Specialized crutch tips
US4098283A · kind A · utility
39Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1977 |
| Grant date | Jul 4, 1978 |
| Priority date | — |
| Expiry date | Feb 16, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H3/0288
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disk having a convex lower surface bounded by a peripheral ridge may be attached to the bottom of a crutch tip to engage sand, a plurality of apertures around the disk permits the disk to engage snow, and a plurality of thumb tacks embedded in the disk and extending downward from the disk to form a plurality of pointed projections will help the disk engage ice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.