Roller skate with integral ratchet means
US4553767A · kind A · utility
25Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1984 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Feb 9, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2141
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A roller skate includes a selectively engagable ratcheting plate that can be positioned for engaging a plurality of teeth formed integrally in one or more wheels of the skate. The plate rides on a cam that is slidably positioned for selective racheting or freewheeling operation. In the ratcheting mode the skate is prevented from rolling backwards thereby making it easier for a beginning skater to use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.