George J Gatecliff Deceased18224 Salem St, Detroit, MI 48219

6941761, Sep 13, 2005

Jun 9, 2003

10/457190

George W. Gatecliff - Saline MI, US
William T. Horton - Manchester MI, US

Tecumseh Products Company - Tecumseh MI

F25B021/02
F25B021/00
F25B013/00
F25B001/00
F25B043/00

62 33, 62 31, 62 32, 62498, 62503, 623242, 623246

A compressor having a housing with a compression mechanism mounted therein. A suction fluid passageway is located in the housing through which the compression mechanism receives refrigerant fluid. A thermoelectric device is in thermal communication with refrigerant fluid substantially at suction pressure in the suction fluid passageway. The thermoelectric device receives thermal energy from the suction fluid passageway and refrigerant fluid therein with the thermal energy being transferred from the compressor assembly.

2004000, Jan 8, 2004

Jun 16, 2003

10/462194

George Gatecliff - Saline MI, US
David Brower - Beaver Dam WI, US
Gordon Rado - Plymouth WI, US
Keith Novak - Depere WI, US

F01L009/04

123/090110

A piezoelectric valve actuation system for an internal combustion engine includes a piezoelectric driver in the form of a pre-stressed wafer or strip including a layer of piezoceramic material such as lead zirconate titanate (PZT). The driver has a central portion which includes an aperture for direct engagement with a valve stem so that the valve is moved between open and closed positions directly by the piezoelectric driver. The piezoelectric driver can have end portions which attach to the engine cylinder head proximate the valve location. The piezoelectric actuator is driven by an electronic control module (ECM) providing electrical signals to control valve operation based various engine parameters along with user input.

3985475, Oct 12, 1976

Feb 20, 1974

5/443976

George W. Gatecliff - Saline MI

Tecumseh Products Company - Tecumseh MI

F02B 7526

417539

An expansible chamber device with offset pistons and a crankshaft having crankpins asymmetrically angularly spaced about its axis of rotation to provide symmetrically spaced peaks in the total torque at the crankshaft throughout each complete revolution thereof.

6168404, Jan 2, 2001

Dec 16, 1998

9/212340

George W. Gatecliff - Saline MI

Tecumseh Products Company - Tecumseh MI

F04C 1800

418 555

A scroll compressor assembly including a first scroll device having a first involute wrap element projecting from a first substantially planar surface, a second scroll device having a second involute wrap element projecting from a second substantially planar surface and a third surface facing oppositely the second surface, the first and second scroll devices adapted for mutual engagement with the first involute wrap element projecting toward the second surface and the second involute wrap element projecting toward the first surface, the first surface positioned substantially parallel with the second surface, whereby relative orbiting motion of the first and second surfaces compresses fluids between the involute wrap elements, a first source of a first fluid under a pressure intermediate suction pressure and discharge pressure and located between the first and second scroll wrap elements, a frame partly defining a chamber containing a quantity of a second fluid under pressure, and a valve in fluid communication with the first source of the first fluid and a second source of the second fluid substantially at the discharge pressure, the chamber and the second source out of communication in a first valve position, the chamber and the second source in communication in a second valve position, the valve activated by the fluid pressure of the first source, whereby the first and second scroll wrap elements are maintained in controlled axial sealing engagement against the second and first surfaces, respectively.

4834632, May 30, 1989

Jan 25, 1988

7/147817

George W. Gatecliff - Saline MI
Edwin L. Gannaway - Adrian MI

Tecumseh Products Company - Tecumseh MI

F04B 3910

417534

A scotch yoke compressor assembly is disclosed wherein four radially disposed pistons reciprocate in cylinders defined in a crankcase. In a central portion of the crankcase, a scotch yoke mechanism operably couples the pistons to an eccentric portion on a rotating crankshaft. Each piston includes suction ports extending therethrough and a suction valve on the piston head. The suction valve is operably retained on a piston head and the piston is attached to a yoke member by a single bolt. The bolt head is received within a recess coined in a valve plate interposed between the crankcase and a cylinder head cover. Circularly arranged discharge ports in the valve plate are opened and closed by an annular discharge valve guidedly retained against the valve plate at diametrically opposed locations, by a combination of guide pins and an annular retainer member. The retainer member rides on the guide pins and is biased against the cylinder head cover and the discharge valve to permit extended lift during high mass flow rates and slugging.