Patents by Inventor Vernon D. Roosa
Vernon D. Roosa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4922556Abstract: An improved flushing means is disclosed for use in water tanks such as are for flushing toilets. The flushing means has a water inlet with an improved two-stage valve using inlet line pressure for operating the two stages. A float is movably mounted on the inlet for controlling the valve with a lever operatively coupling the float to the first stage of the valve. A cooperating vertical hollow and floating overflow tube including an adjustable bowl filling siphon controls the tank discharge to the bowl. These improvements to the tank discharge to the bowl are also to be incorporated into the commonly used flapper-type flush valve.Type: GrantFiled: April 17, 1989Date of Patent: May 8, 1990Assignees: Elwyn V. Harp, Glen H. BaronInventor: Vernon D. Roosa
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Patent number: 4842011Abstract: An improved flushing means is disclosed for use in water tanks such as are for flushing toilets. The flushing means has a water inlet with an improved two-stage valve using inlet line pressure for operating the two stages. A float is movably mounted on the inlet for controlling the valve with a lever operatively coupling the float to the first stage of the valve. A cooperating vertical hollow and floating overflow tube including an adjustable bowl filling siphon controls the tank discharge to the bowl. These improvements to the tank discharge to the bowl are also to be incorporated into the commonly used flapper-type flush valve.Type: GrantFiled: November 9, 1987Date of Patent: June 27, 1989Assignees: Elwyn V. Harp, Glen H. BaronInventor: Vernon D. Roosa
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Patent number: 4567872Abstract: A cam shaft operated fuel injector having an elongated fuel injection nozzle, a linear pumping plunger with an axis normal to the axis of the nozzle in two embodiments and parallel to the axis of the nozzle in three embodiments and ball check valve means for the pumping plunger arranged to minimize the high pressure chamber volume and to simplify the design and assembly of the unit injector. One embodiment employs an inlet metering valve, another embodiment employs end of injection spill control and another embodiment is adapted for receiving a metered charge of fuel from a separate low pressure distributor pump having a governor controlled linear metering valve and a sleeve like distributor rotor surrounding the metering valve.Type: GrantFiled: September 26, 1983Date of Patent: February 4, 1986Assignee: Stanadyne, Inc.Inventor: Vernon D. Roosa
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Patent number: 4388736Abstract: An improvement is described for a tank type toilet flushing system. A positive coupling is provided between the flushing handle and the tank emptying flushing valve including a rigid flush control rod. This permits the flush to be terminated at will and before the flush tank is completely emptied. The flush control rod has a bent, length adjusting section, and a bent section for removably mounting a float.Type: GrantFiled: June 4, 1981Date of Patent: June 21, 1983Inventors: Peter V. Roosa, Vernon D. Roosa
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Patent number: 4341238Abstract: An improved flushing device is disclosed for use in tanks such as are used for flushing toilets. The flushing device has an inlet means including an improved two-stage valve which uses inlet line pressure in operating each of the two stages. A float is movably mounted on an inlet fixture for use in controlling the tank filling operation with a lever operatively coupling the float to the first stage of the valve. A vertical hollow overflow tube including a bowl filling aperture cooperates with a liquid operated variable buoyancy means on the float and alternatively a tube connects the inlet means with an overflow tube.Type: GrantFiled: June 3, 1981Date of Patent: July 27, 1982Inventors: Vernon D. Roosa, Peter V. Roosa
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Patent number: 4259059Abstract: An extension lighter is described for the ignition of hard to reach material such as fireplaces, grills and the like. A conventional self contained lighter having a switch-on and switch-off control is mounted on an extension comprising a lighter holder and an operating arm or plunger. The lighter is removably mounted on one end of the holder and a trigger grip is provided permitting the user to both ignite and to extinguish the lighter by means of the plunger without directly operating the lighter itself.Type: GrantFiled: August 15, 1979Date of Patent: March 31, 1981Inventors: Vernon D. Roosa, Peter V. Roosa
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Patent number: 4163521Abstract: A fuel injector for an internal combustion engine has an inlet member provided with an enlarged transverse opening which receives a tubular nozzle body having a peripheral shoulder to locate the inlet member longitudinally on the nozzle body. A shallow annular groove is formed around the periphery of the nozzle body in alignment with the fuel feed passage of the inlet member to provide a restricted annulus for delivering fuel to the interior of the nozzle body. The tubular nozzle body includes a plurality of inlet ports which communicate with the restricted annulus and are angularly spaced from the fuel feed passage so that the restricted annulus serves as a filter to remove solid particles entrained in the fuel. The inlet member is shrunk or press fit on the nozzle body without welding and a cap member provides a spring chamber to mount a spring which biases the valve against its seat and the inlet member against the shoulder.Type: GrantFiled: November 25, 1977Date of Patent: August 7, 1979Assignee: Stanadyne, Inc.Inventor: Vernon D. Roosa
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Patent number: 4100903Abstract: The disclosed liquid fuel injection pump is suited for the delivery of measured charges of liquid fuel under high pressure sequentially to the cylinders of an associated engine and includes a free piston type plunger reciprocably mounted in a pump chamber, wherein the charges are pressurized to high pressure, a stop for the pump plunger to limit the maximum volume of the chamber, a hub mounting a plurality of rollers to engage the camming surface of a tappet interposed between the plungers and the rollers to drive the pump plungers in a direction to reduce the volume of the pump chamber, and hydraulic means to power said pump plunger in the opposite direction.Type: GrantFiled: December 13, 1976Date of Patent: July 18, 1978Assignee: Stanadyne, Inc.Inventor: Vernon D. Roosa
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Patent number: 3982556Abstract: An improved tank flushing system is described for use with a toilet bowl or other flushed system. An inlet valve for the tank includes a valve stem which is opened by a flush lever and which is closed by the force of the inflowing water under the control of a float. The outflow of the flushing water from the tank for the flushing operation is controlled by a flush valve comprising a flexible sealing member mounted on the tank bottom and coupled to a float. The flush valve is opened as the sealing member is lifted by the flush lever and remains opened under the control of the float until a predetermined volume of flush water has flowed from the tank.Type: GrantFiled: September 26, 1974Date of Patent: September 28, 1976Inventor: Vernon D. Roosa