Coupling eye for a window operator

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Description

FIG. 1 is a perspective view of a coupling eye for a window operator showing our new design;

FIG. 2 is a front elevational view thereof, the side opposite being identical except for the appearance of the circular aperture;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a cross sectional view taken along line 4--4 of FIG. 3.

Referenced Cited
U.S. Patent Documents
D33373 October 1900 Bidle
D268323 March 22, 1983 Schaumloffel
1282028 October 1918 Bellows
1946050 February 1934 Werner
2143985 January 1939 Kellems
2669894 February 1954 Kassel
4262951 April 21, 1981 Hoyer
4281943 August 4, 1981 Viennot
5248176 September 28, 1993 Fredriksson
Foreign Patent Documents
101652 February 1984 EPX
246338 November 1987 EPX
375493 June 1990 EPX
2153676 May 1973 DEX
1959 1898 GBX
Other references
  • Campbell Chain: Marine Products; Dec. 1980, p. 11; hitch pin on lower left. Campbell Chain: Cat. No. BTB-2741 (1981); p. 51, Fitting "T". Campbell Chain: Cat. No. F-3170 .COPYRGT. 1982; 1) p. 20: eye on lower right 2) p. 27: 766-G Eye Nut.
Patent History
Patent number: D374394
Type: Grant
Filed: Dec 19, 1994
Date of Patent: Oct 8, 1996
Assignee: Interlock Industries Limited (Wellington)
Inventors: Michael J. Lynch (Wellington), Rana J. Waitai (Auckland)
Primary Examiner: Prabhakar G. Deshmukh
Assistant Examiner: C. Tuttle
Law Firm: Blakely, Sokoloff, Taylor & Zafman
Application Number: 0/32,437
Classifications
Current U.S. Class: D/8400