Interrogation gate for an electronic article surveillance system

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Description

FIG. 1 is a perspective view of an interrogation gate for an electronic article surveillance system showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a fragmentary cross-sectional view taken along lines 6--6 of FIG. 3.

Referenced Cited
U.S. Patent Documents
D297221 August 16, 1988 Podhrasky
D307400 April 24, 1990 Armstrong et al.
3950696 April 13, 1976 Miller et al.
4274090 June 16, 1981 Cooper
4384281 May 17, 1983 Cooper
Patent History
Patent number: D319195
Type: Grant
Filed: Sep 27, 1988
Date of Patent: Aug 20, 1991
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Inventors: Steven P. Belletire (St. Paul, MN), Stanley T. Gresens (St. Paul, MN), Roland W. Rubertus (St. Paul, MN), Peter J. Zarembo (St. Paul, MN)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Attorneys: Gary L. Griswold, Walter N. Kirn, William B. Barte
Application Number: 7/250,123
Classifications
Current U.S. Class: D10/106; Combined, E.g., Fence And Gate (D25/39)