Baths – closets – sinks – and spittoons – Obstruction remover – Force cup
Reexamination Certificate
2006-10-17
2006-10-17
Huynh, Khoa D. (Department: 3751)
Baths, closets, sinks, and spittoons
Obstruction remover
Force cup
C004S255010, C004S255040, C004S255050
Reexamination Certificate
active
07120943
ABSTRACT:
An affordable plumbing device that uses a compressed gas and a burst disk having a relatively even surface of substantially uniform thickness to produce a sudden discharge of energy to forcibly act against any obstruction that may interfere with the proper function of a drain. The plumbing device has a cylindrical chamber for receiving the compressed gas and may generally take the shape of a plunger, which is flexible to use and is easy to store. A portion of the chamber forms a receiving chamber with the burst disk for harnessing and directing the energy of the compressed gas to clear the drain.
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Adelmeyer Gerard G.
Allenbaugh Howard M.
Turchik David M.
Huynh Khoa D.
Knobbe Martens Olson & Bear LLP
M.A.G. Engineering & Mfg. Co.
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