WILLIAM P HIDDEN
Engineering in Wenham, MA

4259043, Mar 31, 1981

Apr 23, 1979

6/032178

William P. Hidden - Wenham MA
John E. McCullough - Carlisle MA

Arthur D. Little, Inc. - Cambridge MA

F01C 2102

418 55

A thrust bearing/coupling component for use in scroll-type apparatus which may be a compressor, expander, fluid pump or vacuum pump. The resulting apparatus is particularly suited for use as auxiliary equipment in automotive power systems. The component of this invention comprises rotating or oscillating load carrying members, preferably ball bearings, confined within facing indentations cut in the orbiting scroll member end plate surface and an associated surface in a member stationary with respect to the orbiting scroll member. The thrust bearing/coupling component couples the stationary and orbiting scroll members in a predetermined angular relationship and it may be used to carry either expansive or compressive axial loads on the scroll members to achieve efficient radial sealing of the moving scroll fluid pockets while controlling surface wearing so that the scroll apparatus may be operated for an extended period of time without servicing.

4989723, Feb 5, 1991

Feb 6, 1984

6/577361

Robert H. Bode - Wenham MA
William P. Hidden - Wenham MA

The Cambridge Wire Cloth Company - Cambridge MD

B65G 4774, B65G 1706

198635

An endless conveyor belt is assembled of plastic modules having relatively open pintle slots receiving respective connecting rods. The product support surface of the belt is provided by closely-spaced ribs especially well-suited for conveying raw foods and small containers. For transferring product to or from the belt, a transfer plate made-up of closely-spaced, flat-surfaced fingers is provided. The belt is driven and guided by sets of polygonal sprockets having teeth which engage in cavities centrally located on the undersides of the respective belt modules.

5083659, Jan 28, 1992

Oct 11, 1990

7/596000

Robert H. Bode - Wenham MA
William P. Hidden - Wenham MA

The Cambridge Wire Cloth Co. - Cambridge MD

B65G 1706

198853

An endless conveyor belt is assembled of plastic modules having relatively open pintle slots receiving respective connecting rods. The product support surface of the belt is provided by closely-spaced ribs especially well-suited for conveying raw foods and small containers. For transferring product to or from the belt, a transfer plate made-up of closely-spaced, flat-surfaced fingers is provided. The belt is driven and guided by sets of polygonal sprockets having teeth which engage in cavities centrally located on the undersides of the respective belt modules.

4160629, Jul 10, 1979

Jun 17, 1977

5/807414

William P. Hidden - Wenham MA
John E. McCullough - Carlisle MA

Arthur D. Little, Inc. - Cambridge MA

F04C 102

418 55

A liquid immersible scroll pump in which all of the pump components including electric motor drive means are contained within a housing and through which the liquid is pumped at a controlled predetermined pressure. Hydraulic pressure within the pump provides sufficient axial force on the scroll members to enhance radial sealing as well as the tangential sealing of the flanks of the scroll wraps. The pump is particularly suited for low-cost mass production and may be used as a fuel pump, either immersed in the fuel tank of an automobile or mounted outside the tank, to provide fuel under pressure through a line to the engine.

D286932, Nov 25, 1986

Feb 6, 1984

6/577363

Robert H. Bode - Wenham MA
William P. Hidden - Wenham MA

The Cambridge Wire Cloth Co. - Cambridge MD

D34 29

D288408, Feb 24, 1987

Feb 6, 1984

6/577367

Robert H. Bode - Wenham MA
William P. Hidden - Wenham MA

The Cambridge Wire Cloth Company - Cambridge MD

D 8499

3955739, May 11, 1976

Dec 30, 1974

5/537603

Richard L. Markus - Bridgeport CT
William P. Hidden - Wenham MA
Daniel F. Hefler - Concord MA

The Milford Rivet & Machine Company - Milford CT

B21J 1520

227 1

A hydraulically actuated power cylinder reciprocates a driver to exert a compressive force to upset a rivet with the power cylinder's movement being made to correspond to the movement of a pump cylinder by a fluid connection therebetween. The pump cylinder's movements are mechanically actuated according to a programmed cam and actuation is made to occur only during the riveting cycle by a control circuit operating a clutch and brake with the circuit inhibiting operation upon the sensing of a malfunction.

D288255, Feb 10, 1987

Feb 6, 1984

6/577362

Robert H. Bode - Wenham MA
William P. Hidden - Wenham MA

The Cambridge Wire Cloth Co. - Cambridge MD

D34 29