Torch with a bellowed intermediate flexible tube member

Details Torch with a bellowed intermediate flexible tube member Torch with a bellowed intermediate flexible tube member

1997-03-25

1998-04-28

Quach, Y. My

Illumination

Self powered lamp

Lamp bulb or lamp support axis adjustable or angularly fixed...

362202, F21L 700

Patent

active

057436240

ABSTRACT:
A torch includes a head member with a bulb unit, a tail member with a cell unit, and a bellowed intermediate flexible tube member connected to the head and tail members. The tube member includes a tube body, two connectors respectively attached to two ends of the tube body and having internally threaded end sections which engages the end sections of the head and tail members, and front and rear conductive contact sets respectively provided in the connectors in such a manner that the front conductive set is in electrical contact with the bulb unit while the rear conductive set is in electrical contact with the cell unit. Each of the front and rear conductive sets includes an insulated tubular seat fixed within a corresponding one of the connectors and provided with a reduced-diameter outer end portion, and an annular conductive ring sleeved around the outer end portion and provided with an externally toothed portion for engaging an inner surface of the corresponding connector so as to prevent disengagement therefrom. The tail member includes a cell-holding conductive barrel tube for accommodation of the cell unit therein, and a conductive cap which is detachably attached to the conductive barrel tube and which biases the cell unit to contact the contact element while the conductive barrel tube contacts the ring.

REFERENCES:
patent: 3103723 (1963-09-01), Becker
patent: 4733337 (1988-03-01), Bieberstain
patent: 5570949 (1996-11-01), Chiang
patent: 5571278 (1996-11-01), Chiang

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