Patents Assigned to Spread Spectrum
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Patent number: 5571084Abstract: A human lactation system allowing hands free operation and full mobility during use. All required hardware is attached to a user worn vest. The vest is fully adjustable to accommodate a wide variety of sizes and shapes of users. A pair of breast cups are mounted within the vest to provide an interface between the breast and vacuum system. Vacuum quick connect fittings and quick release valves are attached to the breast cups for convenience and safety. A vacuum pump assembly is mounted in the front side of the vest and fluidly connected to the breast cups thereby providing vacuum to extract lactate from a breast. The vacuum magnitude and cycle frequency are controlled by a microprocessor contained within the keypad/controller assembly. The microprocessor controlled vacuum cycle closely mimics an infant's natural sucking frequency. The system is powered by a battery pack attached to the back side of the vest.Type: GrantFiled: December 12, 1994Date of Patent: November 5, 1996Assignee: Spread Spectrum Inc.Inventor: William R. Palmer
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Patent number: 5568796Abstract: A rotary device employs an outer housing having an interior surface with a central axis associated therewith, an outer hub assembly, disposed inside said outer housing, having a central axis associated therewith located at a distance from the central axis of the outer housing, an inner hub, disposed inside the outer hub assembly, having a central axis associated therewith and being substantially coaxial with the outer housing, and a plurality of blades, hingedly connected at one end to the inner hub and radiating through the outer hub assembly to contact the interior surface of the outer housing at the other end of the blades, whereby a plurality of relatively airtight compartments are formed between the interior surface of the outer housing, the outer hub assembly, and pairs of blades, with the volume of said compartments varying as a function of the rotative position of the inner hub and outer hub assembly.Type: GrantFiled: August 13, 1994Date of Patent: October 29, 1996Assignee: Spread SpectrumInventor: William R. Palmer
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Patent number: 5564648Abstract: A high altitude launch platform, used to launch a payload into earth orbit, is part of a payload launch system having a payload launching rocket with an engine carried by the high altitude launch platform. A first amount of fuel, substantially less than the capacity of the fuel tanks, is provided to the fuel tanks of the engines for the launch platform while the launch platform is on the ground. The launch platform is flown to a first altitude and the fuel tanks are provided with a second amount of fuel while the high altitude launch platform is at the first altitude. The addition of the second amount of fuel is sufficient to allow the payload to be launched into orbit.Type: GrantFiled: July 19, 1995Date of Patent: October 15, 1996Assignee: Spread SpectrumInventor: William R. Palmer
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Patent number: 5537974Abstract: A continuous combustion, pinned vane type, positive displacement, rotary compressor and expander engine system comprises a compressor which outputs compressed air, a combustor which effects continuous combustion of a combustion gas mixture containing fuel and compressed air and produces a combustion gas output. An expander is coupled to receive a mixture of combustion gas and an expansion fluid as an expandable working gas. The expander expands the expandable working gas and performs work to cause rotation of an engine output shaft. The engine system includes an expansion fluid flow path having an input port to which the expansion fluid is supplied, and an output port coupled to combine the expansion fluid with the combustion gas as the expandable working gas.Type: GrantFiled: September 29, 1994Date of Patent: July 23, 1996Assignee: Spread SpectrumInventor: William R. Palmer
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Patent number: 5522356Abstract: A continuous combustion, pinned vane type, positive displacement, rotary compressor and expander engine system comprises a compressor which outputs compressed air, a combustor which effects continuous combustion of a combustion gas mixture containing fuel and the compressed air and produces a combustion gas output. An expander is coupled to receive a mixture of combustion gas and an expansion fluid as an expandable working gas. The expander expands the expandable working gas and performs work to cause rotation of an engine output shaft. Each the compressor and the expander comprises a respective pinned vane type, positive displacement, rotary device. The engine system further includes an expansion fluid flow path having an input port to which the expansion fluid is supplied, and an output port coupled to combine the expansion fluid with the combustion gas as the expandable working gas.Type: GrantFiled: September 29, 1994Date of Patent: June 4, 1996Assignee: Spread SpectrumInventor: William R. Palmer
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Patent number: 5489199Abstract: A pinned vane type, positive displacement, rotary device includes a tangentially translatable roller arrangement for sealing each of a plurality of rotatable blades that are pivotally attached to an inner hub and extend through blade spreader elements of an outer hub assembly to contact the interior surface of the device. Each of roller elements on either side of a respective blade is allowed to rotate about its own axis, while the unloaded one of the roller elements is allowed to translate tangentially relative to a circular path described by the outer hub assembly. The sealing arrangement accommodates pivoting of the blade about an axis that passes through the blade in the radial direction from the inner hub to the interior surface of the housing, so that the contact surface between each roller element and its associated blade has no gaps across the surface of the blade between outer hub assemblies.Type: GrantFiled: September 29, 1994Date of Patent: February 6, 1996Assignee: Spread Spectrum, Inc.Inventor: William R. Palmer
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Patent number: 5456424Abstract: A high altitude launch platform, used to launch a payload into earth orbit, is part of a payload launch system having a payload launching rocket with an engine carried by the high altitude launch platform. A first amount of fuel, substantially less than the capacity of the fuel tanks, is provided to the fuel tanks of the engines for the launch platform while the launch platform is on the ground. The launch platform is flown to a first altitude and the fuel tanks are provided with a second amount of fuel while the high altitude launch platform is at the first altitude. The addition of the second amount of fuel is sufficient to allow the payload to be launched into orbit.Type: GrantFiled: March 22, 1994Date of Patent: October 10, 1995Assignee: Spread SpectrumInventor: William R. Palmer
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Patent number: 5427068Abstract: A rotary device employs an outer housing having an interior surface with a central axis associated therewith, an outer hub assembly, disposed inside said outer housing, having a central axis associated therewith located at a distance from the central axis of the outer housing, an inner hub, disposed inside the outer hub assembly, having a central axis associated therewith and being substantially coaxial with the outer housing, and a plurality of blades, hingedly connected at one end to the inner hub and radiating through the outer hub assembly, whereby a plurality of relatively airtight compartments are formed between the interior surface of the outer housing, the outer hub assembly, and pairs of blades, with the volume of said compartments varying as a function of the rotative position of the inner hub and outer hub assembly.Type: GrantFiled: September 4, 1992Date of Patent: June 27, 1995Assignee: Spread SpectrumInventor: William R. Palmer
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Patent number: 5295642Abstract: A high altitude launch platform, used to launch a payload into earth orbit, is part of a payload launch system having a payload launching rocket carried by the high altitude launch platform. A first amount of fuel, substantially less than the capacity of the fuel tanks, is provided to the launch platform while the launch platform is on the ground. The launch platform is flown to a first altitude and the fuel tanks are provided with a second amount of fuel while the high altitude launch platform is at the first altitude. The addition of the second amount of fuel is sufficient to allow the payload to be launched into orbit.Type: GrantFiled: November 8, 1991Date of Patent: March 22, 1994Assignee: Spread Spectrum, Inc.Inventor: William R. Palmer