Positionable and expandable tube system

Details Positionable and expandable tube system Positionable and expandable tube system

1997-03-25

1999-07-13

Swiatek, Robert P.

Animal husbandry

Confining or housing

Animal display or open work enclosure

119416, 119702, 285261, A01K 100

Patent

active

059212047

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.

REFERENCES:
patent: 100726 (1870-03-01), Coar
patent: 536419 (1895-03-01), Cochrane
patent: 1528967 (1925-03-01), Berstad
patent: 3104897 (1963-09-01), Berger
patent: 3515414 (1970-06-01), Kowalewski
patent: 3695646 (1972-10-01), Mommsen
patent: 4081189 (1978-03-01), Dumas
patent: 4117535 (1978-09-01), Holt
patent: 5391014 (1995-02-01), Chen
patent: 5449206 (1995-09-01), Lockwood

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