Donald R Daugherty

US Patent:

40169227, Apr 12, 1977

Filed:

Mar 31, 1976

Appl. No.:

5/672524

Inventors:

John H. Simmons - Euclid OH
Donald A. Daugherty - Lyndhurst OH

Assignee:

Precision Metalsmiths, Inc. - Cleveland OH

International Classification:

B29F 106

US Classification:

164 45

Abstract:

Method and apparatus are disclosed for cyclically metering charges of a granulated wax-like or resinous material from a bulk supply and feeding such metered charges into a heated, pressurized reservoir. Each charge of the granulated material is fluidized with a stream of air under pressure to insure flow of the granules. The stream of air also serves to pressurize the reservoir and prevent the escape of hot air therefrom. Cooling of the reservoir inlet to prevent agglutination of the granules also is contemplated.

US Patent:

41238761, Nov 7, 1978

Filed:

Dec 16, 1976

Appl. No.:

5/751261

Inventors:

John H. Simmons - Lyndhurst OH
Donald A. Daugherty - Euclid OH

Assignee:

Precision Metalsmiths, Inc. - Cleveland OH

International Classification:

B24B 1900
B24B 2308

US Classification:

51 34D

Abstract:

An apparatus for cutting off castings from investment cast set-ups comprising a mandrel assembly engageable with the inside of the center tree of the set-up to clamp it with its longitudinal axis in a horizontal plane, a vertically movable carriage support, a carriage movable along the support parallel to the longitudinal axis of the center tree, a cut-off assembly including a horizontal abrasive disc on the carriage, and structure permitting lateral adjustment of the cut-off assembly in a direction normal to that of carriage movement.

US Patent:

RE302252, Mar 11, 1980

Filed:

Mar 6, 1978

Appl. No.:

5/884264

Inventors:

John H. Simmons - Lyndhurst OH
Donald A. Daugherty - Euclid OH

Assignee:

Precision Metalsmiths, Inc. - Cleveland OH

International Classification:

B29F 106

US Classification:

164 45

Abstract:

Method and apparatus are disclosed for cyclically metering charges of a granulated wax-like or resinous material from a bulk supply and feeding such metered charges into a heated, pressurized reservoir. Each charge of the granulated material is fluidized with a stream of air under pressure to insure flow of the granules. The stream of air also serves to pressurize the reservoir and prevent the escape of hot air therefrom. Cooling of the reservoir inlet to prevent agglutination of the granules also is contemplated.