Unclogging device having safety cap

Details Unclogging device having safety cap Unclogging device having safety cap

2006-05-16

2006-05-16

Nicolas, Frederick C. (Department: 3754)

Dispensing

With lock or fastening seal

For a fluid pressure discharge assistant

C222S182000, C222S402130

Reexamination Certificate

active

07044337

ABSTRACT:
An unclogging device includes a support member securely mounted to the can and a cap rotatably mounted to the support member. The cap includes two flexible portions on the peripheral wall thereof and first and second protrusions extend from each of the flexible portions. The support member includes two first notches for engaging one of the first protrusions and two second notches which are deeper than the first notches so as to allow the first protrusions to be moved therein after the support member is rotated an angle relative to the cap. By the arrangement, the users have rotate the support member together with the can relative to the cap before the nozzle on the can is pushed by the cap to eject the pressurized air in the can from the nozzle to clean the clogged drains.

REFERENCES:
patent: 4204615 (1980-05-01), McCarthy
patent: 4353483 (1982-10-01), Pehr
patent: 4944429 (1990-07-01), Bishop et al.
patent: 6302302 (2001-10-01), Albisetti
patent: 6758373 (2004-07-01), Jackson et al.

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