Animal pens
US4513691A · kind A · utility
Inventor
Key dates
| Filing date | Nov 25, 1983 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Nov 25, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K1/0613
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An animal pen comprises a plurality of frame members interconnected to provide an animal receiving structure having a front end and a rear end, a door adjacent the rear end for entry of the animal head first into the pen, an advancing means mounted on the main frame for movement forwardly of the frame to engage the rear of the animal to urge the animal forwardly in the structure, a first hydraulic ram to actuate the advancing means mounted between the advancing means and the main frame, and a yoke comprising a pair of closure members mounted in the frame for movement forwardly and inwardly of the frame to close around a front of the animal, and a linkage between the closure members, a second hydraulic ram between the linkage and the main frame to actuate the closure members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.