Anti-friction nut
US5191805A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1992 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Jan 10, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/198
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A light-weight miniature, high-speed, light-load anti-friction nut assemblage adapted to receive a screw. The assemblage has a nut body with an axial bore through which the screw can pass, and a second bore extending transversely of its axis and intersecting the axial bore. There is a roller pin disposed in the second bore, having a nose adapted for engagement with side walls of the screw thread. The roller pin is carried on a first miniature anti-friction bearing having inner and outer races, with adhesive being applied between the inner race and the roller pin, and between the outer race and the walls of the second bore. A second miniature anti-friction bearing is carried in a recess in the axial bore of the nut body, this second bearing centralizing the nut body on the screw for relative turning with respect thereto. Reduced component count and significant manufacturing economies are realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.