U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Adjustable dumbbell

Patent 5637064 Issued on June 10, 1997. Estimated Expiration Date: Icon_subject October 13, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

D244628

D307168

D315003

D321230

D359778

1422888

1672944

1917566

3758109

Exercising device
Patent #: 4029312
Issued on: 06/14/1977
Inventor: Wright

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Inventors

Assignee

Application

No. 542659 filed on 10/13/1995

US Classes:

482/108, Bar held by single hand of user (e.g., dumbbell, etc.)482/107Having securing member (e.g., locking collar, etc.) for retaining weight on bar

Examiners

Primary: Apley, Richard J.
Assistant: Mulcahy, John

Attorney, Agent or Firm

Foreign Patent References

  • 637365 FR. 04/13/2012
  • 2452296 FR. 10/13/1980
  • 384485 CH. 11/13/1964
  • 1367987 SU 01/13/1988
  • 1659073 SU 06/13/1991
  • 1687271 SU 10/13/1991

International Class

A63B 021/075

Abstract

An adjustable dumbbell (10) includes a central handle (22) which can be selectively connected to one or more outer weights (24) by means of a selector pin (26). The outer weights (24) are arranged in a nested symmetrical stack which provides for a compact construction and storage of the unused weights at the same time. The adjustable dumbbell (10) is also incrementally adjustable, and may be used either in conjunction with or as a substitute for a conventional weight stack in an exercise machine.

Other References

  • "Physical Conditioning Equipment 86/87 Catalog", Universal Gym Equipment, Inc., pp. 46 and 47, copyright 198
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