Collapsible dumbbells

Details Collapsible dumbbells Collapsible dumbbells

1985-07-03

1987-09-22

Apley, Richard J.

Undertaking

272117, A63B 1100

Patent

active

046950516

ABSTRACT:
An elongated bladder has a hollow handle portion with an internal passage communicating with enlarged hollow end portions at opposite ends of said handle, respectively. One of the enlarged end portions has an inlet-outlet opening normally closed by a cap which is removable for filling the bladder with liquid to form a dumbbell. After exercise, the bladder can be drained for compact shipment or storage.

REFERENCES:
patent: 259752 (1882-06-01), Fisher
patent: 812144 (1906-02-01), Mackenzie et al.
patent: 3231270 (1966-01-01), Winer
patent: 3334899 (1967-08-01), Bosko et al.
patent: 3482834 (1969-12-01), James, Jr.
patent: 3658326 (1972-04-01), Fawick
patent: 3781007 (1973-12-01), Baker et al.
patent: 4029312 (1977-06-01), Wright
patent: 4079932 (1978-03-01), Schuetz
patent: 4103887 (1978-08-01), Shoofler
patent: 4538806 (1985-09-01), Wilkerson

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