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. 24, 1977
Filed:
Nov. 10, 1975
Francis D Logan, Houston, TX (US);
Leonard M Dybala, Houston, TX (US);
Camco, Incorporated, Houston, TX (US);
Abstract
A drilling machine having a base supporting a pair of ways on which moves a drill tool support having a drill spindle for holding a drill tool. A hydraulic piston and cylinder assembly positioned on each side of the drill spindle for moving the tool support along the ways. A workpiece holding chuck is positioned in the middle of the support ways and the drill spindle and hydraulic piston and cylinder assemblies are positioned in the same plane with the ways for preventing torque being applied to a drill tool and maintaining axial drilling forces on the drill spindle thereby allowing a drill to drill a straight hole in a workpiece held in the holding chuck. A control system is provided for supplying fluid to the piston and cylinder assemblies, but all of the drilling forces are carried by the piston and cylinder assemblies. In addition, means are provided for monitoring the drilling pressure applied to the piston and cylinder assemblies for indicating the drilling pressure and for automatically stopping drilling when a predetermined pressure is reached.