Methods for forming plastic products having beveled peripheral edges of substantially constant geometry

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5213741
SERIAL NO

07725837

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A pattern roll especially adapted to form, in an in-line manner, peripheral edges of an article having substantially constant geometry and the pattern roll's method of fabrication are described. A bounded surface region is defined on at least a portion of a pattern roll's cylindrical surface by means of a number of circumferential and longitudinal (relative to the pattern roll's central axis) segments. Beveled surfaces are formed on these rib segments with the angle formed by the beveled surface of the circumferential segment being less that the angle formed by the beveled surface of the longitudinal segment. Notwithstanding this angular difference as between the beveled surfaces of the circumferential and longitudinal rib segments, when the pattern roll is then rotated in opposition to a platen roll so as to define a nip therebetween, and a molten thermoplastic is extruded into the defined nip, a plastic product having a peripheral beveled edge of substantially constant geometry will be formed.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SOUTHTRUST BANK, N.A.HURST, TX4

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Robbins, III Edward S 459 N. Court St., Florence, AL 35630 125 2720

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 4381906 Apparatus for producing ravioli and the like 12 1981
 
ALLTRISTA CORPORATION (1)
* 4340557 Method of making unfestooned plastic containers from polygonal blanks 21 1980
 
MONSANTO COMPANY (1)
* 4323533 Rotary forming of articles 30 1980
 
JAMES RIVER PAPER COMPANY, INC. (1)
* 4803032 Method of spot embossing a fibrous sheet 125 1987
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2006/0138,689 Apparatus and method for compression molding a chair mat 1 2004
 
OMV Machinery S.r.L. (2)
* 8602767 Cutting unit for a thermoforming machine or press and a thermoforming machine equipped with such cutting unit 0 2011
* 2011/0165,281 CUTTING UNIT FOR A THERMOFORMING MACHINE OR PRESS AND A THERMOFORMING MACHINE EQUIPPED WITH SUCH CUTTING UNIT 1 2011
* Cited By Examiner