Disposable HEPA filtration device
AssigneeGPAC, Inc.
InventorEugene E. Newman
Life of this patent
Estimating the term…
Abstract
A disposable canister containing a HEPA filtration mechanism is used in conjunction with a removably mounted vacuum motor assembly. The vacuum motor assembly draws particulate-laden air, including harmful airborne contaminants, into an inlet opening of the canister by a disposable vacuum hose. The inlet opening is made of a magnetically attracting material. The particulate-laden air is then filtered through the HEPA filtration mechanism prior to exiting from the canister as non-contaminated air. Upon termination of the vacuum force on the inlet, a hinged magnetic flap seals the inlet to the canister. The immediate and complete sealing of the inlet by the magnetically biased flap assures against escape of harmful contaminants from the canister.
Claims35
A disposable filtration device for use in conjunction with a vacuum motor mechanism comprising:
- a canister having a sealed bottom and an open top,
- an inlet opening to the canister which includes a magnetically attracting flat inner surface adjacent the opening,
- a support plate spanning the open top of the canister, the support plate having an outlet for the canister,
- a HEPA filtration means located within the canister for filtering air entering the inlet opening prior to the air passing to the outlet, and
- magnetic sealing means for covering and sealing the inlet opening whenever suction from said vacuum motor mechanism is removed.
A disposable filtration device according to claim, 2, wherein the magnetic sealing means includes a magnet sheet secured to a flexible strip, the strip having one end secured to the canister for movement of the strip away from and toward the inlet opening.
A disposable filtration device for collecting harmful contaminants and retaining the contaminants inside the device during disposal of the device, the disposable filtration device comprising:
- a canister made of metal and having a sealed bottom and an open top,
- an inlet formed in a sidewall of the canister,
- a support plate sealing the open top of the canister, the support plate having an outlet for the canister,
- a HEPA filtration means secured to the support plate so that all air entering the inlet only passes to the outlet after passing through the HEPA filtration mechanism, and
- magnetic sealing means contacting the canister and covering the inlet to completely seal the inlet, except when a force moves the magnetic sealing means away from the inlet.
A disposable filtration device for collecting lead contaminated particulate and retaining the lead contaminated particulate inside the device during collection of the lead contaminated particulate and disposal of the device, the disposable filtration device comprising:
- a canister having a sealed bottom and an open top,
- an inlet formed in a sidewall of the canister,
- a support plate means sealing the open top of the canister, the support plate having an outlet for the canister,
- a HEPA filtration means secured to the support plate so that all air entering the inlet only passes to the outlet after passing through the HEPA filtration mechanism, and
- sealing means contacting the canister and covering the inlet to seal the inlet under magnetic force except when sufficient force moves the sealing means away from the inlet.
A vacuum device for collecting hazardous particulate capable of generating substantial airborne contaminants upon being disturbed, which comprises:
- a disposable canister having an inlet opening and a top with an outlet opening,
- a HEPA filtration means positioned in advance of the outlet opening so that all air entering the inlet opening must pass through the HEPA filter means before exiting the outlet opening,
- a suction hose associated with said inlet opening,
- a vacuum motor means secured to the canister to create suction in the canister and the suction hose to vacuum contaminated air and hazardous particulate into the canister through the inlet and decontaminated air out of the canister after passing through the HEPA filter means, and
- sealing means for completely and automatically sealing the inlet opening under magnetic force whenever the vacuum motor means was off.
Dependencies are inferred from the claim text.