Baths – closets – sinks – and spittoons – Strainer – stopper – plug or closure – Combined strainer – plug – or valve
Patent
1986-06-18
1988-05-17
Artis, Henry K.
Baths, closets, sinks, and spittoons
Strainer, stopper, plug or closure
Combined strainer, plug, or valve
4288, 4293, 137192, 137433, A47K 114
Patent
active
047441097
ABSTRACT:
A gas-sealing insert for floor drains. The insert comprises a cover for sealing a floor drain opening except for a hole passing through the cover, and tubing suspended below the cover for receiving water passing through the hole. The tubing, at one end, sealingly encircles the opening, and has an outlet at its other end. A water trap, e.g. a U-bend, is provided in the tubing between its two ends and a gas-sealing valve is located at the outlet. The valve can be opened by the presence of water passing through the tubing but closes automatically, preferably under the effect of gravity. The insert can be used to replace a conventional drain cover and seals the drain against seepage of noxious gases, such as radon, from the drain system even if the water in the U-bend evaporates when the drain is not used for prolonged periods.
REFERENCES:
patent: 178137 (1876-05-01), Garland
patent: 592690 (1897-10-01), Bragger
patent: 2199673 (1940-05-01), Ronning
patent: 2972412 (1961-02-01), Lundeen
patent: 3590850 (1971-07-01), Grise
patent: 3838706 (1974-10-01), Klenk et al.
patent: 3962731 (1976-06-01), Cheiten
patent: 4535800 (1985-08-01), Leech
patent: 4606365 (1986-08-01), Siposs
patent: 4627460 (1986-12-01), Eising
LandOfFree
Gas-sealing insert for floor drains does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas-sealing insert for floor drains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas-sealing insert for floor drains will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1873799