Actuator for an aerosol can device

An actuator comprising an actuator piece comprising:

• an actuator dome, said actuator dome defining an actuator aperture therethrough;
• an inner sidewall having an inner sidewall first end and an inner sidewall second end opposite said inner sidewall first end, said inner sidewall being coupled to said actuator dome and said inner sidewall circumscribing said actuator aperture;
• and
• an outer sidewall having an outer sidewall first end and an outer sidewall second end opposite said outer sidewall first end, said outer sidewall being coupled to said actuator dome, and said outer sidewall circumscribing said actuator aperture.

An actuator comprising:

• an actuator piece comprising:
• an actuator dome, said actuator dome defining an actuator aperture therethrough;
• an inner sidewall having an inner sidewall first end and an inner sidewall second end opposite said inner sidewall first end, said inner sidewall being coupled to said actuator dome and said inner sidewall circumscribing said actuator aperture;
• and
• a coupling piece slidably coupled to said actuator piece, said coupling piece comprising:
• a coupling piece sidewall;
• a coupling piece annular portion coupled to said coupling piece sidewall at the outside peripheral edge of said coupling piece annular portion;
• and
• a coupling piece dome coupled to said coupling piece annular portion at the inside peripheral edge of said coupling piece annular portion.

A method of cleaning a drain comprising:

• providing an actuator comprising:
• an actuator piece comprising:
• an actuator dome, said actuator dome defining an actuator aperture therethrough;
• a sidewall having a sidewall first end and a sidewall second end opposite said sidewall first end, said sidewall circumscribing said actuator aperture;
• and
• a coupling piece coupled to and slidably engaging said actuator piece, said coupling piece comprising:
• a coupling piece sidewall;
• a coupling piece annular portion coupled to said coupling piece sidewall at the outside peripheral edge of said coupling piece annular portion;
• and
• a coupling piece dome coupled to said coupling piece annular portion at the inside peripheral edge of said coupling piece annular portion;
• coupling an aerosol can to said coupling piece, said aerosol can containing a pressurized gas;
• placing said sidewall second end in abutting contact with a drain flange of said drain;
• applying a biasing force in a direction substantially along the length of said sidewall toward said drain flange thereby establishing a substantially gas tight seal between said sidewall second end and said drain flange;
• releasing said pressurized gas contained in said aerosol can through said actuator aperture to impinge on a blockage in said drain.