Measuring and testing – Muscular force
Patent
1988-01-21
1989-12-12
Ruehl, Charles A.
Measuring and testing
Muscular force
272129, A61B 522, A63B 2124
Patent
active
048859397
ABSTRACT:
A human performance dynamometer for testing eccentric contractions and also concentric contractions of the human muscles. The dynamometer provides for free-limb acceleration during concentric contractions, whereby the user can accelerate the input shaft of the dynamometer to the set speed without any resistance from the dynamometer. The dynamometer has two parallel shafts which are geared together and rotate in opposite directions to one another. The dynamometer has an input shaft for connection to limb engaging means. A motor is operatively connected to one of the parallel shafts through a speed reducer. Located on each shaft is an overrunning spray clutch, each of which may be disengaged from the system if eccentric contractions are desired for one or both directions of rotation of an input shaft. Each outer race of the respective overrunning clutch is connected to its respective parallel shaft. The inner race of each overrunning clutch is geared to the input shaft. A spring clutch on one of the parallel shafts is used to lock together the inner race and the outer race of one of the overrunning clutches, thereby allowing for eccentric contractions in both directions of the rotation of input shaft when the other overrunning clutch is disengaged. A motor controller is also provided for controlling the motor.
REFERENCES:
patent: 2616416 (1952-11-01), Gillmeier
patent: 2735422 (1956-02-01), Jones
patent: 2784591 (1957-03-01), Shoor
patent: 3134378 (1964-05-01), Harwood
patent: 3301553 (1967-01-01), Brakeman
patent: 3465592 (1969-09-01), Perrine
patent: 3580244 (1971-05-01), Graves
patent: 3713438 (1973-01-01), Knutsen
patent: 3744480 (1973-07-01), Gause et al.
patent: 3784194 (1974-01-01), Perrine
patent: 3822599 (1974-07-01), Brentham
patent: 3824993 (1974-07-01), Grant
patent: 3848467 (1974-11-01), Flavell
patent: 3869121 (1975-03-01), Flavell
patent: 3902480 (1975-09-01), Wilson
patent: 4235437 (1980-11-01), Ruis et al.
patent: 4276887 (1981-07-01), Hofstein
patent: 4326707 (1982-04-01), Strecker
patent: 4333340 (1982-06-01), Elmeskog
patent: 4337050 (1982-06-01), Engalitcheff, Jr.
patent: 4354676 (1982-10-01), Ariel
patent: 4402502 (1983-09-01), Peters
patent: 4479647 (1984-10-01), Smith
patent: 4492222 (1985-01-01), Hajianpour
patent: 4544154 (1985-10-01), Ariel
patent: 4549534 (1985-10-01), Zagorski et al.
patent: 4601468 (1986-07-01), Bond et al.
patent: 4628910 (1986-12-01), Krukowski
patent: 4691694 (1987-09-01), Boyd et al.
Lumex, Inc.
Ruehl Charles A.
LandOfFree
Dynamometer for testing eccentric contractions and concentric co does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dynamometer for testing eccentric contractions and concentric co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamometer for testing eccentric contractions and concentric co will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2114955