Frank R Nissel from 850 Jolly Rd, Blue Bell, PA 19422, Phone: 215 646-7130

Sheet Processing System
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US Patent:

6375452, Apr 23, 2002
Filed:

Apr 25, 2000
Appl. No.:

09/557551
Inventors:

Frank R. Nissel - Ambler PA
Assignee:

Welex, Incorporated - PA
International Classification:

B29C 4734
US Classification:

425377, 425308, 425315
Abstract:

A sheet processing system for continuously producing plastic sheet which is continuously supplied to an intermittent take-up device, utilizing a sheet forming apparatus, a conveyor, an accumulator and take-up apparatus, the sheet being fed along the conveyor to an accumulator positioned integrally with the conveyor, the accumulator being controlled in a cyclic operation which provides for the accumulation of the continuously fed sheet material to permit intermittent operation of the take-up apparatus, and the edge trimming of the sheet subsequently to the action of the accumulator.

Apparatus For Measuring And Of Controlling The Gap Between Polymer Sheet Cooling Rolls
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US Patent:

6406285, Jun 18, 2002
Filed:

Oct 21, 1999
Appl. No.:

09/422483
Inventors:

Frank R. Nissel - Ambler PA
Assignee:

Welex Incorporated - PA
International Classification:

B29C 4716
US Classification:

425141, 425150, 425367
Abstract:

An apparatus for heating and extruding a polymeric sheet having a predetermined thickness and introducing it into and through a gap between cooling rolls, measuring directly by laser beam and without reflection the gap between the cooling rolls, and controlling the gap to control minimal pressure on the softened and heat-plastified sheet.

Apparatus And Method For Measuring And Of Controlling The Gap Between Polymer Sheet Cooling Rolls
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US Patent:

6863517, Mar 8, 2005
Filed:

Feb 6, 2002
Appl. No.:

10/068597
Inventors:

Frank R. Nissel - Ambler PA, US
Assignee:

Welex Incorporated - Blue Bell PA
International Classification:

B29C047/16
US Classification:

425141, 425150, 425367
Abstract:

Heating and extruding a polymeric sheet having a predetermined thickness and introducing it into and through a gap between cooling rolls, measuring directly by laser beam and without reflection the gap between the cooling rolls, and controlling the gap to control minimal pressure on the softened and heat-plastified sheet.

Apparatus And Method For Measuring And Of Controlling The Gap Between Polymer Sheet Cooling Rolls
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US Patent:

7172720, Feb 6, 2007
Filed:

Jan 24, 2005
Appl. No.:

11/042750
Inventors:

Frank R. Nissel - Ambler PA, US
Assignee:

Welex Incorporated - Blue Bell PA
International Classification:

G01B 11/00
B29C 47/92
US Classification:

264409, 2642102
Abstract:

Heating and extruding a polymeric sheet having a predetermined thickness and introducing it into and through a gap between cooling rolls, measuring directly by laser beam and without reflection the gap between the cooling rolls, and controlling the gap to control minimal pressure on the softened and heat-plastified sheet.

Method And Apparatus For Making Multiple-Layered Sheets
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US Patent:

39594319, May 25, 1976
Filed:

Dec 19, 1974
Appl. No.:

5/534428
Inventors:

Frank R. Nissel - Ambler PA
Assignee:

Welex, Incorporated - Blue Bell PA
International Classification:

B29D 704
B29F 300
US Classification:

264171
Abstract:

A rod of heat-plastified material is extruded and passed through an adaptor section, during delivery to a sheet extruder. In the adaptor section, another material or substance is fed into the interior of the just-extruded rod, such that, upon the rod subsequently being expanded in one direction, and reduced in thickness in another direction, in a sheet-extruder, a multiple-layered laminate may be provided, in that the substance introduced into the rod may differ from the material of the rod. Variations may be made in the manner of introduction of other material into the rod, in order to obtain various numbers of layers, and desired distributions of introduced material through the rod.

Thickness Control System For An Extrusion Die
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US Patent:

39402215, Feb 24, 1976
Filed:

Sep 10, 1973
Appl. No.:

5/396008
Inventors:

Frank R. Nissel - Ambler PA
Assignee:

Welex Incorporated - King of Prussia PA
International Classification:

B29F 304
US Classification:

425141
Abstract:

A die having a controllable lip opening, through which flowable material is forced to form a sheet, film or tube. Lip opening control means including an elongated member which expands and contracts thermally and adjusts the lip opening to control the product thickness, and heating means is provided for controlling this expansion and contraction.

Food Tray And Method Of Making The Same
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US Patent:

53188101, Jun 7, 1994
Filed:

Dec 30, 1992
Appl. No.:

7/998393
Inventors:

Frank R. Nissel - Ambler PA
Assignee:

Welex Incorporated - Blue Bell PA
International Classification:

B32B 108
B65D 600
US Classification:

428 357
Abstract:

A food container thermoformed from nucleated polyethylene terephthalate sheet. The food container comprises an opaque or colored tray formed from nucleated polyethylene terephthalate in a crystalline state so that the tray remains rigid at elevated temperatures. The food container also comprises a substantially transparent cover formed from nucleated polyethylene terephthalate in an amorphous state. The food container also comprises a hinge that connects the cover to the tray. The method for producing this food container comprises the steps of extruding nucleated polyethylene terephthalate into a continuous sheet; independently controlling the temperature of the mold portions for the cover, tray and hinge components of the food container; thermoforming the nucleated polyethylene terephthalate sheet; maintaining the tray component of the container at a temperature sufficient to crystallize the nucleated polyethylene terephthalate in the tray component; and cooling the cover component of the container to a temperature sufficient to produce nucleated polyethylene terephthalate in an amorphous state.

Food Tray And Method Of Making The Same
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US Patent:

53188110, Jun 7, 1994
Filed:

Dec 30, 1992
Appl. No.:

7/998380
Inventors:

Frank R. Nissel - Ambler PA
Assignee:

Welex Incorporated - Blue Bell PA
International Classification:

B29D 2200
B32B 108
B23K 1510
US Classification:

428 357
Abstract:

A food container thermoformed from co-extruded polyethylene terephthalate sheet, a portion of which contains a nucleating agent. The food container comprises an opaque or colored tray formed from nucleated polyethylene terephthalate in a crystalline state so that the tray remains rigid at elevated temperatures. The food container also comprises a substantially transparent cover formed from non-nucleated polyethylene terephthalate in an amorphous state. The food container also comprises a hinge that integrally connects the cover to the tray. The method for producing this food container comprises the steps of co-extruding nucleated and non-nucleated polyethylene terephthalate into a continuous sheet; independently controlling the temperature of the mold portions for the cover, tray and hinge components of the food container; thermoforming the polyethylene terephthalate sheet; maintaining the tray component of the container at a temperature sufficient to crystallize the polyethylene terephthalate in the tray component; and cooling the cover component of the container to a temperature sufficient to produce polyethylene terephthalate in an amorphous state.