Filter system
First Claim
1. In a vacuum cleaner or air cleaner comprising a reduced velocity chamber with a high velocity air inlet, an electric motor, a rotary means driven by said motor for creating a vacuum in said chamber, an outlet for exhausting air from said chamber, said air flows in a selected path from said air inlet, through said chamber and out said air exhaust outlet, the improvement comprising a generally conically shaped filter positioned between said air inlet and said motor, said filter including gas removal means for removing gasses in said air and particle removal means for removing at least 99% of particles at least two microns in size in said air, said filter including first and second filter sections and attacher to connect together said first filter section and said second filter section, said first filter section including gas absorption means, said second filter section including means for removing at least 99% of said particles greater than 2 microns in said air.
6 Assignments
0 Petitions
Accused Products
Abstract
A vacuum cleaner having a reduced velocity chamber with a high velocity air inlet, an electric motor, a rotary mechanism driven by the motor for creating a vacuum in the chamber, an outlet for exhausting air from the chamber, which air flows in a selected path from the air inlet, through the chamber and out the air exhaust outlet and a disposable porous sheet filter layer in the chamber for removing large solid particles from the air. The vacuum cleaner also has an improved filter, wherein the improved filter includes a layer of material to remove very fine air particles and a layer of material to remove odors from the air.
61 Citations
29 Claims
- 1. In a vacuum cleaner or air cleaner comprising a reduced velocity chamber with a high velocity air inlet, an electric motor, a rotary means driven by said motor for creating a vacuum in said chamber, an outlet for exhausting air from said chamber, said air flows in a selected path from said air inlet, through said chamber and out said air exhaust outlet, the improvement comprising a generally conically shaped filter positioned between said air inlet and said motor, said filter including gas removal means for removing gasses in said air and particle removal means for removing at least 99% of particles at least two microns in size in said air, said filter including first and second filter sections and attacher to connect together said first filter section and said second filter section, said first filter section including gas absorption means, said second filter section including means for removing at least 99% of said particles greater than 2 microns in said air.
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15. A method of cleaning air by use of a canister vacuum cleaner including the steps of:
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(a) drawing air through a high velocity air inlet into a low velocity chamber; (b) centrifuging the air in the low velocity chamber to remove solid particles; (c) passing said air through a first filter to remove large particles; (d) passing said filtered air through a particle and gas removing filter to remove gasses and small particles, said particle and gas removing filter including a gas removal section, a particle removal section and an attacher to connect together said gas removal section and said particle removal section, said gas removal section having a gas absorption means, said particle removal section removing at least 99% of said particles greater than 2 microns in said air; and (e) forcing said cleaned air past a motor and out an air outlet. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification