Modified trampoline holder structure

Details Modified trampoline holder structure Modified trampoline holder structure

2007-05-22

2007-05-22

Donnelly, Jerome (Department: 3764)

Exercise devices

Gymnastic

Projector

C482S028000, C403S170000, C403S217000, C403S326000

Reexamination Certificate

active

11303960

ABSTRACT:
A modified trampoline holder structure comprises a plurality of transverse tubes, six connection sleeves, and three supporting tubes. The transverse tubes are connected together into a ring shape. Each connection sleeve firmly clamps the joint of two adjacent transverse tubes. Each connection sleeve is inserted into an end opening of one supporting tube. Locking bumps are formed at two sides of the inner edge of each tube clamping portion. Corresponding locking grooves are formed at two sides of the joint of two adjacent transverse tubes. When the tube clamping portion firmly clamps the joint of two adjacent transverse tubes, the locking bump and the locking groove will be locked together. Each insertion tube portion is composed of at least two arc-shaped sheets. Detents that can be locked together are formed on the two arc-shaped sheets.

REFERENCES:
patent: 2991841 (1961-07-01), Sampson et al.
patent: 3767192 (1973-10-01), Eriksson
patent: 4139192 (1979-02-01), McNeil
patent: 4339123 (1982-07-01), Rich
patent: 4381861 (1983-05-01), Howell et al.
patent: 6413004 (2002-07-01), Lin
patent: 6559221 (2003-05-01), Sandor et al.
patent: 2005/0143225 (2005-06-01), Adams

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