Mathematical balance

- Invicta Plastics Limited
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Description

FIG. 1 is a perspective view of the mathematical balance with two weights;

FIG. 2 is a perspective view of part of the mathematical balance;

FIG. 3 is an exploded perspective view of an arm of the mathematical balance; and,

FIG. 4 is an exploded perspective view of the base and central support of the mathematical balance.

Referenced Cited
U.S. Patent Documents
3486244 December 1969 Hoon
4731022 March 15, 1988 Garland
Patent History
Patent number: D392200
Type: Grant
Filed: Mar 5, 1996
Date of Patent: Mar 17, 1998
Assignee: Invicta Plastics Limited (Leicester)
Inventors: James Dorian Gibson (Leicester), Stephen Reginald Thompson (Leicester)
Primary Examiner: Antoine Duval Davis
Law Firm: Loeb & Loeb LLP
Application Number: 0/51,203
Classifications
Current U.S. Class: Beam Or Balance Type (D10/90)
International Classification: 1004;