Golf caddie wheel hub
US6139115A · kind A · utility
Inventor
Key dates
| Filing date | Jan 6, 1999 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Jan 6, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B27/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A wheel hub to be used in a golf motor caddie, has an axle; an outer tube, having a first end with a small opening, a second end with a large opening and three sections containing a first, a second and a third chambers, with an inner circular groove cut into the outer tube close to the second end; an inner tube, surrounding the axle; a first, plastics bearing, inserted in the first chamber; a second bearing, inserted in the second chamber; a third, oil-lubricated bearing, inserted in the third chamber; and a C-shaped washer, laid into the groove, for securing the third bearing. The outer tube is a common outer layer for all bearings. The first and second bearings enclose the inner tube, while the third, oil-lubricated bearing directly encloses the axle, such that no uneven distribution of forces and no eccentric rotation occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.