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

Weight training machine

Patent 4974837 Issued on December 4, 1990. Estimated Expiration Date: Icon_subject June 5, 2009. 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

3635472

3708166

3815903

3840227

3912261

3912263

Exercising device for assisting a person to perform pullups
Patent #: 4111414
Issued on: 09/05/1978
Inventor: Roberts

Multiple use weight lifting exercising device
Patent #: 4188029
Issued on: 02/12/1980
Inventor: Brower ,   et al.

Weight lifting device
Patent #: 4509745
Issued on: 04/09/1985
Inventor: Angsten

Exercise device
Patent #: 4546971
Issued on: 10/15/1985
Inventor: Raasoch

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Inventors

Assignee

Application

No. 361293 filed on 06/05/1989

US Classes:

482/98, Having guide around or through weight482/112Confined hydraulic or pneumatic chamber

Examiners

Primary: Bahr, Robert

Attorney, Agent or Firm

Foreign Patent References

  • 0177643 EP 04/13/1986
  • 1389789 SU 04/13/1988

International Class

A63B 021/062

Foreign Application Priority Data

1988-07-15 JP

Abstract

A noiseless weight training machine is provided. The machine comprises a base frame mounted on a floor, a rectangular weight frame installed on the base frame, a pair of parallel guiding rods extending vertically from the base frame, a plurality of weight blocks for traveling up and down along the guide rods, a weight block connecting unit for connecting weight blocks of a number of interest to a user, a cable for suspending the weight block connecting unit through a sheave supported by the ceiling of the weight frame, and a shock damper placed beneath the weight blocks. The shock damper damps shock and vibrations generated by the impact of lifted weight blocks returning against the remainder thereof to reduce impact noise while exercising. The machine further includes elastic members disposed on stoppers mounted beneath the lowermost of the weight blocks so as to support them. The elastic members absorb minor shock occurring when the lifted weight blocks fall on the remainder thereof or when all of the weight blocks are lifted and fall on the stoppers.

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