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.

Date of Patent:
Aug. 23, 1994

Filed:

Sep. 30, 1992
Applicant:
Inventors:

Alan M Hawley, Ocklawaha, FL (US);

Charles C Mattern, Winter Garden, FL (US);

Assignee:

Earth Resources Corporation, Ocoee, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
408 87 ; 137318 ; 137320 ; 141 51 ; 141 65 ;
Abstract

A tapping assembly comprising a main valve for selectively opening and closing a valve passageway, a support for holding the main valve adjacent a unit to be tapped, a drill for piercing a wall of that unit with the drill including a housing and a cutting element. A coupler is provided with left-hand threads and right-hand threads for easily connecting and disconnecting the drill housing from the main valve, thereby allowing easy replacement of a drill bit. Vents are provided both upstream and downstream of the main valve for permitting controlled removal of the contents of the unit with the main valve closed and for permitting controlled removal of any contents of the unit from the coupler with the main valve closed.


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