Door closer

- Ryobi Limited
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top plan view of the door closer;

FIG. 2 is the right side view thereof;

FIG. 3 is the front end view thereof;

FIG. 4 is the bottom view thereof;

FIG. 5 is the left side view thereof;

FIG. 6 is the rear view thereof;

FIG. 7 is a perspective view featuring the right side view thereof;

FIG. 8 is a perspective view featuring the left side view thereof.

Referenced Cited
U.S. Patent Documents
D261099 October 6, 1981 Russell
2131564 September 1958 Lasier
2220967 November 1940 Lasier
2920338 January 1960 Falk
2960718 November 1960 Lasier
3259936 July 1966 Sheridan
4086681 May 2, 1978 Nakanishi
Foreign Patent Documents
2245748 April 1974 DEX
Other references
  • "Dialmatic Door Closer", Catalog No. 80; Dexter Lock Co., Grand Rapids, Mich.; Brochure (4 pp.).
Patent History
Patent number: D271845
Type: Grant
Filed: Apr 24, 1981
Date of Patent: Dec 20, 1983
Assignee: Ryobi Limited (Hiroshima)
Inventors: Yoshihiko Matsuo (Yokohama), Takeshi Shohoji (Funabashi)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Horace B. Fay, Jr.
Law Firm: Birch, Stewart, Kolasch & Birch
Application Number: 6/257,201
Classifications
Current U.S. Class: D/8330
International Classification: D0807;