Tangle-resistant leash
US5740764A · kind A · utility
Inventor
Key dates
| Filing date | Jan 22, 1996 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Jan 22, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K27/004
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A leash including a shock-absorbent substantially elastic lead is disclosed wherein the lead is not shaped like a simple beam, i.e., the lead includes one or more macroscopic concavities along its length. As examples, the lead may be shaped like a C-beam, I-beam, T-beam, or X-beam. The perimeters of the concavities form stiffening ridges which prevent the sagging or drooping of the lead and possible entanglement with the animal's or user's legs. By forming such concavities, material can be removed from the lead without adversely affecting its stiffness. An extender lead for extending the length of preexisting leashes is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.