Sensing system for pet controllable access
US7209043B2 · kind B2 · utility
2Cited by
2References
2Claims
0Family size
Inventor
Key dates
| Filing date | Nov 9, 2004 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Apr 10, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K29/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Pet sensing is accomplished by detecting pulsed infrared light reflected from a pet worn collar or harness devised of highly reflective material. To avoid false triggering, a dual set of infrared light emitting and detecting sensor units works in conjunction with logic circuitry for reliable activation of an electrically actuated access device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.