Exercise devices – Hand – wrist – or finger – Grip
Patent
1998-02-14
1999-04-06
Crow, Stephen R.
Exercise devices
Hand, wrist, or finger
Grip
273584, A63B 2316
Patent
active
058910000
ABSTRACT:
A process for manufacturing filled resilient double bladder articles wherein a thinner walled resilient outer bladder and thicker walled resilient inner bladder are formed and a lubricating powder layer is deposited on the exterior surface of the inner bladder. The outer bladder is superposed over the inner bladder to form two plies of resilient material separated by the thin layer of lubricating powder which prevents the superposed surfaces from sticking together and allows relative sliding movement therebetween. The superposed bladders are pressed to remove any trapped air between the bladders and are then inflated to radially stretch them as a unit sufficient to cause permanent deformation thereof and thereafter allowed to deflate so that after deflation the deformed superposed bladders are of a size sufficient to contain a predetermined volume of filler material. The double bladder article is filled with a mass of tiny glass spheres having the consistency and appearance of fine powder. The filled article is then heated to radially shrink the superposed bladders tightly around the mass of filler material. The double bladder article is sealed by crimping a wire element around the superposed neck portions of the bladders to form an air tight seal. The sealed article is then cleaned and dried to remove any of the powder-like filler material from its exterior surfaces.
REFERENCES:
patent: 3347545 (1967-10-01), Nichols
patent: 3601923 (1971-08-01), Rosenberg
patent: 3748779 (1973-07-01), Cherk et al.
patent: 3977121 (1976-08-01), Goldfarb et al.
patent: 4952190 (1990-08-01), Tarnoff et al.
patent: 5556358 (1996-09-01), Scatterday
patent: 5716303 (1998-02-01), Scatterday
patent: 5718655 (1998-02-01), Phillips
Crow Stephen R.
Gayla Industries, Inc.
Roddy Kenneth A.
LandOfFree
Process for manufacturing filled double bladder resilient articl does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for manufacturing filled double bladder resilient articl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for manufacturing filled double bladder resilient articl will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1365915