Locking mechanism for vaporizer electrode housing utilizing elec

Details Locking mechanism for vaporizer electrode housing utilizing elec Locking mechanism for vaporizer electrode housing utilizing elec

1995-01-13

1998-05-05

Jeffery, John A.

Electric resistance heating devices

Heating devices

Fluid-in-circuit type heater

392313, 20210, F22B 130, H05B 360

Patent

active

057488363

ABSTRACT:
A heating unit assembly for vaporizers having a cover member, a heating unit housing, a heating unit holder and a locking mechanism which prevents the removal of both the cover member and the heating element while the vaporizer is operational. Preferably, the locking mechanism is the combination of at least one flexible locking finger and a post member and is provided with a key member. The key member is the prong of an electrical power cord plug which is inserted into the cover. The heating unit assembly also provides a connecting member which locks the cover member to the heating unit housing.

REFERENCES:
patent: 3538306 (1970-11-01), Brunell
patent: 3579262 (1971-05-01), Peeps
patent: 3579263 (1971-05-01), Corbett et al.
patent: 3705415 (1972-12-01), Katzman et al.
patent: 3973687 (1976-08-01), Glick
patent: 4243870 (1981-01-01), Grime et al.
patent: 4288684 (1981-09-01), Katou et al.
patent: 4338510 (1982-07-01), Chihara et al.
patent: 5291579 (1994-03-01), Marino

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