Caster with a fouling-resistant bearing cup feature
US5390393A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1993 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Jan 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A caster includes a U-shaped caster horn having a top web portion and two contiguous downwardly-extending leg portions to define a unitary, U-shaped member providing a wheel accommodating space. A wheel is rotatably supported in the space such that the caster horn partially covers the wheel, The caster horn features a fouling-resistant bearing cup integrally formed thereon for receiving and retaining a bearing assembly, which secures one end of an structure-supporting stem. A swivel cap with a hole formed in the center thereof is placed over the cup while allowing an opposite end of the stem to protrude therethrough. A brake mechanism supported by the caster horn may be operated to inhibit or prevent rotation of the wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.