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. 18, 1981
Filed:
Aug. 23, 1979
Applicant:
Inventor:
Edmond Michel, Brussels, BE;
Assignee:
Solvay & Cie. (Societe Anonyme), Brussels, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
425392 ; 264532 ; 425154 ; 425529 ;
Abstract
Device for the longitudinal drawing of thermoplastic preforms possessing a closed base and an open neck during the blow moulding of these preforms comprising a rod introduced in the preforms through their open neck and arranged so as to exert a controlled axial thrust on the base of the preforms in which the drawing rod is provided with slots and is actuated by a driving sleeve in which it can slide and with which it is rendered integral by means of retractable wedges housed in the slots and held in place by means of calibrated springs.