Automatically adjustable exercise equipment, and control system

Details Automatically adjustable exercise equipment, and control system Automatically adjustable exercise equipment, and control system

Filed on

1987-02-24

Date issued

1988-05-24

Examiner

Apley, Richard J.

Patent Class

Undertaking

Other Related Categories

272129, 272DIG4, A63B 2100

Type

Patent

Status

active

Patent number

047461136

Description

ABSTRACT:
A weight changing system includes a body carrying a plurality of pins which body is fixedly aligned with respect to the top of a weight stack so that the pins carried by the body are aligned with corresponding openings in the weights. The pins are selectively driven from a retracted position in which the pin is not inserted in its corresponding weight opening to an extended position in which the pin is inserted in the corresponding opening. Upon receipt of a signal representative of momentary muscular failure of the user, the pin controllers retract the pin supporting the stack of weights being lifted and insert a higher pin in the opening in its weight to automatically decrease the weight being lifted. Multiple momentary muscular failure points are achievable with this system.

REFERENCES:
patent: 3573865 (1971-04-01), Annas et al.
patent: 3869121 (1975-03-01), Flavell
patent: 4253662 (1981-03-01), Podolak
patent: 4546971 (1985-10-01), Raasoch
patent: 4556214 (1985-12-01), Petrofsky et al.
patent: 4605221 (1986-08-01), D'Agosta
patent: 4609189 (1986-09-01), Brasher
patent: 4610449 (1986-09-01), Diercks, Jr.
patent: 4650185 (1987-03-01), Cartwright
patent: 4657246 (1987-04-01), Salyer

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