Gerald I Johnson

US Patent:

20140048033, Feb 20, 2014

Filed:

Aug 20, 2012

Appl. No.:

13/589216

Inventors:

DEVIN R. HESS - Burton MI, US
GERALD F. JOHNSON - Farmington Hills MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

F02F 1/24
B32B 15/01
B22D 19/00
B32B 3/10

US Classification:

1231935, 428596, 164112

Abstract:

A cylinder head is formed by positioning a clad preform including a first and second layer in a casting die cavity with the second layer in communication with the die cavity and the first layer facing outwardly to define a combustion surface. Molten material provided to the die cavity is solidified to form a cast portion metallurgically bonded to the second layer. An aperture of the preform forms a port in fluid communication with a passage of the cast portion. A plurality of dome-shaped preforms may define the combustion chambers of a cylinder head formed by the method. The preform may define a cylinder head face. The first layer may be a steel-based layer, and the second layer and cast portion may be aluminum-based, such that the first layer and combustion surface has higher thermal fatigue strength relative to the cast portion.

US Patent:

45344604, Aug 13, 1985

Filed:

Jan 14, 1983

Appl. No.:

6/457970

Inventors:

James T. Graham - Rochester MI
Gerald E. Johnson - Flint MI

Assignee:

Lamb Technicon Corp. - Warren MI

International Classification:

B65A 4784

US Classification:

198482

Abstract:

A pocket conveyor, specifically a pocket elevator, in which a plurality of spools are cantilevered from an endless drive chain. The spools cooperate with each other and with stationary guide rails to form a series of pockets for conveying workpieces between feed and discharge stations. Various embodiments of the feed station include a starwheel rotating in synchronism with urging workpieces into recesses between the starwheel fingers. This guide surface has a clearance at the inlet and which cooperates with deformable construction of the starwheel fingers to prevent workpiece jam at the feed station. Another embodiment of the feed station includes a flat angulated surface for receiving workpieces by gravity and a flexible reach of chain extending at an angle toward the workpiece surface for automatically accommodating itself to workpiece availability without jamming. The discharge station includes a second starwheel with fingers which enter successive pockets and displace workpieces therefrom.

US Patent:

45518807, Nov 12, 1985

Filed:

Oct 20, 1983

Appl. No.:

6/543629

Inventors:

Gerald E. Johnson - Flint MI

Assignee:

Lamb Technicon Corp. - Warren MI

International Classification:

A47L 514

US Classification:

15302

Abstract:

A vertical workpiece cleanser and dryer which includes a pair of chain-driven pocket elevators disposed in adjacent wash and rinse towers on bases which enclose associated wash and rinse solution reservoirs. Each elevator includes a plurality of spools cantilevered from a drive chain and extending in a vertical upwardly directed reach through a solution (wash or rinse) spray zone and then through an air spray zone for removing solution from the workpiece and elevator spools. The elevator within the solution spray zone is closely encompassed by a surrounding shroud for limiting volume available for expansion of sprayed solution, and thus reducing the tendency of the sprayed solution to vaporize. Vertical orientation of the elevator and alignment of the solution and air spray zones promote downward flow of excess solution through the solution spray zone for enhanced flush-washing of the workpieces, and return of excess solution to the associated reservoir disposed therebeneath. This downward solution flow is enhanced and promoted by closed circulation of drying air, which is directed onto the workpieces at a pressure of less than two atmospheres so as to reduce tendency of the solution removed from the workpieces to vaporize.