Bizarre Patents
Decorative Jeweled Wheel Cover
An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.
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| Number | Title | Issue Date |
| 7314572 | Methods of and apparatus for low-angle-tray settling with multi-zone configuration Settleable-particles are separated from a dirty flow of settleable-particles and fluid by trays having a planar section configured with opposed ends and opposed sides, and an entrance edge and an exit edge on opposed ends. The section has opposed side edges, and an ... | 01/01/2008 |
| 7197975 | Piston-cylinder unit Piston-cylinder unit including a working cylinder; a piston attached to a piston rod and installed with freedom of axial displacement in the working cylinder; and fastening elements, at least one of which is screwed into a threaded bore in the piston rod, where the ... | 04/03/2007 |
| 7146900 | Composite operation type actuator A cylinder chamber 17 at the front of a direct-acting type actuator section 10 is connected to a cylinder chamber 37 at the front of an oscillating type actuator section 30 through a sequence valve with check valve 40. Further, a c... | 12/12/2006 |
| 6688211 | Dual linear actuator A dual linear actuator for allowing a tool to perform multiple actions either simultaneously or independently of one another. The dual linear actuator includes an outer tubular housing having open first and second ends and also having a bore extending the... | 02/10/2004 |
| 6470789 | Dual stroke cylinder A first piston 13A and a second piston 13B are disposed in a cylinder tube 12A, a hollow piston rod 17 is connected to the second piston 13B, an intermediate stop rod 16 which penetrates the second piston 13B and is fitted into the piston rod 17 is connec... | 10/29/2002 |
| 6386508 | Actuator having dual piston surfaces A pressurized-fluid-operated actuator has two piston surfaces for providing increased output force. The actuator includes a hollow piston that is divided into two inner chambers by a stationary inner dividing wall that is rigidly connected with a cylinder... | 05/14/2002 |
| 6338359 | Dual automatic insertion device A probe structure for inserting into and operating upon an object within a pipeline, especially a high pressure pipeline carrying liquid or gas, is characterized by two coaxial cylinders that can be either pneumatically or hydraulically actuated. A primar... | 01/15/2002 |
| 6244562 | Multistage switching valve, two-stage switching valve, and toggle type two-stage switching valve A multistage switching valve includes a valve stem which is adapted to open or close a fluid passage, a biasing biasing means for biasing the valve stem in a direction to close the fluid passage, a plurality of pistons which are relatively slidably fitted... | 06/12/2001 |
| 6227223 | Valve and actuator in combination The present invention provides an interchangeable modular valve-actuator combination whereby the valve stem on the valve and the actuators are configured to be interchangeably engageable. The components of the valve-actuator are sized accordingly so that ... | 05/08/2001 |
| 6217260 | Downhole reamer with double acting dual piston cylinder An intelligent multi-functional hydraulic expanding apparatus includes a hydraulic expanding head, an automatic control hydraulic center, and a depth measuring system. The expanding head includes a hydraulic positioning device, an automatic hydraulic revo... | 04/17/2001 |
| 6098517 | Rotary linear unit A rotary linear unit possesses a rotary drive and a linear drive. A bearing rod is connected with the drive shaft of the rotary drive, such bearing rod extending coaxially into the output drive unit of the linear drive. On the bearing rod a bearing sleeve... | 08/08/2000 |
| 5941158 | Fluid pressure actuator and actuator system A fluid pressure-operated actuator comprises a cylinder body containing a piston slidable therein, the piston defining respective chambers at opposite sides thereof. A rod projects from one side of the piston and extends through an end wall of the cylinde... | 08/24/1999 |
| 5924672 | Valve and actuator in combination A valve and actuator in combination with a transportation tank to operate off of low pneumatic pressures including a valve having a valve body with a tank end, a valve seat near the tank end of the valve body, the valve seat having a valve sealing surface... | 07/20/1999 |
| 5852936 | Pressure medium actuated operating device Pressure medium actuated control cylinder for wear compensation. A cylinder chamber includes two displaceable pistons. One piston has a first piston rod which extends outside the cylinder, and a second piston rod which extends into a through-bore in the s... | 12/29/1998 |
| 5819635 | Hydraulic-pneumatic motor A hydraulic motor has a longitudinally extended piston cylinder divided longitudinally into two separate and distinct fluid passages by a central divider. Longitudinally midway about the extended piston cylinder is attached a large center piston which pro... | 10/13/1998 |
| 5673897 | Valve/actuator combination A valve/actuator combination to operate off of low pneumatic pressures for use on tanker railcars including a valve having a valve body with a tank end, a valve seat near the tank end of the valve body, the valve seat having a valve sealing surface; a ste... | 10/07/1997 |
| 5611489 | Actuating system for a variable area exhaust nozzle An actuating system for a variable area exhaust nozzle is disclosed having inner and outer flaps pivotally connected to an airframe whose positions may be varied by a single set of control cylinders. The control cylinders have a case in which is slidably ... | 03/18/1997 |
| 5577532 | Valve actuator An actuator has been developed for actuating a valve for controlling fluid flow in a conduit, the actuator having, in one aspect a housing with a main interior housing space, a rod with a mid-portion, a top end and a bottom end, the mid-portion movably di... | 11/26/1996 |
| 5483796 | Fluid cylinder A second pressure intensifying cylinder subchamber is employed for moving a pressure intensifying piston toward the other side, and the necessity for a control valve with a throttle is thereby eliminated. The pressure intensifying piston is incorporated i... | 01/16/1996 |
| 5410946 | Hydraulic actuator A hydraulic actuator including a single cylinder body which defined therein a pressure chamber in which a first piston with a piston rod and a second piston with a piston rod are independently movably inserted, a first working member secured to the first ... | 05/02/1995 |
| 5255591 | Fluid powered indexing apparatus An indexing apparatus (10) having a pair of concentric cylinders (12, 14) with the outer concentric cylinder (12) being fixed against longitudinal movement and the inner cylinder (14) mounted for reciprocal movement relative to the fixed outer cylinder (1... | 10/26/1993 |
| 5247872 | Multi-stage hydraulic actuator A multi-stage hydraulic actuator including a cylinder body having an outer cylinder and an inner cylinder provided in the outer cylinder, first and second pistons inserted in the outer cylinder to independently move and provided with first and second work... | 09/28/1993 |
| 5191825 | Low-impact air cylinder A low-impact drive unit operates by air under pressure. It includes aligned working and pressure chambers. The working chamber contains a working piston and a working piston rod extending from an end of the chamber. The pressure chamber contains a rear ou... | 03/09/1993 |
| 5188014 | Hydraulic cylinder with pressure transmission The hydraulic cylinder comprises a cylinder jacket (1), a piston-rod guide flange (2), and a cylinder bottom (3). Disposed within the cylinder are a primary piston (4) provided with a piston rod (6) and a secondary piston (11) connected to two plungers (7... | 02/23/1993 |
| 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 |
| 5072811 | Telescopic brake piston A telescopic brake piston includes a cylindrical housing and a pair of concentric pistons. A first hydraulic cavity is provided between an outer piston and the housing, while a second hydraulic cavity, communicating with a source requesting the applicatio... | 12/17/1991 |
| 5035113 | Electropneumatic remote control for shifting the mechanical transmission of a motor vehicle A remote control shifting system for a mechanical transmission. The transmission is operated by two pneumatic cylinders, a selecting cylinder operating in the direction of shift path selection and a shifting cylinder acting in the direction of shifting. T... | 07/30/1991 |
| 5012725 | Three position actuator for shifting a two speed transfer case The present invention includes a three position actuator which is used to position the gear range control lever on a two speed transfer case. Three positions are required to achieve HIGH, LOW and NEUTRAL. Two individual air chambers may be selectively cha... | 05/07/1991 |
| 5009068 | Pneumatic cylinder with positioning, braking, and feed rate control A pneumatic piston/cylinder unit comprises primary and secondary pistons operable in first and second cylinder zones respectively. Each of the primary and secondary pistons divide its respective cylinder zone into two chambers, one of the chambers of the ... | 04/23/1991 |
| 4987825 | Actuator with fluid transfer tubes A fluid-powered actuator for selectively rotating and linearly moving an external device with two fluid ports to communicate pressurized fluid thereto for its operation. The actuator includes a body having a rotatable shaft extending therewithin. The shaf... | 01/29/1991 |
| 4934652 | Dual stage valve actuator An actuator for opening and closing the gate of a surface safety valve includes a primary piston and an auxiliary piston. The primary drive piston is directly connected to the valve stem, while the auxiliary piston is slideably connected thereto. Extensio... | 06/19/1990 |
| 4925154 | Gate valve with supplemental actuator An improved gate valve having a body with a chamber and an inlet and an outlet extending therethrough into said chamber, a gate mounted for reciprocation in said chamber between open and closed positions, a pressure responsive actuator having a housing, a... | 05/15/1990 |
| 4881211 | Multiple frequency range hydraulic actuator A multiple frequency range hydraulic actuator includes a low frequency cylinder with a low frequency actuator piston within. The low frequency piston operates as a high frequency cylinder having a high frequency piston within. The low frequency piston, an... | 11/14/1989 |
| 4871143 | Gate valve with supplemental actuator An improved gate valve having a body with a chamber and an inlet and an outlet extending therethrough into said chamber, a gate mounted for reciprocation in said chamber between open and closed positions, a pressure responsive actuator having a housing, a... | 10/03/1989 |
| 4796514 | Rotary/linear convertor A rotary/linear convertor which comprises a first member may be in the form of a piston (14, 15, 16, 17, 114, 115, 116, 117) and a guide which is preferably in the form of a cylinder (12, 112) the first member being arranged for linear movement within or ... | 01/10/1989 |
| 4791856 | Single acting hydraulic actuator with variable return force A spring operated valve actuator with variable return force includes a compact spring mechanism with a short but very powerful closing characteristic. The energy provided by the spring mechanism is applied during the entire movement of the valve, with var... | 12/20/1988 |
| 4787494 | Hydraulic operating unit of friction engaging apparatus for transmissions A hydraulic operating unit for the friction engaging apparatus of a transmission provides a hydraulic operating unit which permits the introduction of a low-pressure working fluid to permit the forceable disengagement of the hydraulic operation unit to wo... | 11/29/1988 |
| 4773300 | Three-position working cylinder having dual concentric pistons A fluid-pressure-operated, three position working cylinder includes a cylindrical housing having a graduated bore formed therein and a movable primary piston dividing the bore into first and second pressure chambers. A movable secondary piston surrounds a... | 09/27/1988 |
| 4756238 | Apparatus for performing plural operations on a common workpiece An actuator including a first cylinder chamber and a second cylinder chamber defined as separate entities in a cylinder for receiving a first piston and a second piston therein respectively. One of the first and second cylinder chambers is connected to an... | 07/12/1988 |
| 4748899 | Dual-pressure jack The casing of the jack is divided into two cylinders by a cross partition, with a first piston which moves in one of the cylinders and a second piston, forming two parts, linked by a rod which crosses the partition to its first part which moves in the fir... | 06/07/1988 |
