Utility-power operated tamper-proof pressurized spray can

Details Utility-power operated tamper-proof pressurized spray can Utility-power operated tamper-proof pressurized spray can

1997-04-22

1998-12-22

Shaver, Kevin P.

Dispensing

With lock or fastening seal

For a fluid pressure discharge assistant

22215314, 222504, 251 89, 25112901, B65B 500

Patent

active

058509437

ABSTRACT:
A utility-power operated tamper-proof pressurized spray can (10) which can only be operated when connected to a utility a-c Power source. Thus, its use to spray graffiti is prevented or at least minimized. The spray can (10) is presented in two design configurations. In the first design, a solenoid/valve assembly is mounted on the top cover of a spray can and on the second design the solenoid/valve assembly is located on the can's lower cover. The first design utilizes a housing (12) that encloses the solenoid/valve assembly which consists of an upper fixed armature (20), a moving armature (36) and a lower fixed armature (58). Between the upper fixed armature (20) and the moving armature (36) is inserted a compliant leaf (48) that functions as a valve. Around the housing (12) is removably attached an electric coil (86) that when connected to a utility a-c power source produces a magnetic field that is applied to the solenoid/valve assembly. The magnetic field causes the moving armature (36) to be displaced which separates the complaint leaf (48) which then allows paint to flow upwards and be sprayed. The arrangement of the upper fixed armature (20) and the moving armature (36) precludes the use of a permanent magnet to cause the moving armature (36) to move downward into the paint spraying positions

REFERENCES:
patent: 5385271 (1995-01-01), Bierend et al.
patent: 5427277 (1995-06-01), Bierend et al.
patent: 5603433 (1997-02-01), Rene
patent: 5791520 (1998-08-01), Tichenor

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