Tool handle/extension coupler
US5112156A · kind A · utility
19Cited by
6References
3Claims
0Family size
Inventor
Key dates
| Filing date | May 2, 1991 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | May 2, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/51
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Couplers for hand tools and extension handles are made up of two one piece fittings. Each fitting has an attachment element for connection to one of the tool and extension handle and a connecting element for joining the two fittings. Normally, one of the attachment elements will be a threaded male element and the other a threaded female element. The connector elements also are composed of a male and female element. The male connector element is a tube or rod with a dually tapered flange. The flange fits into a channel (depression) in the female connector element. The connecting elements are complementary in shape and size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.