Robert D Boyle

US Patent:

51292823, Jul 14, 1992

Filed:

Jul 24, 1991

Appl. No.:

7/735298

Inventors:

James H. Bassett - Sycamore IL
Robert E. Boyle - DeKalb IL

Assignee:

Dawn Equipment Company - DeKalb IL

International Classification:

G05G 1300

US Classification:

74529

Abstract:

A mechanism for adjusting the height of a farm implement/tool of the type to be carried by a drawing vehicle includes a connector for supporting a farm implement/tool in an operative position. A guide directs sliding movement of the connector selectively between first and second positions corresponding to raised and lowered positions for a farm implement/tool which is carried by the connector. A mount connects the guide to one of a drawing vehicle and a support to be carried by a drawing vehicle. A lock fastens the connector in one of the first and second positions and selectively releases the connection to allow the connection to be slid into the other of the first and second positions therefor.

US Patent:

43539688, Oct 12, 1982

Filed:

Jul 15, 1981

Appl. No.:

6/283522

Inventors:

Robert E. Boyle - Woodridge IL

International Classification:

H01M 236

US Classification:

429 64

Abstract:

An improvement in a water-filling system for batteries, which protects battery cells from damage caused by hydrogen explosions occurring at other cells, is a check or stop valve, placed in the fluid communication lines between two cells, which allows passage of water, but blocks passage of an explosive shock wave.