap fitment into a brake actuator breather hole, and includ... | 05/21/2002 |
| 6374724 | Concentrically mounted hydraulic clutch slave cylinder A concentric slave cylinder for motor vehicle manual transmissions in which the cylinder housing is fabricated from an inner cylindrical member having a base flange and an outer cylindrical member having a base flange wherein the annular fluid chamber bet... | 04/23/2002 |
| 6352018 | Hydraulic actuator assembly with integral damper/accumulator A novel arrangement of a hydraulic actuator assembly is disclosed. The hydraulic actuator assembly comprises a bi-directional electric motor driving a drive screw. A shaft coupler is threaded onto the drive screw. The shaft coupler is splined to a station... | 03/05/2002 |
| 6131937 | Side strut for the lower steering arm of a tractor A side strut (5) for a lower steering arm (1) of a tractor has a single action hydraulic cylinder (9) whose piston (12) includes first attaching means (6) to be connected to the rear of the tractor. The strut (5) also has a telescopic unit (10) and a sett... | 10/17/2000 |
| 6041804 | Subsea valve actuator and method A subsea actuator and method is disclosed that includes a removable monolithic cap/hydraulic chamber that seals the actuator housing top with seals placed around the monolithic cap, defines a straight hydraulic line and port for control line hydraulic flu... | 03/28/2000 |
| 5988043 | Modulator adjustment device A modulator adjustment device (10) including a generally cylindrical body (36, 37) having cavities formed at opposite ends thereof and a dial wheel (32) extending radially outwardly and circumscribing the body, a rotatable coupling (48) disposed in the ca... | 11/23/1999 |
| 5937730 | Pneumatically operable drive unit with a temperature dependent irreversibly releasable lock joint A drive unit is designed as a diaphragm drive with return springs for shifting an associated actuator, connected by a diaphragm plate and a driving diaphragm, into a safety position. The drive unit also includes actuating springs that are held in a compre... | 08/17/1999 |
| 5890415 | Liquid pump A liquid pump has a pump head, a head holder which can be assembled with the pump head and a housing connected to the head holder, providing an internal space which connects to a liquid flow route through the pump head. A plunger assembly is disposed insi... | 04/06/1999 |
| 5787791 | Turbocharger actuator with rolling O-ring An actuator for a turbocharger includes a housing having a chamber therein, a piston assembly having a rod and a piston secured to a rod for axial movement therewith, a spring operatively interposed between the piston and the housing for urging the piston... | 08/04/1998 |
| 5752430 | High pressure fuel supply pump for engine A high pressure fuel supply pump which is driven by a cam connected to an engine is composed of a cylinder, a plunger slidably disposed in the cylinder, a tappet linked to the cam, a coil spring biasing the tappet against the cam, a cylindrical guide for ... | 05/19/1998 |
| 5746509 | Hydrostatic-mechanical gear for driving a mixing drum The invention concerns a hydrostatic-mechanical gear for driving a mixed drum and, in particular, the drum of a concrete mixer vehicle. Cooling is provided for by the continuous removal of oil from a high pressure circuit, via a connecting pipe, and the c... | 05/05/1998 |
| 5735188 | External slave cylinder for hydraulic clutch release system An external slave cylinder particularly suited for use in a hydraulic clutch release system for a motor vehicle. The cylinder includes a cylindrical body defining a bore, a piston slidably mounted in the bore, a seal positioned between the piston and the ... | 04/07/1998 |
| 5713261 | Slack adjustable force transmitting cylinder A pressure actuated force transmitting cylinder includes a housing member having first and second elongated portions. An end cap closes one end of the housing in a fluid tight manner. A connection is formed through such first portion for communicating flu... | 02/03/1998 |
| 5560280 | Repairable tamper-proof brake A pneumatic spring brake is improved so as to be not only tamper proof but repairable as well. Such a brake is formed of a spring chamber head and adapter head, both of which define rigid mating rims that are disposed in mutual, longitudinal alignment and... | 10/01/1996 |
| 5544565 | Brake band servo for automatic transmission A servo for operating a brake band in an automatic transmission includes a transmission casing defining a cylinder, a servo piston supported for displacement within the cylinder, a piston stem defining a locking shoulder, a compression spring fitted over ... | 08/13/1996 |
| 5494075 | Hydraulic time delay valve A hydraulic time delay valve includes a hydraulic timer valve having a valve pressure port, a valve return port, a valve cylinder port and a porting device for porting hydraulic fluid from the valve pressure port to the valve cylinder port. A cylinder is ... | 02/27/1996 |
| 5386761 | Rotary valve actuator A valve actuator with an arcuate piston disposed within a housing including a side wall having a partition and two end plates whereby when joined, the housing forms a first and a second compartment. An arcuate piston travels between the compartments via a... | 02/07/1995 |
| 5272958 | Brake booster with compression spring extension limiting links The invention relates to a vacuum-operated servo-brake comprising, in a casing consisting of a shell (10) and a cover (12), a piston (20) separating leaktightly two inner chambers (22, 24), a valve means controlled by a rod (32) projecting from the casing... | 12/28/1993 |
| 5267637 | Actuator with anti-rotation spring A concentric hydraulic clutch actuator including a coil spring arranged to be stressed in response to expansion and contraction of the actuator and including end portions which are bent radially inwardly and coact with circumferentially spaced lugs on the... | 12/07/1993 |
| 5249423 | Master cylinder A master cylinder includes a second piston that is provided with a hollow portion. The hollow portion includes a yoke portion for receiving an end of the second return spring, a cylindrical portion having a diameter that is larger than the diameter of the... | 10/05/1993 |
| 5205205 | Tamper resistant brake actuator The present invention provides a tamper-resistant fluid-operated brake actuator having a power spring housed within a head or cap which is attached to a flange case having one or more diaphragms or pistons responsive to changes of fluid pressure within th... | 04/27/1993 |
| 5203250 | Fluid cylinder mechanism A fluid cylinder mechanism couplable to a vehicle and having a piston slidable within the cylinder, a rod couplable to an implement and shiftable within an opening in the piston, the rod being adapted to shift vertically within the piston a an implement r... | 04/20/1993 |
| 5193432 | Tamper-resistant brake actuator An air-operated combination diaphragm spring brake has a tamper-resistant clamp provided between a head (46) and a spring side of a flange case (18) which together form a spring chamber (16) housing a power spring (72). The head (46) has an annular rim (7... | 03/16/1993 |
| 5184468 | Brake power booster and master cylinder assembly with return spring plate A vacuum brake power booster is presented in which the vacuum control valve (81) is arranged parallel to the master cylinder (55). The housing (92) of the booster is used as a carrier element for actuating members, such as the brake pedal (60, 8) and the ... | 02/09/1993 |
| 5181588 | Open framework disc brake caliper having an elastomeric cylinder liner A disk brake caliper comprises a cast body including an inboard support, an outboard support, and an open framework interconnecting both supports. The caliper body includes a cast brake cylinder closed at one end arranged inwardly of the framework and ext... | 01/26/1993 |
| 5165322 | Three position power cylinder An assembly for moving objects by mechanical linkages has a power cylinder ith a shoulder at the juncture of a small bore and a large bore and with ports adjacent each end and one adjacent the shoulder. A shaft extends through the cylinder with a larger di... | 11/24/1992 |
| 5165375 | Master piston for a compression release engine retarder An improved master piston assembly for use in a compression release engine retarder. The improved master piston provides increased reliability and reduced manufacturing costs due to a reduction in complexity over the prior art, as well as a redesigned typ... | 11/24/1992 |
