Lap blank for use in optical lens making

Description

FIG. 1 is a perspective view of a lap blank for use in optical lens making showing our new design;

FIG. 2 is a top plan view;

FIG. 3 is a right side elevational view, the left side being a mirror image thereof;

FIG. 4 is a front elevational view; the rear being a mirror image thereof;

FIG. 5 is a bottom plan view;

FIG. 6 is a perspective view of a second embodiment of the lap blank shown in FIG. 1;

FIG. 7 is a top plan view;

FIG. 8 is a right side elevational view;

FIG. 9 is a front elevational view;

FIG. 10 is a left side elevational view;

FIG. 11 is a rear elevational view;

FIG. 12 is a bottom plan view;

FIG. 13 is a perspective view of a third embodiment of the lap blank shown in FIG. 1;

FIG. 14 is a top plan view;

FIG. 15 is a right side elevational view;

FIG. 16 is a front elevational view, the rear being a mirror image thereof;

FIG. 17 is a left side elevational view, and

FIG. 18 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D84552 June 1931 Siegel
D156439 December 1949 Lebensfeld
D279801 July 23, 1985 Brockenshire
D300489 April 4, 1989 Antonellis
371457 October 1887 Hersh
2699633 January 1955 Lapenas et al.
2715509 August 1955 Paige
3618271 November 1971 Martiros
3906834 September 1975 Gladwin
4239567 December 16, 1980 Wininas
4739546 April 26, 1988 Tachibana et al.
Patent History
Patent number: D320213
Type: Grant
Filed: Oct 21, 1988
Date of Patent: Sep 24, 1991
Assignee: Gerber Optical, Inc. (South Windsor, CT)
Inventors: David J. Logan (Glastonbury, CT), Jeffrey Murray (Ellington, CT)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Jeffrey Asch
Law Firm: McCormick, Paulding & Huber
Application Number: 7/260,895
Classifications
Current U.S. Class: Element Or Attachment (D15/126); D/6449; D/6495; Tool Or Work Holder (D15/140)