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, 1983
Filed:
Feb. 27, 1981
Douglas D Smith, Conifer, CO (US);
Richard N Cunningham, Littleton, CO (US);
Manville Service Corporation, Denver, CO (US);
Abstract
The present invention concerns stacking of shingles, in particular shingles having one edge portion thicker than the other edge portion. Such shingles require that at least some of the shingles in a stack be oriented to place the thicker edge thereof opposite the thicker edge of the other shingles in the stack to form a neat and easily packaged stack of shingles. Such a stack of shingles must be formed quickly and accurately in order to keep up with the high rate of shingle production. The present invention accomplishes this by permitting selected shingles to be dropped and simultaneously rotated about a longitudinal axis as the shingles drop from one star wheel catcher (20) to another star wheel catcher (30). This rotation takes place by applying a substantial moment to the shingle as it falls by interposing specially shaped flipping fingers (46) in the path of the shingle. These fingers engage the falling shingle initially at an edge remote from the longitudinal axis of the shingle and progressively closer to the longitudinal axis as the shingle begins to rotate in order to provide a rotational moment of adequate magnitude and duration to accomplish the complete inversion of the shingle by the time it reaches a stack forming location.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile