Patent · US Active

Dumbbell

US7841972B1 · kind B1 · utility

16Cited by

28References

13Claims

0Family size

Assignee

Michael Lin · TW

Inventors

Hsuan-Fu Huang · Keelung, TW
Ming Nan Chen · Zhuolan Township, TW

Key dates

Filing date	Oct 7, 2009
Grant date	Nov 30, 2010
Priority date	—
Expiry date	Oct 7, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA63B2071/0063
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A dumbbell includes a handle, a weight unit and two caps for retaining the weight unit within the handle. The weight unit includes weights and springs alternately arranged within the handle. Each of the caps is located against a related one of the springs so that the weights do not hit the handle axially.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.