Radius curve template

Description

FIG. 1 is a top plan view of a radius curve template showing my new design.

FIG. 2 is a side elevational view thereof.

FIG. 3 is an end elevational view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is an enlarged section view taken on line 5--5 of FIG. 1.

FIG. 6 is a top plan view of a modified form of my new design.

FIG. 7 is a side elevational view thereof.

FIG. 8 is an end elevational view thereof.

FIG. 9 is a bottom plan view thereof.

FIG. 10 is an enlarged section view taken on line 10--10 of FIG. 6.

Referenced Cited
U.S. Patent Documents
D141882 July 1945 Matson
D166118 March 1952 O'Connor
D167043 June 1952 Kintz
365479 June 1887 Latimer
1604232 October 1926 Lipke
2014190 September 1935 Simon
2478071 August 1949 Agrillo
Other references
  • Art Brown & Bro., Inc. Catalog, July 1973, p. 144, Large Isomeric Elipses and Civil Engineers. Office Products Dealer, Feb. 1982, p. 132, Template and Lettering Guides. Alvin & Co., Inc. Catalog, p. 21, Arc Lettering Guide. Alvin & Co., Inc. Catalog, p. 35, bottom of page-Ellipse Template.
Patent History
Patent number: D281887
Type: Grant
Filed: May 13, 1983
Date of Patent: Dec 24, 1985
Inventor: Valdis Lapsins (Dayton, OH)
Primary Examiner: Bernard Ansher
Assistant Examiner: Theodore M. Shooman
Law Firm: Jacox & Meckstroth
Application Number: 6/494,538
Classifications