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:
May. 18, 1993
Filed:
Oct. 29, 1991
Applicant:
Inventors:
Walter E Wozniak, Prairieville, LA (US);
Terry C Ernst, Prairieville, LA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29254 ; 29275 ; 173 91 ; 173 17 ; 81-32 ;
Abstract
In accordance with the present invention there is provided a pneumatic slide hammer for removing a plug from a tube or other structure including a percussive piston, a housing for containing the percussive piston and for connecting to the plug to be removed from a structure, and a slidable cylindrical valve for controlling the flow of air under superatmospheric pressure to force the percussive piston against to impact against the housing and force the plug from the housing.