US4333750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtration module with included illumination
Assignee: COMP-AIRE SYSTEMS Inc 4185 44TH ST KENTWOOD 49508
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Filing: 1981-02-20
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Granted: 1982-06-08
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Expires: 2001-02-20
Abstract
Abstract A filtration module having a receptacle for a filter element accessible through the outlet opening of the module has light means disposed outwardly from the receptacle with respect to the direction of air flow. The module is also preferably provided with sprinkler means including a spray head disposed outwardly from the module outlet opening.
Inventors
- 👤 Martin C. Helmus
- 👤 Wallace L. Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:09
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D50/00; B01D50/60
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
143 words
A filtration unit including a housing provided with an intake opening adapted for connection to a duct system, said housing also having a receptacle portion adapted to receive a filter element, a filter element removeably received in said receptacle portion said housing having an outlet opening on the opposite side of said receptacle portion from said intake opening, said unit also having disengageable means attached to said housing and adapted to releaseably secure a filter element in said receptacle portion, said means being accessible through said outlet opening, wherein the improvement comprises: light means disposed within said outlet opening, said light means including socket means and at least one replaceable bulb normally received in said socket means and further including electrical components mounted on said housing and accessible through said outlet opening in the absence of a filter element from said receptacle portion.
Claim 2
Dependent Claim
143 words
A filtration unit including a housing provided with an intake opening adapted for connection to a duct system, said housing also having a receptacle portion adapted to receive a filter element, a filter element removeably received in said receptacle portion said housing having an outlet opening on the opposite side of said receptacle portion from said intake opening, said unit also having disengageable means attached to said housing and adapted to releaseably secure a filter element in said receptacle portion, said means being accessible through said outlet opening, wherein the improvement comprises: light means disposed within said outlet opening, said light means including socket means and at least one replaceable bulb normally received in said socket means and further including electrical components mounted on said housing and accessible through said outlet opening in the absence of a filter element from said receptacle portion.
Claim 3
Dependent Claim
40 words
A unit as defined in claim 1, additionally including displaceable grille means disposed across the outer extremity of said outlet opening, and sprinkler means traversing said housing, and including at least one spray head disposed outwardly from said grille means.
Claim 4
Dependent Claim
111 words
A filtration unit including a housing provided with an intake opening adapted for connection to a duct system, said housing also having a receptacle portion adapted to receive a filter element, a filter element removeably received in said receptacle portion, said housing having an outlet opening on the opposite side of said receptacle portion from said intake opening, said unit also having disengageable means attached to said housing and adapted to releaseably secure a filter element in said receptacle portion, said means being accessible through said outlet opening, wherein the improvement comprises: sprinkler means vertically traversing said housing, and including at least one spray head disposed outwardly from said outlet opening.
Claim 5
Dependent Claim
111 words
A filtration unit including a housing provided with an intake opening adapted for connection to a duct system, said housing also having a receptacle portion adapted to receive a filter element, a filter element removeably received in said receptacle portion, said housing having an outlet opening on the opposite side of said receptacle portion from said intake opening, said unit also having disengageable means attached to said housing and adapted to releaseably secure a filter element in said receptacle portion, said means being accessible through said outlet opening, wherein the improvement comprises: sprinkler means vertically traversing said housing, and including at least one spray head disposed outwardly from said outlet opening.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-07 | 1985-12-07 | 1986-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-07 | 1989-12-07 | 1990-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-07 | 1993-12-07 | 1994-06-08 | $7700.00 | Window Closed / Lapsed |