Concrete reinforcing rod spacer

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Description

FIG. 1 is a top plan view of a concrete reinforcing rod spacer showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is an elevational view of one side thereof, the view from the opposite side being the same; and

FIG. 4 is an elevational view from an adjacent side, the view from the opposite side being the same.

Referenced Cited
U.S. Patent Documents
D222031 September 1971 Buhram
D246826 January 3, 1978 Slukowicz
D253090 October 9, 1979 Sharley
D264682 June 1, 1982 VanDoren
3255565 June 1966 Menzel
3387423 June 1968 Andersen
3471987 October 1969 Yelsma
3693310 September 1972 Middleton
3745737 July 1973 Keller et al.
3757482 September 1973 Haaussler
3788025 January 1974 Holmes
4085559 April 25, 1978 Slukowicz
Foreign Patent Documents
407773 August 1968 AUX
858212 December 1970 CAX
1913104 October 1969 DEX
1659233 January 1971 DEX
2024883 August 1971 DEX
2052100 April 1972 DEX
2081758 December 1971 FRX
367966 April 1963 CHX
431000 August 1967 CHX
1276874 June 1972 GBX
Other references
  • Baton and Stahlbetoabau, vol. 64, No. 9, Sep. 1969, p. 186, Verley Wilhelm Ernest & Sohn, Berlin-"Hoe-Abstandholten-Noe-Rubin".
Patent History
Patent number: D279352
Type: Grant
Filed: Jun 19, 1984
Date of Patent: Jun 25, 1985
Inventors: Diana L. Mitchell (Vancouver, B.C. V6B 2Y1), Howard Hewitt (Vancouver, B.C. V6B 2Y1)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Horace B. Fay
Law Firm: Burns, Doane, Swecker & Mathis
Application Number: 6/622,166
Classifications
Current U.S. Class: D/8354; D/8380