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

Barbell system

Patent 4822034 Issued on April 18, 1989. Estimated Expiration Date: Icon_subject June 17, 2008. 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

Re31113

1779594

3257111

3346256

3612523

3746338

3771785

Pulling apparatus with built-in weight magazine
Patent #: 4361323
Issued on: 11/30/1982
Inventor: Segersten

Weight lifting apparatus
Patent #: 4529198
Issued on: 07/16/1985
Inventor: Hettick, Jr.

Exercise apparatus Patent #: 4564194
Issued on: 01/14/1986
Inventor: Dawson

Inventor

Application

No. 07/208173 filed on 06/17/1988

US Classes:

482/106, Handheld bar with weight at each end (e.g., barbell, dumbbell, etc.) or component thereof482/98Having guide around or through weight

Examiners

Primary: Apley, Richard J.
Assistant: Bahr, Richard W.

International Classes

A63B 21/078 (20060101)
A63B 21/06 (20060101)
A63B 21/072 (20060101)

Abstract

A barbell weight lifting apparatus comprising a plurality of spaced weights stored on spaced apart support trays and arranged in two horizontal rows on a frame, the weights each having an identically positioned horizontal slot therein and a vertically disposed pin mounted in therein for securing the weights to a lifting bar. The lifting bar has a rotatable collar on each end with spaced circumferential grooves cut therein in positions to be in line with the pins in the weights when the lifting bar is positioned in the slots. The lifting bar has round wheels attached to the ends thereof which rest in a guide channel on each end of the frame and cooperate with a pair of spaced alignment bar mounted on the frame for control of the motion of the lifting bar to maintain the lifting bar in proper alignment with the frame and the weights during weight loading and unloading procedures. Weights not selected for attachment to the lifting bar are prevented from movement off the frame by a horizontal safety bar. Two alternate embodiments of the weights used and the associated securing mechanism are provided. One weight utilizes a side-mounted pivotal lever for securing the weight to the bar. The rearward end of the lever is formed as a latch to engage the weight frame. The second alternate weight employs a side-mounted vertically slidable plate for a locking mechanism to attach the weight to the bar.

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