Pet toy
US5809938A · kind A · utility
39Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Mar 17, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K15/025
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A large hollow ball is centrally and symmetrically mounted around an axle having ends which extend beyond the outer wall of the ball equally on diametrically opposed sides. The two axle ends are secured within retainers provided on a ring which orbits the center ball. The ring has a center track on which is contained a plurality of balls. In operation, as a cat propels the center ball, the ring is free to pivot about the axis and as the ring pivots, the balls contained in the track roll back and forth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.