Stand-off device
US4760495A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1987 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Apr 16, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/75
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved stand-off device is disclosed which is used to control the spacing between adjacent planar elements in electronic instrumentation. The stand-off device includes a resilient, hollow shell member and a rigid, cylindrical inner element. The shell member has at least one slot extending from one end, and has a top interior cylindrical surface, a bottom interior cylindrical surface, and a threaded intermediate interior surface. The inner element has a conical expander portion and a drive portion with a threaded exterior surface which is complementary to the threaded interior intermediate surface of the shell member. The slotted end of the shell member is adapted for insertion into an aperture in a planar member from one side of that member. The inner element is adapted for insertion into the shell member from the same side of that member, whereupon the conical portion forces the slotted end of the shell member to expand and engage the perimeter of the aperture in the planar member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.