Portable waste transfer tank
AssigneeThetford Corporation
InventorsKenneth Hall, Sheryar Durrani
Life of this patent
Estimating the term…
Abstract
A includes a main body portion defining a waste holding chamber, a vent path extending from the waste holding chamber to atmosphere, and a float member. The float member is coupled to the tank for movement between a first position and a second position. The float member is movable from the first position to the second position in response to an increase in fluid level within the storage chamber. The vent passage remains open for venting the storage chamber when the float member is in the first position and is blocks the vent passage in the second position.
Claims20
A vent assembly for a portable waste transfer tank, the vent assembly comprising:
- a base portion defining a vent passage for venting a storage chamber of the portable waste transfer tank;
- and
- a float member coupled to the base portion for movement between a first position and a second position, the float member movable from the first position to the second position in response to an increase in fluid level within the storage chamber;
- wherein the vent passage remains open for venting the storage chamber when the float member is in the first position and is blocks the vent passage in the second position.
A vent and level indicator assembly for a portable waste transfer tank, the vent and level indicator assembly comprising:
- a base portion defining a vent passage for venting a storage chamber of the portable waste transfer tank;
- a level indicator coupled to the base portion for movement between a first position and a second position, the level indicator operative to provide a visual indicator that a storage chamber of the portable waste transfer tank is substantially full when in the second position;
- and
- a float member carried by the level indicator for movement with the level indicator such that an increased fluid level in the storage chamber moves the level indicator from the first position to the second position.
A portable waste transfer tank, the portable waste transfer tank comprising:
- a main body portion defining a waste holding chamber;
- a vent path extending from the waste holding chamber to atmosphere;
- and
- a float member coupled to the tank for movement between a first position and a second position, the float member movable from the first position to the second position in response to an increase in fluid level within the storage chamber;
- wherein the vent passage remains open for venting the storage chamber when the float member is in the first position and is blocks the vent passage in the second position.
Dependencies are inferred from the claim text.