US Patent: 3,389,660 - Pump with pressure relief


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 3,389,660

Pump with pressure relief

Patentees:

Richard F. Van Allen (exact or similar names) - Loves Park, IL

Rudolph E. Gerrstrum (exact or similar names) - Rockford, IL

USPTO Classifications:

417/202, 417/299

Tool Categories:

industrial machines : pumps : hydraulic pumps

Assignees:

Greenlee Bros. & Co. - Rockford, IL

Manufacturer:

Greenlee Bros. & Co. - Rockford, IL

Witnesses:

Unknown

Patent Dates:
Applied:	Aug. 15, 1966
Granted:	Jun. 25, 1968

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Greenlee Bros. & Co.

Description:

The Greenlee Nos. 940 and 960 portable hydraulic pumps were used as power sources for hydraulic benders among other purposes. This patent number is listed in a 1970 catalog from Greenlee Tool Co.