Knot retainer for shoelaces
US4290172A · kind A · utility
15Cited by
14References
3Claims
0Family size
Inventor
Key dates
| Filing date | Feb 15, 1980 |
| Grant date | Sep 22, 1981 |
| Priority date | — |
| Expiry date | Feb 15, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/3916
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A disc-like body member is arranged to lie flat on the lacing area of a shoe and has a first aperture arranged to receive both the free ends of a shoelace upwardly therethrough. A pair of second apertures also extend through the body member and are arranged to receive the free ends of the shoelace downwardly therethrough after a knot has been tied on the upper surface of the body member. Another pair of apertures may be provided in the body member which are arranged to receive the free ends of the shoelaces upwardly therethrough after the shoelaces have been passed down through the second apertures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.