Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 450,381
Bung Wrench
Improvements in Apparatus For Withdrawing Bungs or Shives
Patentee:
John Smith (exact or similar names) - Burton-On-Trent, England

USPTO Classifications:
81/3.37, 81/3.49

Tool Categories:
wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. E. Halford
H. Macdonald
Charles John Dredge
George Christopher Fordham

Patent Dates:
Applied: Aug. 06, 1889
Granted: Apr. 14, 1891

Patent Pictures:
John Smith patent April 14, 1891
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Description:
The tool had been patented in Britain on July 22, 1889 (No. 11,672) and in Germany on July 31, 1889 (no. 52,499).

The working portion includes an extractor which is driven into the bung, and a cam-lever which is struck by a mallet to lift the bung.

Copyright © 2002-2024 - DATAMP