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United States Patent | 5,196,217 |
Julian ,   et al. | * March 23, 1993 |
A knife assembly for a potato slicing machine used in slicing potatoes into waffle or lattice cut sections includes an elongated, corrugated knife and inner and outer clamping members for clamping the knife therebetween. The inner and outer clamping members each have a plurality of parallel, tapered fingers which extend toward a cutting edge of the knife along grooves in one side of the knife, thereby to support both sides of the knife and lift potato surfaces away from such side and any potential interfering edges which might shear away portions of the cut potato surfaces. A unique potato product formed using such knife assembly is a potato section having a peak to peak thickness of about 4/16 to 10/16 inch. The section has opposite sides, each with longitudinal ridges and grooves therebetween. The ridges and grooves of one side are disposed at an angle to those of the other. The section also has a grid of openings formed therein. The product when parfried has a solids content of about 25-65% and an oil content of about 6-20%, by weight. The section is prepared from a whole potato by slicing the same with a corrugated knife along two parallel planes but from different cutting directions, to form a potato section. The section is then blanched, dried, parfried in oil and frozen.
Inventors: | Julian; John C. (Tualatin, OR); Sloan; Jerry L. (Tigard, OR); Wheeler; Lee A. (Tigard, OR) |
Assignee: | Lamb-Weston, Inc. (Kennewick, WA) |
[*] Notice: | The portion of the term of this patent subsequent to June 26, 2007 has been disclaimed. |
Appl. No.: | 790002 |
Filed: | November 4, 1991 |
Intern'l Class: | A23L 001/217 |
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Exhibit A--"McCain Foods, Inc.'s Memorandum in Support of Motion for Leave to Amend its Answer to Include a Counterclaim" (May 16, 1991). Exhibit B--"Reply Memorandum of Defendant McCain Foods, Inc. in Support of its Motion for Leave to Amend its Answer" (Jun. 7, 1991). Exhibit C--"Deposition of Edger M. Matsler" (with Dep. Ex. 1-35, 53, 54) (Apr. 23, 1991). Exhibit D--"The Deposition of Murray Jayne" (Jul. 9, 1991). Exhibit E--Letter (Feb. 23, 1980), Jayne to Blakely. Exhibit F--Letter (Mar. 5, 1980), Jane to Blakely. Exhibit G--Letter (Mar. 13, 1980), Jayne attorney to Blakely. Exhibit H--Letter (Apr. 11, 1980), Jane to Blakely. Exhibit I--Letter (Feb. 13, 1981), Jayne to Blakely. Exhibit J--Jayne patent application. Exhibit K--"Deposition of William Riley Matsler"(Jun. 21, 1991). "Dynamic 3-Line Mechanization," Food Engineering, pp. 118-121 (May 1955). "Surface Texturization of Extruded and Preformed Potato Products by a Three-Step, Dry-Stream Dry Process," J. Food Science (1978). "Potato Processing," Chapters 11 and 20. "Urschel Model CCL Lattice Slicer" Manual, pp. 1-11. Exhibit L--Reply Memorandum in Support of Defendant McCain Foods, Inc.'s Motion to Compel Discovery from Plaintiff Lamb-Weston, Inc. Exhibit C1--Transcript of Edgar Matsler deposition of Nov. 15, 1991. Exhibit M--McCain's Memorandum in Support of Defendant's Motion to Compel. Exhibit N--Reply Memorandum in Support of Defendants' Motion to Compel. and Exhibit O--Lamb-Weston's Opposition to Defendants' Motion to Compel. Exhibit P--Defendants' Memorandum in Support of Motion for Summary Judgment on Plaintiff's Patent Infringement Claim (May 22, 1992). Exhibit Q--Defendants' Statement of Specific Facts in Support of Motion for Summary Judgment on Plaintiff's Patent Infringement Claim (May, 22, 1992). Exhibit R--Defendants' Memorandum in Support of Motion for Summary Judgment on Plaintiff's Trademark and Unfair Competition Claims (May, 21, 1992). Exhibit S--(Court's) Order Denying Motion for Summary Judgment (Jul. 13, 1992). Exhibit T--Defendants' Memorandum in Support of Their Motion to Reconsider (Jul. 22, 1992). Exhibit U--(Court's) Order Denying Defendants' Motion to Compel and Plaintiff's Motion to Exclude Evidence (Jul. 23, 1992). Exhibit V--(Defendant's) Motion to Reconsider (Aug. 10, 1992). Exhibit W--(Court's) Order Denying Motion for Reconsideration of Order Denying Motion to Compel (Aug. 25, 1992). |