The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 1993
Filed:
Apr. 12, 1991
Applicant:
Inventor:
Roy E LaBounty, Two Harbors, MN (US);
Assignee:
LaBounty Manufacturing, Inc., Two Harbors, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72416 ; 72407 ; 7245302 ; 7245315 ; 2989014 ; 29727 ; 251-7 ;
Abstract
An apparatus for collapsing and crushing heavy-duty steel well casings and similar pipes to terminate flow of liquids such as crude oil therethrough, a housing portion gripping and sealing spaced portions of the casing, casing collapsing rams at opposite sides of the casing and between said portions of the housing and confined within portions of the housing; and a pair of hydraulic cylinders driving the rams inwardly against the casing to collapse it and crush it to reduce and substantially prevent flow of liquid or crude oil through the casing.