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A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
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| Number | Title | Issue Date |
| 7451689 | Combined service brake and spring brake cylinder assembly A combined service brake and spring brake cylinder for the braking system of a motor vehicle, in particular for utility vehicles, includes service and spring brake pistons guided inside a casing which is common for the two brake cylinders. The spring brake piston is... | 11/18/2008 |
| 7234386 | Three chamber hydraulic cylinder for an active vehicle suspension with integrated load leveling A hydraulic actuator for an active of semi-active vehicle suspension system has a cylinder with a piston therein. A piston rod is attached to the piston and extends out of the cylinder. First and second chambers are formed on opposites sides of the piston enabling t... | 06/26/2007 |
| 7171890 | Telescopic lifting device The invention relates to a telescopic lifting column. The lifting column comprises a plurality of tube bodies which are arranged concentrically inside one another and are axially movable in each case with respect to each other. Furthermore, the lifting column compri... | 02/06/2007 |
| 7165504 | Antenna linear extension and retraction apparatus for a submersible device, and method of use An antenna linear extension and retraction apparatus and method of use for a submersible device is provided. The apparatus includes a body having a cavity formed at an external surface. A bladder containing a core material is arranged within the cavity. The core mat... | 01/23/2007 |
| 7047611 | High performance intermediate servo assembly and method of use A high performance intermediate servo assembly wherein the servo piston has been modified to provide at least a 17% increase in surface apply area and a corresponding increase in hydraulic pressure delivered to the 2nd gear clutch band which it actuates. ... | 05/23/2006 |
| 6938538 | Bore seal telescopic hoist A bore seal telescopic hoist is formed of a series of telescopically arranged tubular sections each having a circumferential reservoir. A circumferential wiper is lodged in the reservoir and is used to collect debris or dirt which may be present on the inner wall of... | 09/06/2005 |
| 6907974 | High performance intermediate servo assembly A high performance intermediate servo assembly wherein the servo piston has been modified to provide at least a 17% increase in surface apply area and a corresponding increase in hydraulic pressure delivered to the 2nd gear clutch band which it actuates i... | 06/21/2005 |
| 6899014 | Hydraulic hoist formed from memory alloy A telescoping hydraulic hoist with tube stages formed from a heat treated aluminum alloy from one of the series 2000, 6000 or 7000 aluminum alloys. These alloys retain good “memory” properties, and under the force of a pressure spike undergoes a momentary elasti... | 05/31/2005 |
| 6895854 | Power cylinder apparatus for supplying varying actuation forces The present invention relates to a power cylinder apparatus for varying actuation forces applied to a workpiece. The present invention provides an enclosure having a piston rod connectable to a workpiece and slidably disposed within an enclosure. The piston rod move... | 05/24/2005 |
| 6761104 | Linear path slide The linear path slide (100) with a slide (10) which is arranged with a sliding guide (12) slidingly movable and resistant to torsion in a housing (11) and with a hydraulic driving gear which causes the translation movement of the slide ( | 07/13/2004 |
| 6732630 | Ultrathin cylinder An ultrathin cylinder includes a cylinder bore formed in a short columnar cylinder body and having an axial length smaller than its radius, a short cylindrical piston for sliding in the cylinder bore and also functioning as a piston rod, a guide rod positioned at a ... | 05/11/2004 |
| 6726459 | Variable injection rate high pressure fuel pump A high pressure fuel pump having a variable fuel injection rate, including a pump body, a pump cylinder formed in the pump body and a piston reciprocable within the pump cylinder, which defines a pressurization chamber. The pump piston has a reduced diameter portion... | 04/27/2004 |
| 6651546 | Multi-stroke cylinder A multi-stroke air cylinder providing a precisely directed and controlled stroke in the face of lateral, torsional and tilting loads on a tooling plate. The multi-stroke cylinder utilizes a plurality of mechanically linked pneumatic or hydraulic pistons h... | 11/25/2003 |
| 6427577 | Load bearing apparatus for use with fluid power systems A load bearing apparatus includes a first container having enclosed ends and at least one expansion segment. The expansion segment includes a first cylinder and a second cylinder of diameter smaller than the first cylinder disposed along a longitudinal ax... | 08/06/2002 |
| 6382080 | Apparatus for synchronization of telescopic rams in hydraulic elevators An apparatus for synchronizing a telescopic ram in a hydraulic elevator in which two or more pistons and a cylinder are simultaneously extended from and retracted into a foot portion mounted at the bottom of an elevator shaft includes a connecting cable w... | 05/07/2002 |
| 6325601 | Manual air pump having selectable high pressure and high volume modes A manual air pump includes an outer cylinder comprising a chamber therein, a head provided to an end of the outer cylinder, the head including an outlet passage communicated with the chamber for supplying air to an object to be inflated, and an inner cyli... | 12/04/2001 |
| 6295813 | Press driven tool actuator module For a hydraulically actuated device a hydraulic power cylinder with an actuator slidably received for reciprocation within the cylinder and a piston slidably received for reciprocation within a sleeve of the actuator and defining a gas chamber on one side... | 10/02/2001 |
| 6283007 | Regulating cylinder and piston unit and method of utilizing the same A cylinder and piston unit, which can be utilized to select the gears of and/or to shift a change-speed transmission in the power train of a motor vehicle, has a housing provided with two internal chambers and internal stops and receiving a reciprocable a... | 09/04/2001 |
| 6273839 | Roller control unit for a continuously-variable-ratio transmission A roller control unit (2) for a continuously-variable-ratio transmission includes a cylinder (6) having a cylinder wall and an end wall; and a piston (8), within the cylinder (6) and to which the roller assembly (4) is connected for movement therewith, sa... | 08/14/2001 |
| 6272853 | Hydraulic lifting-lowering-system for a working table, a couch or lying furniture or another heavy object A hydraulic lifting-lowering-system for a working table, a couch or lying furniture or another heavy object allows the height level or position to be frequently adjusted or changed. The system includes a predetermined amount of hydraulic fluid, a hydrauli... | 08/14/2001 |
| 6209440 | Hydraulic double telescopic prop The double telescopic prop comprises an outer cylindrical casing tube 1, an inner tube 2 which is displaceable therein and a piston rod 3 which can be extended therefrom. The hydraulic fluid for extending the two prop stages is conveyed through a connecti... | 04/03/2001 |
| 6152015 | One-side fed, double-acting, pneumatic actuator The pneumatic actuator comprises at least one double-acting cylinder having a tubular body and two closure heads which define a piston chamber for a reciprocable piston; the body of the cylinder consists of an extruded tubular section provided with at lea... | 11/28/2000 |
| 6065562 | System for imparting compressional and shear waves into the earth A seismic vibrator system for imparting compressional and shear wave vibrations into the earth has an earth contacting base with a vertical post. A tubular hub is slidably received on the post in a piston/cylinder relationship. Spaced apart horizontal top... | 05/23/2000 |
| 5983778 | Telescopic hydraulic hoist apparatus A telescoping hydraulic hoist formed from a non-corrosive material provides bearings and hydraulic seals about the bottom portion of each intermediate moving stage. The bearings and hydraulic seals are thus always maintained within the hoist and are not e... | 11/16/1999 |
| 5975968 | Trim-tilt device for marine propulsion unit A trim-tilt device 20 for a marine boat motor has a housing 31 forming a large-diameter trim chamber 32, a cylinder 41 inserted into the trim chamber 32 of the housing 31 to form a small-diameter tilt chamber 42, and a piston rod telescopically inserted i... | 11/02/1999 |
| 5960698 | Hydraulic cylinder A small diameter cylinder 1a and a large diameter cylinder 1b connected to it are formed in a housing, and a stepped piston 8 comprising a large diameter part 8b and small diameter part 8a is inserted in these cylinders. A first pressure chamber 14a is fo... | 10/05/1999 |
| 5953967 | Fluid-operated cylinder-piston unit, and a tool provided therewith A fluid-operated cylinder-piston unit has a cylinder forming an inner space, a piston unit movable in the inner space and including a first piston and a second piston movable relative to one another and each having a displacement area at one end and a for... | 09/21/1999 |
| 5927178 | Press driven tool actuator module A hydraulic actuator for a hydraulically driven device has a hydraulic cylinder, a first piston slidably received for reciprocation within the cylinder and defining a hydraulic fluid chamber with the cylinder, a second piston slidably received for recipro... | 07/27/1999 |
| 5878578 | Hydraulic pressure generator with vibration damping A hydraulic pressure generator having a body (1) with a first bore (11) therein for receiving a cylinder (21) of a piston assembly (2) to define a pressure chamber (12). The cylinder (21) has a second bore (211) for receiving an auxiliary piston (22) whic... | 03/09/1999 |
| 5860252 | Arrangement at self expanding booms A valve mechanism for self-expanding booms. The mechanism is preferably a mechanical expansion device that folds out the boom so that air flows into the boom to fill the boom. When the boom is folded, the air is pressed out of the boom. A novel feature is... | 01/19/1999 |
| 5850713 | Device raising and lowering apparatus An apparatus for raising and lowering devices such as an antenna including a multiple-stage cylinder system composed of a plurality of telescopically connected cylinder units each of which comprising an internal cylinder and an external cylinder that are ... | 12/22/1998 |
| 5829679 | Plural component airless spray gun with mechanical purge A plural component airless spray gun for reactive liquid materials has a mix chamber into which coreactive liquid components are introduced and mixed, an airless tip at a forward outlet from the chamber from which the mixed components are emitted in a fan... | 11/03/1998 |
| 5799563 | Piston and cylinder clamping motor A valve spring compressor apparatus for removing and installing valve springs on automotive racing engines includes a valve seat and a compressor pump assembly. The valve seat is placed between the valve spring and the engine housing. The compressor engag... | 09/01/1998 |
| 5706712 | Adjusting drive for transmission of motorized vehicles An adjusting drive for a transmission of a motorized vehicle has a housing and an adjusting member supported within the housing. The adjusting member has at least three control positions. The housing has at least two valve-controlled connecting adapters f... | 01/13/1998 |
| 5669265 | Arrangement for gear change operation An apparatus for operating a device, e.g. through moving a piston rod. An outer cylinder has an inner cylinder movable between the end walls of the outer cylinder, whereby the inner cylinder is a piston movable in the outer cylinder. An inner piston in th... | 09/23/1997 |
| 5632444 | Fuel injection rate shaping apparatus for a unit injector A multipiece fuel pump plunger assembly for controlling the fuel injection rate and delivery during the initial injection portion of a fuel injection cycle for an internal combustion engine. The injector includes a two piece plunger assembly including a p... | 05/27/1997 |
| 5613418 | Multiple-stage hydraulic cylinder A multiple-stage hydraulic cylinder for shifting loads by exerting different forces over different distances, in which a hollow-piston cylinder is provided with a hollow piston rod. The hollow piston rod accommodates at least one additional long-stroke cy... | 03/25/1997 |
| 5542827 | Multiple nested pistons hand priming pump with spring biasing A multiple piston hand priming pump includes a plurality of nested pistons engaged within a hollow cylindrical housing. One end of the housing has an inlet/outlet fitting leading to a pumping chamber defined within the housing and the other end of the hou... | 08/06/1996 |
| 5406880 | Heavy equipment jack A double acting hydraulic jack comprising a housing from which at least two pistons extend, each of the pistons being telescopic with respect to one another and with respect to the housing, and a counterbalance valve between adjacent pistons. The counterb... | 04/18/1995 |
| 5406877 | Steering/lifting appliance A steering/lifting appliance (10) for a hydraulic or pneumatic axle compensation appliance configured as a two-circuit system, having a first external jacket tube (12), a second jacket tube (15) inserted in a pressure-tight manner in the first jacket tube... | 04/18/1995 |
