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:
Mar. 09, 1976

Filed:

Jun. 04, 1974
Applicant:
Inventor:

Johan per Svendsen, Kristiansand S, NO;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
4253 / ; 4253 / ; 4253 / ; 4253 / ; 425388 ; 4254 / ; 425397 ;
Abstract

Apparatus for so-called 'in-line' production of hollow articles of thermoplastic material, by blowing or vacuum moulding a sheet strip produced continuously from an extruder and subsequent stamping of the separate articles. The mould tool consists of at least two mould half portions, which is moved along a rectilinear guide and substantially synchronously with the plastic strip. The guide for the mould tool and the direction of the sheet strip extend obliquely downwardly from the extruder nozzle, preferably at an angle to the horizontal plane of 30.degree.-60.degree. . In the zone of the guide path where the mould half portions open, stationary gripping fingers are arranged on both sides of the sheet strip. The fingers are adapted to engage the longitudinal edges of the sheet strip immediately prior to the mould half portions, being separated and to absorb the sheet strip while the mould tool returns for enclosure of a new portion of sheet strip.


Find Patent Forward Citations

Svendsen, Johan. (1976). Apparatus for manufacturing hollow articles, such as bowls, trays, cups (U.S. Patent No. 3942933). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3942933

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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