Preconditioning cylinder

- Extru-Tech, Inc.
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a left, front and top perspective view of a preconditioning cylinder showing our new design;

FIG. 2 is a right side elevational view thereof, on an enlarged scale;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D280628 September 17, 1985 Besson
2584225 February 1952 Plunguian et al.
3498754 March 1970 Yamashita et al.
3941357 March 2, 1976 Wurtz
3985070 October 12, 1976 Longenecker et al.
4337583 July 6, 1982 Harris
4474475 October 2, 1984 Moriyama
4608261 August 26, 1986 MacKenzie
4752139 June 21, 1988 Hauck
4875847 October 24, 1989 Wenger et al.
Other references
  • Wenger Bulletin 66-177-82, Wenger X-175 Extrusion Cooker. Wenger Bulletin 66-686, Wenger X-185 Cooking Extruder. Wenger Bulletin 31-036-79, Wenger X-200 Continuous Extrusion Cooker. Wenger Bulletin 318-486, Wenger X-175 Cooking Extruder.
Patent History
Patent number: D328003
Type: Grant
Filed: May 30, 1989
Date of Patent: Jul 21, 1992
Assignee: Extru-Tech, Inc. (Sabetha, KS)
Inventors: Kenneth E. Matson (Sabetha, KS), Ernest L. Keehn (Wetmore, KS)
Primary Examiner: Donald P. Walsh
Assistant Examiner: Caron D. Veynar
Law Firm: Litman, McMahon & Brown
Application Number: 7/357,872
Classifications
Current U.S. Class: D/7412; D/7376