Leon Earnest Brown

US Patent:

40063720, Feb 1, 1977

Filed:

Mar 10, 1975

Appl. No.:

5/557109

Inventors:

Leon Henry Brown - Sylmar CA
David H. Peters - Santa Monica CA

Assignee:

Wangco Incorporated - Los Angeles CA

International Classification:

H02K 4102

US Classification:

310 13

Abstract:

Positioning apparatus for moving read-write transducers in data record systems achieves improved stability in the motion and positioning of such transducers with reduced complexity of structure compared with known apparatus of the prior art. A particular structure, including a female dovetail guide surface and a plurality of cooperating sloped guide wheels, one of which is spring-loaded for force balancing, causes a plurality of reference guide wheels to maintain firm and stable contact with a smooth and flat reference surface and assures the desired stable and accurate movement of the carriage.

US Patent:

39530949, Apr 27, 1976

Filed:

Nov 30, 1973

Appl. No.:

5/420663

Inventors:

Leon Henry Brown - Sylmar CA

Assignee:

Wangco Incorporated - Los Angeles CA

International Classification:

A47B 8800
A47B 9600
E05B 300
E05C 316

US Classification:

312303

Abstract:

Apparatus for receiving and driving magnetic disc cartridges as peripheral computer memory units. Particular mechanisms are included which render the apparatus more effective and more compact than previously known corresponding devices of a comparable nature. These mechanisms cooperate to provide means for permitting the apparatus to be withdrawn partially from its mounting rack and for moving an interfering panel member out of the way to permit loading and unloading of the disc cartridge from the top of the apparatus. The mechanisms include releasable latching means and a solenoid controlled lock for preventing release of the latching means except under predetermined positions, plus means for pivoting a lid member to avoid interference with adjacent equipment.

US Patent:

39639681, Jun 15, 1976

Filed:

Apr 22, 1974

Appl. No.:

5/462989

Inventors:

John M. Pierini - Winchester MA
Leon E. Brown - Dallas TX

International Classification:

H01H 4718

US Classification:

317141S

Abstract:

A timing and actuating assembly for a camera to permit time lapse photography includes a solenoid operated shutter release mechanism which is actuated by an electrical pulse derived from a timing circuit. The repetition rate of the pulse is adjustable over a wide range. The timing and actuating assembly is mounted on a bracket for disposition in operative relationship with the camera shutter control. A separate power pack is utilized to provide power for the assembly.