Portable toilet

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4764994
SERIAL NO

06777650

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A portable toilet of the type having a waste holding tank which is separable from a bowl unit of the toilet. The tank includes a vent for permitting entry of air to the holding tank during emptying thereof. This avoids surging of the contents of the tank during emptying, assuring a smooth flow of the liquid and minimizing splashing. In a preferred embodiment, the vent takes the form of a sleeve projecting upwardly from the holding tank and defining a vent passageway, and a cap on the sleeve which can be manually raised to open the vent passageway but which is automatically depressed to close the vent when the bowl unit is secured to the holding tank.

First Claim

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Patent Owner(s)

Patent OwnerAddress
SANITATION EQUIPMENT LIMITEDCONCORD ONTARIO L4K 2S7

International Classification(s)

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  • 1985 Application Filing Year
  • E03D Class
  • 46 Applications Filed
  • 0 Patents Issued To-Date
  • 0 % Issued To-Date

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Stewart, John M Ontario, CA 61 647

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  • 2 Citation Count
  • E03D Class
  • 0 % this patent is cited more than
  • 37 Age
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