Bizarre Patents
Dining Table Having Integral Dishwasher
A space-saving dishwasher, which may be installed within a counter top or table, having a dish-carrying rack that is vertically shiftable through the open top of the dishwasher for facilitating loading and unloading of the dishes.
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| Number | Title | Issue Date |
| 4638924 | Self mixing sprayer A sprayer mixes water and concentrate on an "as-used" basis. A preselected amount of concentrate is dispensed into a mix tank for each reciprocation of a proportioning pump set. The amount of concentrate dispensed is selected by varying the pump set strok... | 01/27/1987 |
| 4593712 | Pilot control valve A pilot control relay valve having first and second elongated valve members coaxially and independently longitudinally shiftable within a valve body between a first position of the first or leading valve member thereby allowing communication of actuating ... | 06/10/1986 |
| 4580590 | Automatic air valve assembly An automatic air valve assembly for alternately delivering pressurized air to one of a pair of control ports of a reciprocal power unit comprises a valve body having a bore, a plurality of inlet, cylinder, and exhaust ports, with the inlet port adapted fo... | 04/08/1986 |
| 4513653 | Automatic hydraulic reversing valve for a double-action working cylinder This invention relates to an automatic hydraulic reversing valve for a double-action working cylinder. The purpose of the invention is to employ valves of this type without the requirement of an expensive servo-control mechanism, but nevertheless having a... | 04/30/1985 |
| 4510846 | Pneumatic actuator device A closed center four-way poppet actuator control device is incorporated into a pneumatic actuation system for controlling the movement of flight surfaces. The closed center four-way poppet actuator control device has a housing, a pair of two-way poppet va... | 04/16/1985 |
| 4494912 | Energy conserving air pump An energy conserving air pump includes an air operating pump section and a separate fluid pumping section capable of handling pure fluids in concentrate form or in solution, and operates by the use of a single slug of air in the air operating section to s... | 01/22/1985 |
| 4462418 | Unitized pneumatic cycling and timing system A pneumatically energized, pre-packaged, unit for selectively controlling the pressure, cycle and time duration of an air actuated work device includes a protective housing having an air pressure regulator, an air inlet orifice and a visably exposed press... | 07/31/1984 |
| 4461314 | Electrohydraulic valve A 4-way, 3-position, on-off type electrohydraulic valve includes a pair of solenoid-operated inlet valves for controlling communication between a pump and a valve bore. A pair of adjustable check valves are positioned in opposite ends of the valve bore. A... | 07/24/1984 |
| 4448211 | Three-way valve A three-way valve comprises a control mechanism which is disposed within a valve main body. The control mechanism is provided for bringing a first main valve in contact with a first valve seat of the valve main body and simultaneously separating a second ... | 05/15/1984 |
| 4433615 | Blocking and thermal relief valve A combination hydraulic lock and pressure relief valve for use in an actuator system for operating a spoiler control surface is interposed between the retract side of the actuating piston and the servo valve controlling the piston. In this valve a poppet ... | 02/28/1984 |
| 4397221 | Regenerative valve A regenerative valve includes a housing having a valve bore therein intersecting with an extension passage interconnecting a pump and a piston extension chamber, a retraction passage interconnecting a sump and a piston retraction chamber, and a regenerati... | 08/09/1983 |
| 4385639 | Self-cycling valve A self-cycling valve including a main valve and an operator valve. The main valve comprises a body having an inlet port, an exhaust port, and two outlet ports, and valve elements for controlling communication between each outlet port and the inlet and exh... | 05/31/1983 |
| 4367763 | Four-way directional valve An automatic four-way valve hydraulically operated for extending and retracting a cylinder, which is spring-biased to the retract attitude until it is fully retracted whereupon a pressure build-up in a chamber between the spool and the valve body override... | 01/11/1983 |
| 4329912 | Auxiliary power steering for motor vehicles A throttle valve biased to open position by a spring is interposed in the return line of a steering control valve in a booster steering system. The essential feature of the invention is that one face of the valve is exposed to feed pressure acting against... | 05/18/1982 |
| 4300584 | Hydraulic sequence valve A hydraulic sequencing valve is disclosed. A hollow spool is slidably carried in a valve body for motion between a first position in which fluid is caused to flow out a valve first port and a second position in which fluid is caused to flow into the first... | 11/17/1981 |
| 4244275 | Counterbalance valve A hydraulic system for raising and lowering a load by means of a fluid motor includes a counterbalance valve which controls the flow of fluid to and from the motor. The counterbalance valve has a pilot operated metering orifice which passes fluid from the... | 01/13/1981 |
| 4240255 | Integrated control device for a fluid circuit and applications thereof The device comprises in a body a pressure limiting stage, a second stage constituting a fluid check and retarding valve and piloting means between these two stages. The second stage comprises regulating means which are easily accessible from outside the b... | 12/23/1980 |
| 4223693 | Counterbalance valve A counterbalance valve assembly for use in a hydraulic system of the type including a hydraulic cylinder for raising and lowering a load provides gradual and continuous exhaustion of hydraulic fluid from the cylinder to facilitate smooth lowering of the l... | 09/23/1980 |
| 4218884 | Hydraulic speed governor Flow from a pressure source is bidirectionally conducted to a prime-mover driven, bidirectional, positive displacement pump and in-series flow restrictions; the pressure source and flow restrictions functioning to provide the reference flow rate; the pres... | 08/26/1980 |
| 4218957 | Flow control valve A flow control valve in fluid communication with a variable orifice which is utilized to control speed of a fluid motor, the valve providing a constant pressure drop across the variable orifice whereby consistent control of speed of the motor may be maint... | 08/26/1980 |
| 4209031 | Positive control valve assembly The hydraulic control valve assembly of the present invention functions to positively control the movement of a fluid powered motor unit, wherein the control valve comprises a manually slidable spool which allows hydraulic fluid to be selectively introduc... | 06/24/1980 |
| 4192338 | Hydraulic lock-out device A hydraulic lock-out device for use with a hydraulic motor or jack that permits smooth operation of the piston and ram of the hydraulic motor during the working stroke and return stroke without surging or interruptions, and is operative to isolate the hyd... | 03/11/1980 |
| 4180090 | 4/2 Way valve A pressure controlled 4/2 way valve, particularly for the alternating control of the feed conduits of two conduit - lubrication systems. Three cylindrical spaces are formed in a housing connected by channels with one another and each contain a piston for ... | 12/25/1979 |
| 4169616 | Valve and cylinder-actuated lock controlled thereby A lock located within a door has a bolt that is extended and retracted by a double acting air cylinder. A single air line extends from the door frame and into the door where it is connected with a valve having two discharge lines that lead to opposite end... | 10/02/1979 |
| 4114516 | Anti-cavitation and pressure modulating relief valve for controlling hydraulic cylinders A construction vehicle has a work implement, such as a bucket-carrying boom, pivotally mounted thereon to be raised and lowered by one or more double-acting hydraulic cylinders. A directional control valve is conditioned to selectively communicate pressur... | 09/19/1978 |
| 4103699 | Fluid cylinder mounted lock out valve device A lock out for fluid cylinders, such as hydraulic cylinders operating farm machinery, which prevents the supported load from dropping and provides a lock out valve independent of the ordinary control valve used with the cylinder. The lock out unit mounts ... | 08/01/1978 |
| 4102523 | Vehicle sewage hose support system A sewage hose support system for recreational vehicles of a type using an elongated sewage hose leading to a sewer pipe. The system having an elongated support assembly module, having upwardly facing hose-engaging surfaces for engaging the right and left ... | 07/25/1978 |
| 4058135 | Compensated work port fluid valves and work port compensators A compensated work port fluid valve is provided wherein a directional control valve having an inlet chamber, an outlet chamber and a work chamber is provided with a compensator valve connected to the work chamber and having a pressure sensing compensator ... | 11/15/1977 |
| 4051764 | Hydraulic actuating system In order to automatically switch an open circuit type hydraulic actuating circuit to the meter-in flow control system when the direction of the load is positive or to the meter-out control system when the direction of the load is negative or is reversed t... | 10/04/1977 |
| 4040438 | Control valve with flow control means A control valve having a pair of service passages for connection with the opposite sides of a reversible fluid motor, wherein a flow control valve for each service passage restricts exhaust flow therethrough to prevent the pressure thereof from exceeding ... | 08/09/1977 |
| 4009642 | Differential pressure sensing valve A differential pressure sensing valve has an axially shiftable spool including axially-spaced spool areas on which a pair of pressure sources connectable with such valve act in a predetermined direction with spool shifting force. Biasing means normally bi... | 03/01/1977 |
| 4008731 | Counterbalance valve A counterbalance valve assembly for controlling the lowering of an actuator driven load including a housing with a passage connected to deliver fluid to or from one side of the actuator. A main pilot-operated lock check valve is provided in this passage t... | 02/22/1977 |
| 4008875 | Sequence valve for clamping apparatus A fluid control valve which operates accurately in response to the pressure difference that exists between a pair of ports in the valve. The valve features a spool which is normally biased to one control position wherein it remains with the sensed pressur... | 02/22/1977 |
| 3980001 | Reversing valve operated by a pilot valve A reversing slide valve for a hydraulic motor is operated by a pilot slide in a common valve body with the main slide, the latter being biased toward an intermediate position by springs and entraining the pilot slide when moving from the intermediate to e... | 09/14/1976 |
| 3977424 | Differential pressure regulator valve for a hydrostatic transmission control system An improved differential pressure regulator valve for a hydrostatic transmission control system wherein the valve regulates high fluid pressure versus low fluid pressure and produces a pressure differential that in turn controls the transmission. The regu... | 08/31/1976 |
| 3967636 | Valve for force-reversing modulator A control valve for use with a force-reversing modulator in a vehicle adaptive braking system is disclosed. The valve includes a housing divided into a first section connected to one side of the modulator, a second connected to engine manifold vacuum, and... | 07/06/1976 |
| 3964505 | Power transmission A directional valve for hydraulic power transmission systems of the closed center type has a spool for directing fluid from inlet to either of two motor ports through one or the other of a pair of check valves for holding the load against dropping. A seco... | 06/22/1976 |
| 3952763 | Sequence control valve A control valve providing various predesignated output signals in response to changes in the pressure of a fluid input signal including a position responsive member mounted for operative connection with such fluid input signal for movement to various posi... | 04/27/1976 |
| 3951162 | Control valve with flow control means A control valve having a pair of service passages for connection with the opposite sides of a reversible fluid motor, wherein a flow control valve for each service passage restricts exhaust flow therethrough to prevent the pressure thereof from exceeding ... | 04/20/1976 |
| 3933167 | Pilot operated check valve A pilot operated check valve having pressure actuated poppet valves positioned to limit flow in one direction through each of two flow paths through the valve, each poppet valve including a one-way check valve to control reverse flow through the two flow ... | 01/20/1976 |
