Portable electric torch with rotary cylinder

Details Portable electric torch with rotary cylinder Portable electric torch with rotary cylinder

1997-10-27

2000-04-18

O'Shea, Sandra

Illumination

Self powered lamp

Cylindrical flashlight casing

362202, 362188, 362157, F21L 700

Patent

active

060506997

ABSTRACT:
A torch light having a case containing batteries and an assembly formed by a bulb and connecting circuit arranged on a cylinder mounted with limited rotation in a circular housing of the case between a first rest position allowing access to the first compartment for fitting or removal of the batteries and a second work position commanding lighting of the torch. The cylinder has a ramp cooperating with the batteries when switching from the first rest position to the second work position takes place to allow the first contact and the second contact to come into engagement with the respective terminals of opposite polarities of said batteries. A pushbutton operating the switch is able to be in an inactive position corresponding to the closed state of the switch when the second contact is bearing against one of the terminals, and an active position urging the switch to the open state following separation of the terminal with the second contact.

REFERENCES:
patent: 3743915 (1973-07-01), Struck
patent: 3835272 (1974-09-01), Wisenbaker
patent: 4531178 (1985-07-01), Uke
patent: 4577263 (1986-03-01), Maglica
patent: 4709309 (1987-11-01), Yamaki

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