Positionable and expandable tube system
US5921204A · kind A · utility
10Cited by
10References
21Claims
0Family size
Inventor
Key dates
| Filing date | Mar 25, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Mar 25, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K15/025
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A positionable and expandable tube system composed of snappingly engageable tube segments for the construction of hamster, gerbil, or like pet tubes. Each tube segment consists of an upper and a lower truncated sphere connected at an annular intersection. The preferred embodiment incorporates an arcuate notch which accommodates the annular intersection in the lower truncated sphere to allow a greater maximum bend angle compared to a tube segment where an arcuate notch is not incorporated. The tube segments, when snappingly engaged, create frictionally positionable ball and socket joints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.