1
Richard P Hayes Pankhurst, Brian D Smith: Switches and keyboards. Key Innovations, Shoemaker and Mattare, June 13, 1989: US04839474 (38 worldwide citation)

A low profile switch or keypad has one or more touch buttons of circular or polygonal shape in plan formed integrally with and raised from a surrounding membrane of elastomeric material by a wall of resiliently deformable material of thickness and angle relative to the membrane so that the wall can ...


2
Richard P Hayes Pankhurst, Brian D Smith: Switches and keyboards. NPM International, Shoemaker and Mattare, January 6, 1987: US04634818 (28 worldwide citation)

A low profile switch or keypad has one or more touch pads (14) formed integrally with and raised from a surrounding membrane or key mat (15) of elastomeric material by a wall (30) of resiliently deformable material of thickness and angle relative to the mat (15) so that the wall (30) can flex under ...


3
Richard P Hayes Pankhurst, Graham K Lacy, Christopher E Nightingale: Pump with conveying chamber formed in outer rotor surface. PDD Innovations, Stites & Harbison PLLC, Douglas E Jackson, March 9, 2010: US07674100 (25 worldwide citation)

A pump is formed by a housing (10) having an inlet (11) for connection to a source of fluid and an outlet (12) for pumped fluid. A rotor (15) is rotatable within the housing and the inlet (11) and the outlet (12) are spaced apart around the path of the rotor (15) in the housing. The rotor (15) has s ...


4
Richard P Hayes Pankhurst, Graham K Lacy, Christopher E Nightingale: Pump with conveying chamber formed in outer rotor surface. Quantex Patents, Stites & Harbison PLLC, Douglas E Jackson, April 15, 2014: USRE044841

A pump is formed by a housing (10) having an inlet (11) for connection to a source of fluid and an outlet (12) for pumped fluid. A rotor (15) is rotatable within the housing and the inlet (11) and the outlet (12) are spaced apart around the path of the rotor (15) in the housing. The rotor (15) has s ...


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Richard P Hayes Pankhurst, Graham K Lacy, Christopher E Nightingale: Pumps. Stites & Harbison Pllc, March 9, 2006: US20060051228-A1

A pump is formed by a housing (10) having an inlet (11) for connection to a source of fluid and an outlet (12) for pumped fluid. A rotor (15) is rotatable within the housing and the inlet (11) and the outlet (12) are spaced apart around the path of the rotor (15) in the housing. The rotor (15) has s ...