Extension arm for an automobile jack
US5237890A · kind A · utility
10Cited by
14References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1992 |
| Grant date | Aug 24, 1993 |
| Priority date | — |
| Expiry date | Mar 4, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/604
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A lifting jack for automobiles has an extension arm with a particular fastener which may be used to connect longitudinally elongated tubular sections. A series of interlocking sections are provided which need not be identical (e.g. in particular having different ends). The sections are linked in a positive lock (snap fit) by a fastener having one or more resilient legs biasing a lug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.