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:
Sep. 01, 1981
Filed:
Jan. 09, 1980
Applicant:
Inventors:
Robert L Gagliano, Glendale, CA (US);
Herman G Feuerstein, Hacienda Hts., CA (US);
Assignee:
Dresser Industries, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
408 79 ; 408 10 ; 408 51 ; 408112 ;
Abstract
A self-colleting drill that includes a pair of parallel output shafts arranged to drive a pair of drill bits and means for retaining the work piece against a foot member of the drill so that the holes will be spaced therein in accordance with the spacing between the drill bits or shafts. A plurality of drill guide members having varying hole spacings therein, provide a variety of center distances between the shafts that extend therethrough. A plurality of foot members are also provided that have mating hole spacings to the drill bushings providing for the variable drill bit spacing.