Regan D Wieland

US Patent:

20010035071, Nov 1, 2001

Filed:

Mar 29, 2001

Appl. No.:

09/821213

Inventors:

John Martin - Pewee Valley KY, US
Regan Wieland - Auburn MI, US
Bob Williams - Midland MI, US

International Classification:

B26D001/12

US Classification:

076/107100, 076/115000, 083/013000, 083/663000

Abstract:

A dieboard for diecutting machinery includes a face layer and a backing layer constructed of a resin-impregnated pulp paper sheet material, and a plurality of core layers constructed of a natural wood veneer located between the face and backing layers. The veneer layers adjacent the face and backing layers have a grain direction that is substantially parallel to a longitudinal axis of the dieboard. The layers are then shaped and laminated together to from the dieboard. The resulting dieboard is relatively free of surface defects.

US Patent:

50405896, Aug 20, 1991

Filed:

Feb 10, 1989

Appl. No.:

7/309758

Inventors:

Norbert L. Bradley - Sanford MI
Regan D. Wieland - Auburn MI
William J. Schafer - Saginaw MI
Allen N. Niemi - Houghton MI

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

B22D 1700

US Classification:

164113

Abstract:

A method and apparatus for injection molding a metal alloy wherein the alloy is maintained in a thixotropic, semi-solid state in a reciprocating extruder at temperatures above its solidus temperature and below its liquidus temperature in the presence of shearing and then injected as a thixotropic slurry into a mold to form a useful product. Following completion of the injection molding stroke the nozzle of the extruder is sealed by a solidifying a portion of the residue of the alloy remaining in the nozzle.