Dumbbell assembly

Details Dumbbell assembly Dumbbell assembly

2009-04-29

2010-10-26

Thanh, Loan (Department: 3764)

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing weight resistance

C482S107000, C482S108000

Reexamination Certificate

active

07819786

ABSTRACT:
Normal dumbbell assembly tends to have loose of wobbly weight-heads, after repeated use, producing inherent risk of danger for users. Present invention described and claimed a dumbbell assembly that has a structure not likely to have loose or wobbly weight-heads, and thus reducing and avoiding potential harms and dangers to users, due to the tight and secure attachment of weight-heads to the dumbbell handle.

REFERENCES:
patent: 7131938 (2006-11-01), Cao
patent: 7491156 (2009-02-01), GaoYong
patent: 7591772 (2009-09-01), Shillington
patent: 2004/0162196 (2004-08-01), deGroot
patent: 2007/0249475 (2007-10-01), Cao
patent: 2009/0023563 (2009-01-01), Liang
patent: 2009/0270233 (2009-10-01), Cao

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