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:
Aug. 31, 1999
Filed:
Apr. 07, 1994
Applicant:
Inventors:
John Wise, Hamilton, OH (US);
Larry L Martin, Hamilton, OH (US);
Assignee:
Advanced Drainage Systems, Inc., Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
425391 ; 15624413 ; 156429 ; 156431 ; 425325 ; 425402 ; 425505 ;
Abstract
An improved former assembly which can be used in the manufacture of plastic pipe with the former assembly comprising a plastic pipe former assembly having a housing, a center tube supported on the housing, and a plurality of rollers oriented about the center tube, with the improvement comprising a plurality of universal joint assemblies each having a first end and a second end, each of the first ends being connected to the housing and each of the second ends being connected to one of the rollers.