Door closer

- Ryobi Ltd.
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Description

FIG. 1 is a top, front and right side perspective view of a door closer showing my new design;

FIG. 2 is a front, bottom and left side perspective view thereof; and

FIG. 3 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D94773 March 1935 Parsons
D167177 July 1952 Schlage
D241512 September 1976 Hiraishi
2820241 January 1958 Schlage
3252178 May 1966 Check et al.
3426382 February 1969 Lazier et al.
3902220 September 1975 Little
4086681 May 2, 1978 Nakanishi
4115897 September 26, 1978 Zunkel
Other references
  • Architectoril Record, Apr. 1951, p. 223; Russwin "400" Door Closer made by American Hardware Corp. 1978 Sweet's Catalog file, vol. 7, section 8:30 Closers; Norton Series 1600, 8000, 8:30/Ean; of Yab/Eat, pp. 18-20, LCN, 8:30/Lc; Parker 8:30/PA.
Patent History
Patent number: D274212
Type: Grant
Filed: Sep 30, 1982
Date of Patent: Jun 12, 1984
Assignee: Ryobi Ltd. (Fuchu)
Inventor: Takeshi Shohoji (Chiba)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Horace B. Fay
Law Firm: Sughrue, Mion, Zinn, Macpeak and Seas
Application Number: 6/430,302
Classifications
Current U.S. Class: D/8330