Undertaking
Patent
1984-01-17
1986-12-30
Hafer, Robert A.
Undertaking
272DIG5, 73379, A63B 500, A61B 522
Patent
active
046323830
ABSTRACT:
A case of approximate sphere is formed by assembling a pair of hemispherical shell pieces with elastic materials. A rack, capable of shifting in the axial direction in connection with shift of the shell pieces, is supported within the case. A pinion designed to rotate in engagement with the rack is provided within the case. A grip indicator dial designed to rotate in connection with the pinion is provided within the case. This grip indicator dial is provided with a scale observable from outside the case. Within the case is provided a target-grip setting dial capable of being operated from outside the case. The target-grip setting dial is provided with a scale indicating the target-grip.
REFERENCES:
patent: 415949 (1889-11-01), Soeding
patent: 468154 (1892-02-01), McClure
patent: 710705 (1902-10-01), Mills
patent: 1487631 (1924-03-01), Wanger
patent: 3511097 (1967-09-01), Corwin
patent: 3647209 (1972-03-01), LaLanne
patent: 3735101 (1973-05-01), Stewart
patent: 4099713 (1978-07-01), Spector
D'Arrigo Kathleen
Hafer Robert A.
Kabushiki Kaisha Tsuzuki Seisakujo
LandOfFree
Training tool for promoting grip does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Training tool for promoting grip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Training tool for promoting grip will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1543114