Lock nut for bicycle or the like

- Maeda Industries, Ltd.
Description

FIG. 1 is a front elevational view of a lock nut for bicycles or the like showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view taken from the right of FIG. 1;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a side elevational view taken from the left of FIG. 1;

FIG. 7 is a sectional view taken in the direction of the arrows on line 7--7 of FIG. 4; and

The oblique line shading represents a reflective surface which is in contrast with the remaining portions of the lock nut which are opaque.

Referenced Cited
U.S. Patent Documents
D43713 March 1913 Campbell
D198713 July 1964 Curtiss
D243063 January 18, 1977 Mooney
D261174 October 6, 1981 Berliner
D262940 February 9, 1982 Spinner
Foreign Patent Documents
80291 February 1963 FRX
Other references
  • Fischer Nut Selector Chart; p. 8; narrow hex nut (bottom row, second from right).
Patent History
Patent number: D273561
Type: Grant
Filed: Oct 21, 1981
Date of Patent: Apr 24, 1984
Assignee: Maeda Industries, Ltd. (Osaka)
Inventors: Nobuo Ozaki (Osaka), Yoshimasa Kaneko (Osaka)
Primary Examiner: B. J. Bullock
Law Firm: Birch, Stewart, Kolasch & Birch
Application Number: 6/313,500
Classifications
Current U.S. Class: D/8397