US Patent: 268,408 - Wrench For Bung Bushings


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


Quick search:	Patent number:	Patent Date:

US Patent: 268,408

Wrench For Bung Bushings

Patentee:

William W. Jackson (exact or similar names) - Chicago, IL

USPTO Classifications:

81/445

Tool Categories:

wrenches

Assignees:

William J. Jackson - Chicago, IL

William B. La Parle - Chicago, IL

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Sep. 29, 1882
Granted:	Dec. 05, 1882

Patent Pictures:

William J. Jackson patent December 5, 1882

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz

Description:

The central core has a single vertical slot that allows it to expand outward to grip the inner surface of the bushing as the tapered threaded stem is screwed in.