Bizarre Patents
Mouthguard made at least partially from an edible candy
A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.
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| Number | Title | Issue Date |
| 7261030 | Method and system for improving stability of hydraulic systems with load sense A hydraulic circuit is disclosed that can include a flow control element, a pressure compensator connected via a pair of load sense lines to an inlet line and an outlet line, respectively, of a flow control element to provide a constant pressure drop across the flow... | 08/28/2007 |
| 7249608 | Flow control for power steering The flow control device comprises a supply passage (2) for supplying hydraulic fluid discharged by a pump (1) to a power steering output section (8); a variable throttle section (3) situated at an intermediate position of the supply passa... | 07/31/2007 |
| 7243672 | Flow control valve A spool bore (4) where a spool (6) slides, a concave portion (23) opened to the spool bore (4) and facing a return port 12 opened to the spool bore (4), and a land portion (11) disposed in an outer periphery of the sp... | 07/17/2007 |
| 7216662 | Flow control apparatus In a flow control apparatus, a fluid pressure is introduced from downstream of a metering orifice to a rear room of a spool while a relief valve in the spool is assembled in advance. A front section of a relief valve sub-assembly is press fitted to a hole provided o... | 05/15/2007 |
| 7070161 | Proportional directional control valve with a magnetic positioning sensor The invention provides a proportional directional control valve having a valve operating mechanism that permits communication between a first and a second channel through a linear motion of a valve element of the valve operating mechanism, a magnetic assembly operat... | 07/04/2006 |
| 7063100 | Flow regulator with pressure relief combination valve A flow regulator with pressure relief combination valve is disclosed which can include a housing and a valve assembly. The housing can have a chamber and four ports. A cage, having a plurality of cross holes, is supported by the housing. A hollow spool is slidably d... | 06/20/2006 |
| 6966329 | Proportional pilot-operated flow control valve A proportional, pilot-operated flow control valve is disclosed which can include a cage, a hollow compensating spool slidably disposed within the cage, a hollow metering guide member slidably disposed within the compensating spool, a regulating spool slidably dispos... | 11/22/2005 |
| 6874503 | Fluid flow regulation system A fluid flow regulation system has an inlet, an outlet, and an adjustable flow regulator connected between the inlet and the outlet. The regulator has a closed position at which a leakage gas flow through the system is established. An extraction device is provided f... | 04/05/2005 |
| 6679949 | Method and device to allow a rigid pig to pass into a flow pipe which requires the use of a hollow flow-constricting device There is disclosed a method and a device to allow a "rigid" pig to pass into an undersea flow pipe in which a hollow flow-constricting device is in use. According to the invention the device is provided with a first pipe branch and a second pipe branch. T... | 01/20/2004 |
| 6675110 | Testing valve assemblies A method of determining flow through a valve includes determining a first differential pressure across the valve. The valve is bypassed and a second differential pressure is determined across the valve. A flow decision is determined for the valve based on... | 01/06/2004 |
| 6607043 | Down hole motors and methods for their operation A down hole motor assembly includes a hydraulic drive portion, a drill bit operatively connected to the drive portion and a disengage mechanism (11) arranged to disengage drive to the drill bit. The disengage mechanism (11) is arranged to be actuated by s... | 08/19/2003 |
| 6595233 | Safety device for a fluid transmission A safety device (1) for a fluid transmission has a diaphragm (4) which is arranged deflectably in a feed passage (8) and which has at least one through opening (2) for the fluid. A return passage (10) for the fluid from the chamber of the consumer (9) is ... | 07/22/2003 |
| 6334458 | By-pass valve in particular for pressure-washing machines The invention relates to the sector of pressure-washing machines, in the form of a valve with by-pass function when the gun is closed, and allows reduction of the pressure inside the delivery duct during operation in by-pass mode. In particular this valve... | 01/01/2002 |
| 6058962 | Flow rate regulating valve of hydraulic pump A flow control valve for a hydraulic pump is disclosed, which is so constructed that a first pilot chamber (101A) and a second pilot chamber (101B) are arranged in a manner to face a piston (102), resulting in the piston (102) varying initial load of a sp... | 05/09/2000 |
| 6041807 | Flow control device of power steering apparatus A flow control device, responsive to the rotational speed of a pump and to load pressure, has a simple structure. And a housing of the flow control device for saving energy can make use of a general pump housing not for saving energy as a common housing. ... | 03/28/2000 |
| 5832949 | Control valve The invention provides a control valve wherein a restrictor can be formed simply in an oil passage for introducing pressure oil on the downstream side of an orifice into a pressure chamber. The control valve is generally constructed such that pressure oil... | 11/10/1998 |
| 5775360 | Pressure control valve The invention provides a pressure control valve which can be made of aluminum as much as possible and has a comparatively light weight and wherein a seat member made of steel can be force fitted into a spool of aluminum at a room temperature. The pressure... | 07/07/1998 |
| 5718255 | Flow-responsive diverting valve A flow-responsive diverting valve is particularly useful with pressure washers of the type having a water pump coupled to an internal combustion engine equipped with a pull-rope starter. The valve provides an "easy-start" feature and has a valving chamber... | 02/17/1998 |
| 5172716 | Recirculation valve A recirculation valve for cooling a centrifugal pump. The invention comprises a valve casing having a first chamber for connection to a centrifugal pump and a second chamber for connection to a fluid outlet, a recirculation port for redirecting fluid from... | 12/22/1992 |
| 4967783 | Recirculation valve with pilot valve A recirculation valve with pilot valve. The claimed invention comprises a housing containing an inlet chamber for receiving liquid from a pump, an outlet chamber for transporting liquid downstream of said valve and a recirculation port for recirculating l... | 11/06/1990 |
| 4941502 | Low pressure recirculation valve A low pressure recirculation valve for cooling a centrifugal pump. The invention comprises a unitary valve casing divided into a first valve chamber and a second valve chamber, the casing having a first port for introducing fluids into said first chamber,... | 07/17/1990 |
| 4779639 | Automatic recirculation valve An automatic recirculation valve is disclosed which utilizes three valve elements to accomplish particularly smooth and nondisruptive switching of fluid flow between main fluid flow and recirculation fluid flow. A unique back pressure control valve provid... | 10/25/1988 |
| 4638831 | Valve arrangement for unloading liquid flow at a non-return valve A minimum flow valve device includes a housing providing a liquid passageway therethrough having an inlet end and an outlet end; a guide element mounted in the liquid passageway which provides an internal chamber that is open towards the inlet end of the ... | 01/27/1987 |
| 4570667 | Demand responsive flow regulator valve A demand responsive flow regulator valve for use with a power steering pump and steering mechanism has a valve spool slidably disposed in a housing and responsive to a pressure differential across an orifice for the purpose of bypassing excess pump flow. ... | 02/18/1986 |
| 4442857 | Flow control valve A flow-control valve exhibits a flow-drooping characteristic such that the liquid supply into an oil pressure mechanism is decreased in response to an increase of the amount of liquid discharge from a pump. The pump outlet passage forms branches into a fl... | 04/17/1984 |
| 4418710 | Pilot control valve for load sensing hydraulic system A pilot control valve (35) is provided for use in a load sensing system including a priority flow control valve (21). The pilot valve includes a flow orifice (47) through which passes flow from the priority outlet port (23) to the motor (13). The pilot va... | 12/06/1983 |
| 4385640 | Hydraulic unloader An unloader for a high pressure hydraulic system, as a high pressure spraying system, has a pressure inlet for connection with a pump, a pressure outlet for connection with a load and a bypass outlet with a bypass valve. A piston moves the bypass valve be... | 05/31/1983 |
| 4311161 | Valve system in power steering systems A valve system in a power steering system is disclosed. It includes a spool valve which is slidably located in a valve bore for by-passing an excess fluid at high vehicular speed in response to the pressure differential across an orifice. A control rod is... | 01/19/1982 |
| 4265267 | Flow control device for use with positive displacement pump To control the flow of fluid from a positive displacement pump to a consumer line, a rotating shutter periodically opens return flow nozzles which permit the pressure-free return of the pumped fluid to a fluid reservoir. In order to provide hydraulic bala... | 05/05/1981 |
| 4265268 | Modulating flow control valve assembly A modulating flow control valve assembly having a bypass extending from the face of the valve through the valve and the means by which the valve is mounted within the valve body. As the valve moves within the valve body in response to fluid demands, the a... | 05/05/1981 |
| 4244389 | Flow control valve A flow control valve in which the hydraulic pressure difference exerted on a spool valve is controlled by regulating the degree of throttling of a variable orifice and the oil which is discharged from an oil pump is partly returned to the suction side of ... | 01/13/1981 |
| 4243064 | Bypass valve for pumps, heating systems and the like A bypass valve with a tubular housing having an inlet at one end, a main outlet at the other end and a bypass outlet between the ends. A larger-diameter valving element controls the flow of fluid from the inlet to the main outlet, and a smaller-diameter v... | 01/06/1981 |
| 4121610 | Electrically operated proportional flow control hydraulic valve and manually operable remote control device therefor A proportional fluid flow control hydraulic valve including a valve body in which a by-pass flow passage leads from an inlet port to a by-pass outlet port. A valve chamber is arranged between the inlet port and a regulated flow outlet port and the by-pass... | 10/24/1978 |
