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:
Feb. 01, 1977
Filed:
Feb. 11, 1976
John A Werner, Milwaukee, WI (US);
Besser Industries, Inc., Roanoke, IL (US);
Abstract
A ball sizing machine for sizing an internal passage in a workpiece in which pressure is employed to force a sizing ball through the passage against a fluid counter-pressure. The opposite ends of a passage to be sized are sealed at each end with a tapered ram plug with the sizing ball within the head end of the passage. The passage is filled with a fluid, such as oil, from the tail end of the passage. When passsage has been filled from the tail end to a predetermined pressure, the system is conditioned to permit a metered flow of fluid out of the tail end when pressure is applied to the head end of the passage in front of the ball to force the ball through the passage.