Adjustable dumbbell system

Details Adjustable dumbbell system Adjustable dumbbell system

2008-08-12

2009-10-20

Thanh, LoAn H. (Department: 3764)

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing weight resistance

C482S106000

Reexamination Certificate

active

07604578

ABSTRACT:
A handle has opposed ends and a central extent. A grip rotationally receives the central extent of the handle. An adjustment wheel is secured to each end of the handle. A side cover is fixedly secured to each end of the grip. A dowel disk is on the handle adjacent to one side cover with fingers and spaces. A plurality of cam bits are supported on the handle. A safety lock is within the side cover adjacent to the dowel disk. The safety lock has a first end extent and a second end extent with a radial recess and a central extent with an axial projection. A coil spring within the radial recess urges the safety lock radially outwardly.

REFERENCES:
patent: 6500101 (2002-12-01), Chen
patent: 6540650 (2003-04-01), Krull
patent: 6776741 (2004-08-01), Burwell
patent: 7137932 (2006-11-01), Doudiet
patent: 7261678 (2007-08-01), Crawford et al.
patent: 7285078 (2007-10-01), Liu
patent: 7413533 (2008-08-01), Lin
patent: 7452312 (2008-11-01), Liu
patent: 2003/0199368 (2003-10-01), Krull
patent: 2004/0005968 (2004-01-01), Crawford et al.

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