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.

Date of Patent:
Oct. 19, 1999

Filed:

Apr. 10, 1998
Applicant:
Inventor:

Dick van Manen, Canandaigua, NY (US);

Assignee:

Cambridge Industries, Inc., Madison Heights, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B26D / ;
U.S. Cl.
CPC ...
83 54 ; 83188 ; 83192 ; 83946 ;
Abstract

A process for cutting hollow molded plastic parts uses two knife cuttings in sequence. A first knife blade (42) is pressed on an uncut hollow molded plastic part for cutting therethrough with a guillotine blade action to form an access hole (46, 48) in the plastic part (10). The plastic part (10) may be secured onto a clamp (34, 36) for the first guillotine blade action. An outer support clamp (50, 52) is then secured about the plastic part with an outer side of the support clamp being positioned in proximity to the finished cut edge (65) of a finished plastic part. A mandrel (54) is inserted into the access hole (46, 48) of the part. The inner end of the mandrel is axially spaced from the outer side of the support clamp to allow a thin knife blade therebetween. A thin knife blade (62, 64) then cuts off the rough edge (47) to provide a finished cut edge (65) in the plastic part axially interposed between the outer side of the support clamp and the inner mandrel.


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