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:
Nov. 03, 1981
Filed:
Jun. 16, 1980
Edward P Savolskis, Carlisle, PA (US);
Walter W Scott, Carlisle, PA (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
Apparatus for making holes through a layer of glass batch to enhance run-off of liquid includes a plurality of tapered members adapted for vertical reciprocation to penetrate the batch layer. At least a lower portion of each member is provided with a three-dimensioned shape corresponding generally to the shape of a hole to be produced in the batch layer, the shape having a relatively wide upper portion and a relatively narrow lower portion with tapering side surfaces therebetween oriented to produce lateral compaction of batch upon vertical insertion into the batch layer. At least a lower portion of each member is provided with a three-dimensional shape corresponding generally to the shape of a hole to be produced in the batch layer, the shape having a relatively wide upper portion and a relatively narrow lower portion with tapering side surfaces therebetween oriented to produce lateral compacting of batch upon vertical insertion into the batch layer.