U.S. patents available from 1976 to present.
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Patent No. 5970981

Mouthguard made at least partially from an edible candy

A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.

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Class 4/426 - With check valve


Subclass of Class 4 - Baths, closets, sinks, and spittoons
Definition: Subject matter including a check valve in the siphon passage
No. of patents: 6
Last issue date: 06/11/2002


NumberTitleIssue Date
6401266Waste outlet device
A waste outlet device adapted for use with a urinal and comprising one-way valve means (12)....
06/11/2002
4190910Plumbing apparatus including means for producing a water-plug effect in sanitation appliances
A sanitation appliance such as a water-closet or the like equipped with a generally vertically extending outlet pipe is provided with a resilient diaphragm mounted within said pipe and extending thereacross to stem the flow of flushing water passing throu...
03/04/1980
4180875Urine disposal bypass unit
A urine disposal bypass unit includes a bowl for receiving urine having a bottom outlet for disposing of the urine, a one-way valve disposed in the outlet to permit flow from the bowl downward through the outlet and to prevent flow of gases upward into th...
01/01/1980
4178644Water saving device for toilet
The quantity of fluid utilized in flushing a conventional closet-type toilet bowl is reduced by a water saving device. The water saving device is adapted to be positioned within the trap of the toilet, and includes a supporting frame with a movable gate o...
12/18/1979
4115883Diaphragm activated toilet
A toilet for conserving water, the toilet having a water storage chamber which includes an expandable diaphragm wall that on filling under household water supply pressure conforms to a wall of a complimentary air chamber separated from the storage compart...
09/26/1978
4107798Self-contained toilet
A self-contained toilet comprising a collecting tank, means for rinsing the interior of the collecting tank including a rinsing manifold, a rinsing conduit, and a check valve operatively connecting the rinsing manifold and rinsing conduit, and means for p...
08/22/1978
 
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