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US3854903A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrostatic air cleaner

Assignee: Chemtool Inc
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Filing: 1973-03-06
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Granted: 1974-12-17
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Expires: 1993-03-06
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Abstract

Abstract An electronic air cleaning assembly is provided wherein the collector plates are of identical configuration for both the high voltage and grounded plates. The collector plates are provided with a plurality of clearance holes of a generally circular shape and a plurality of spacing holes of a generally rectangular shape. The plates are spaced and supported by tube members having a diameter approximately equal to the width of the rectangular holes. Each tube is provided with a series of spaced slots extending partly therethrough and of a width for engaging one side wall of a rectangular hole in alternate plates thereby spacing and holding the plates in fixed relationship to one another. A doubled corona charging wire arrangement is also provided wherein a continuous length of wire is used in forming the ionizing section of the electrostatic air cleaner but each cooperative pair of wires is tensioned by an individual tensioning spring.

Inventors

  • 👤 M Tomaides

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 16:19
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/38

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 111 words
An ionizer assembly for an electrostatic air cleaning apparatus comprising first and second spaced ionization wire support members, said support members having a forward and a rear edge respectively with respect to airflow therebetween, a plurality of ionization wires extending between said first and second support members at the forward and at the rear edges thereof to define a plurality of couples of ionizer wires, said couples being generally aligned in the direction of airflow, grounded ionizer tubes forming an array of tubes upstream of and generally parallel to the upstream ionizer wires and a second array of grounded ionizer tubes downstream of and generally parallel to the downstream ionizer wires.
Claim 2
Dependent Claim 111 words
An ionizer assembly for an electrostatic air cleaning apparatus comprising first and second spaced ionization wire support members, said support members having a forward and a rear edge respectively with respect to airflow therebetween, a plurality of ionization wires extending between said first and second support members at the forward and at the rear edges thereof to define a plurality of couples of ionizer wires, said couples being generally aligned in the direction of airflow, grounded ionizer tubes forming an array of tubes upstream of and generally parallel to the upstream ionizer wires and a second array of grounded ionizer tubes downstream of and generally parallel to the downstream ionizer wires.
Claim 3
Dependent Claim 19 words
An assembly in accordance with claim 1 wherein said ionizer wires are formed of a single length of wire.
Claim 4
Dependent Claim 39 words
An assembly in accordance with claim 1 wherein each of said couples is formed of a length of wire fixedly joined to the underside of one of said support members and extends around and over the second support member.
Claim 5
Dependent Claim 26 words
An assembly in accordance with claim 3 wherein each of said couples is joined to a spring tensioning means to maintain said wires in predetermined tension.
Claim 6
Dependent Claim 198 words
An ionizer assembly for an electrostatic air cleaning assembly comprising first and second parallel spaced channel shaped members defining therebetween an ionization region transverse to airflow therethrough, the first of said channel members defining a plurality of spaced openings in the outer surface thereof and extending along the length thereof, the Second of said channel members having a plurality of spaced wire mounting means along the length thereof corresponding in position to said openings, ionization wire joined at each of said wire mounting means and extending around the outermost edges of each of said channel and across said openings thereby defining a plurality of spaced ionizer wire couples, spring and hook means interior of said first channel members in engagement with the wire passing over each of said openings and drawing a portion of said wire through said opening to produce a predetermined tension on each of said wires in a couple, grounded ionizer tubes forming an array of tubes upstream and generally parallel to the upstream ionizer wires and a second array of grounded ionizer tubes downstream of and generally parallel to the downstream ionizer wires, said tubes being positioned along planes intermediate adjacent ionizer wire couples.
Claim 7
Dependent Claim 198 words
An ionizer assembly for an electrostatic air cleaning assembly comprising first and second parallel spaced channel shaped members defining therebetween an ionization region transverse to airflow therethrough, the first of said channel members defining a plurality of spaced openings in the outer surface thereof and extending along the length thereof, the Second of said channel members having a plurality of spaced wire mounting means along the length thereof corresponding in position to said openings, ionization wire joined at each of said wire mounting means and extending around the outermost edges of each of said channel and across said openings thereby defining a plurality of spaced ionizer wire couples, spring and hook means interior of said first channel members in engagement with the wire passing over each of said openings and drawing a portion of said wire through said opening to produce a predetermined tension on each of said wires in a couple, grounded ionizer tubes forming an array of tubes upstream and generally parallel to the upstream ionizer wires and a second array of grounded ionizer tubes downstream of and generally parallel to the downstream ionizer wires, said tubes being positioned along planes intermediate adjacent ionizer wire couples.
Claim 8
Dependent Claim 148 words
An ionizer assembly for an electrostatic air cleaning apparatus comprising first and second spaced ionization wire support members, said support members having a forward and a rear edge respectively with respect to airflow therebetween, a plurality of ionization wires formed from a single length of wire extending between said first and second support members at the forward and at the rear edges thereof to define a plurality of couples of ionizer wires, said couples being generally aligned in the direction of airflow, spring means connected to said support member and to one point on each of said plurality of couples of ionizer wires to maintain the wires of said couple in tension, grounded ionizer tubes forming an array of tubes upstream of and generally parallel to the upstream ionizer wires and a second array of grounded ionizer tubes downstream of and generally parallel to the downstream ionizer wires.
Claim 9
Dependent Claim 148 words
An ionizer assembly for an electrostatic air cleaning apparatus comprising first and second spaced ionization wire support members, said support members having a forward and a rear edge respectively with respect to airflow therebetween, a plurality of ionization wires formed from a single length of wire extending between said first and second support members at the forward and at the rear edges thereof to define a plurality of couples of ionizer wires, said couples being generally aligned in the direction of airflow, spring means connected to said support member and to one point on each of said plurality of couples of ionizer wires to maintain the wires of said couple in tension, grounded ionizer tubes forming an array of tubes upstream of and generally parallel to the upstream ionizer wires and a second array of grounded ionizer tubes downstream of and generally parallel to the downstream ionizer wires.
Claim 10
Dependent Claim 24 words
An assembly in accordance with claim 6 wherein one point on each of said couples is fixedly joined to one of said support members.
Claim 11
Dependent Claim 46 words
An assembly in accordance with claim 7 wherein said spring means comprises integral spring and hook members with the hook passing through a hole in one of said ionization wire support members to engage said wire to individually tension each of said couples of ionizer wires.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-12-16 1978-06-17 1978-12-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-12-16 1982-06-17 1982-12-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-12-16 1986-06-17 1986-12-17 $7700.00 Window Closed / Lapsed

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