IP Library › Granted Patent US 6,921,786
Granted Patent B2
US 6,921,786 · App. 10/675,292 · Granted Jul 26, 2005

Pattern material

Assignee: Precision Metalsmiths, Inc.
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,921,786
App. No.
10/675,292
Granted
Jul 26, 2005
Kind
B2
Abstract

An expendable and machinable pattern material capable of being cast in large blocks without shrinkage and machined to a casting shape useful in the lost pattern process of investment casting, the material consisting essentially of ethylene-vinyl resin, fatty acid ketone, and fatty acid.

Claims (4)

1. An expendable and machinable pattern material capable of being cast and in large blocks and machined to a casting shape useful in the lost pattern process of investment casting, said material consisting essentially of ethylene-vinyl resin, at least 1 fatty acid ketone and at least one fatty acid, the ethylene-vinyl, resin, fatty acid, and fatty acid ketone being present in amounts by weight based on the total weight of the material as follows:

8-15% of ethylene-vinyl resin,

38-62% of at least one fatty acid,

38-62% of at least one fatty acid ketone.

Assignments (3)
SECURITY INTEREST Recorded May 15, 2014
From: CRAFT CAST COMPANY, LLC; AVALON PRECISION CASTING COMPANY, LLC; CRAFT CAST HOLDINGS, LLC
To: THE PRIVATEBANK AND TRUST COMPANY, AS ADMINISTRATIVE AGENT
Reel/Frame 032906/0811 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 12, 2014
From: PRECISION METALSMITHS, INC.
To: AVALON PRECISION CASTING COMPANY, LLC
Reel/Frame 032872/0740 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2003
From: HORTON, ROBERT A.; TETLOW, APRIL R.
To: PRECISION METALSMITHS, INC.
Reel/Frame 014564/0709 →
Continuity (1)
Related Publication 20050070650A1 · Mar 31, 2005