Housing for a window opening operator

- Lake Country Sales, Inc.
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Description

FIG. 1 is a front and left side perspective view of a housing for a window opening operator showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image of that shown;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D241910 October 1976 Meisner
3085299 April 1963 Roynand
4241541 December 30, 1980 Van Klompenburg et al.
Other references
  • Sweets Catalogue File (1962) Section 17a/Wi p. 15 "Roto Operators" hardware. EntryGard.TM. Dual Arm Operator.
Patent History
Patent number: D333971
Type: Grant
Filed: Feb 13, 1991
Date of Patent: Mar 16, 1993
Assignee: Lake Country Sales, Inc. (Elysian, MN)
Inventors: Donald T. Kaplan (Janesville, MN), Anthony W. Merchlewitz (Fairbault, MN), Louis G. Lieske (Belle Plaine, MN)
Primary Examiner: Brian N. Vinson
Law Firm: Peterson, Wicks, Nemer & Kamrath
Application Number: 7/654,918
Classifications
Current U.S. Class: D/8337