Vacuum cleaner with noise reduction recesses

摘要

A new vacuum cleaner that is adapted for use in a vehicle has a user-removable debris collection tank that has spaced recesses on the bottom that inhibit both fore-and-back movement of debris within the collection tank and side-to-side movement of debris within the collection tank. The recesses are located in opposed outer corners of the tank, and have lower surfaces that support the tank in a standing position. Raised sections divide each of the recesses into two corner recess sections and an offset recess section, and inhibit both fore-and-aft movement of debris within the recesses and side-to-side movement of debris within the recess sections. The offset recess section has tracks that curve in different directions from an intermediate position adjacent or near a side of the tank. The bottom of the tank is generally curved downwardly towards the sides of the tank.

主权项

1. A vacuum cleaner that has:
a removable debris collection tank; two or more recesses that are on a bottom of the collection tank; wall segments on the recesses that inhibit both fore-and-back movement of debris within the collection tank and side-to-side movement of debris within the collection tank; one or more raised sections that extend through the recesses, divide one of the recesses into two corner recess sections and an offset recess section, and inhibit both fore-and-aft movement of debris within the divided recess and side-to-side movement of debris within the divided recess; and two tracks in the divided recess that extend in different directions, one lateral side of the tracks being formed by wall segments on the divided recess and the other lateral side of the tracks being formed by other wall segments on the raised section in the divided recess.