Retractable leash assembly
US10412934B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2016 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jun 2, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K27/004
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for automatically retracting a leash comprises a spool rotatably mounted in a housing. The spool includes a hub and gear teeth disposed about an outer surface of the hub. A gear train is operatively engaged with the gear teeth on the hub of the spool. A carrier linkage houses a portion of the gear train for rotation of the carrier linkage upon rotation of the gears in the gear train. A lockout pawl in the housing is movable between a first position that enables the spool to freely rotate and a second locked position to lock the spool against rotation. A cam surface on the rotating carrier linkage is configured to engage the pawl for moving the pawl to the second position. A control knob enables the gear train to be selectively positioned with the respect to the pawl to selectively predetermine the maximum length of the leash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.