Bleed for a vacuum cleaner
AssigneeShop Vac Corporation
InventorRobert C. Berfield
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner attachment for use in a suction line comprises a bleed section having an aperture extending into an interior portion of the attachment and a collar disposed in the bleed section. The collar is positionable in only a finite number of stable orientations wherein the collar covers the aperture in a first orientation and exposes the aperture in a second orientation.
Claims12
A vacuum cleaner attachment for use in a suction line, comprising:
- a bleed section having a first aperture and a second aperture wherein the first aperture and the second aperture extend into an interior portion of the attachment;
- and
- a collar disposed in the bleed section and positionable in only a finite number of stable orientations wherein the collar covers the first aperture in a first orientation, exposes the first aperture in a second orientation, and exposes the second aperture in a third orientation.
A vacuum cleaner attachment having a longitudinal central axis and adapted for use in a suction line, comprising:
- a bleed section having an outer surface of non-circular cross section including a plurality of sides each separated from adjacent sides by corner portions and wherein an aperture is disposed in one side and extending into an interior portion of the attachment;
- and
- a resilient collar disposed in the bleed section having an inner surface closely conforming to the outer surface of the bleed section, wherein the collar is deformable to permit rotation thereof about the longitudinal central axis of the attachment between a first orientation exposing the aperture and a second orientation covering the aperture.
A vacuum cleaner attachment having a longitudinal central axis and adapted for use in a suction line, comprising:
- a bleed section including a base wall which is symmetric in cross section about the longitudinal central axis and comprising first through fourth sides separated from one another by first through fourth corner portions, wherein the bleed section further includes first and second axially spaced side walls disposed on first and second ends of the base wall;
- an aperture disposed on one of the first through fourth sides and extending into an interior portion of the attachment;
- and
- a C-shaped collar disposed about and embracing the base wall between the axially spaced side walls and having three legs each of which substantially conforms to each of the first through fourth sides wherein the collar is rotatable to first through fourth stable orientations and wherein the collar exposes the aperture in the first stable orientation and covers the aperture in the second through fourth stable orientations.
Dependencies are inferred from the claim text.