John M Brewer

US Patent:

6372093, Apr 16, 2002

Filed:

Apr 26, 2001

Appl. No.:

09/843561

Inventors:

John R. Brewer - Hillsboro OR

Assignee:

Wilbanks International, Inc. - Hillsboro OR

International Classification:

D21F 154

US Classification:

162352, 162374

Abstract:

An adjustable foil apparatus for papermaking machines is described in which a pair of rigid foil members are mounted in a pair and are pivotable about substantially parallel longitudinal axes in mirror image fashion to provide selected angularity therebetween. A common operating mechanism is attached to both of the adjustable angle foils in the pair, such that actuation of the operating mechanism produces concurrent mirror image pivoting of the foils in the pair.

US Patent:

50193074, May 28, 1991

Filed:

Mar 3, 1989

Appl. No.:

7/319652

Inventors:

John R. Brewer - Hillsboro OR
Joseph M. Swenson - Forest Grove OR
Reginald R. Maas - Newberg OR

Assignee:

Coors Ceramic Company - Golden CO

International Classification:

C04B 3564

US Classification:

264 67

Abstract:

A method and apparatus for the manufacture of hollow ceramic beams are described using a plurality of substantially parallel spaced mandrels mounted within a flexible mold bag which is filled with ceramic forming powder and compressed within an isostatic press to produce a compressed body of powder. A sliding spacer shoe slides along the mandrels during filling as the powder is vibrated for compaction to maintain the mandrels in a predetermined spaced relationship. The mandrels are removed from the compressed body and it is machined to the proper dimensions before firing in a kiln to sinter the body into a hollow ceramic beam. The ceramic beam includes internal support partitions formed integral with the outer walls of the beam by web portions of the body produced between the mandrels. A pair of end pads of rigid, high density foam, such as polyurethane, are positioned over the opposite ends of the mandrels to inhibit the flow of ceramic powder into the gaps between the ends of the mandrels during pressing in order to provide uniform compression of powder in the web portions between the mandrels. Release pads of elastomer material are provided between end pads from the compressed body when the pressure is reduced to normal after pressing.

US Patent:

D2727544, Feb 21, 1984

Filed:

Nov 12, 1981

Appl. No.:

6/320423

Inventors:

John H. Brewer - Poway CA

International Classification:

D2102

US Classification:

D21234