Adjustable compass with ruler and protractor

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Description

FIG. 1 is a top view of the adjustable compass with ruler and protractor according to the present invention;

FIG. 2 is a bottom view of the adjustable compass with ruler and protractor of FIG. 1;

FIG. 3 is a side elevation view of the adjustable compass with ruler and protractor of FIG. 1, both sides being identical;

FIG. 4 is an elevation view from the protractor end of the adjustable compass with ruler and protractor of FIG. 1; and,

FIG. 5 is an elevation view from the ruler end of the adjustable compass with ruler and protractor of FIG. 1.

Referenced Cited
U.S. Patent Documents
D252615 August 14, 1979 Lopez
4267638 May 19, 1981 Heinz
Foreign Patent Documents
1494748 GBX
1495139 GBX
1495140 GBX
Other references
  • One prior art compass which is currently on the market and made in England by Nes Arnold, Ltd., Ludlow Hill Road, West Bridgford, Nottingham NG2 6HD England. Safe-T Products, Inc., brochure.
Patent History
Patent number: D411959
Type: Grant
Filed: Oct 22, 1998
Date of Patent: Jul 13, 1999
Assignee: Precision Moulded Polymers, Limited (Causeway Bay)
Inventor: Ho Chan (North Point)
Primary Examiner: Antoine Duval Davis
Attorney: Edward W. MacDonald, Illig, Jones and Britton LLP Goebel, Jr.
Application Number: 0/95,406
Classifications
Current U.S. Class: Angle Or Direction (7) (D10/65)
International Classification: 1004;