US3895928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air treatment device
Assignee: COMERCIAL SUPER - DIX SA
•
Filing: 1972-09-26
•
Granted: 1975-07-22
•
Expires: 1992-09-26
Abstract
Abstract A device for treatment of air in a room or other space in which the air is perfumed, or deodorized, or purified. A solid refractory material acts as a carrier for air-treatment material thereon which is gasified upon heating of the carrier material. The solid carrier material is held in a casing within which an electrically energized heating element heats the carrier material and the airtreatment material is liberated and passes through openings in the casing to effect the air treatment.
Inventors
- 👤 Gonzalo Moran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:49
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/02; A61L9/03
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
127 words
AN AIR TREATMENT DEVICE FOR PERFUMING, DEODORIZING AND PURIFYING AIR COMPRISING, A TUBULAR CASING, GRATE MEANS ON EACH END OF SAID CASING PROVIDING COMMUNICATION BETWEEN THE INTERIOR OF SAID CASING AND THE ATMOSPHERE, HOLDING MEANS AXIALLY SPACED FROM SAID GRATE MEANS AT EACH SAID ONE END OF SAID CASING, A CAKE OF SOLID CARRIER MATERIAL CARRYING THEREON A HEAT ACTIVATED GASIFIABLE, AIR-TREATMENT MATERIAL MOUNTED ON EACH SAID HOLDING MEANS ADJACENT ITS RESPECTIVE GRATE MEANS, AN ELECTRICALLY ACTIVATED HEATING MEANS IN SAID CASING BETWEEN SAID TWO CAKES OF CARRIER MATERIAL TO HEAT SAID CAKES OF CARRIER MATERIAL AND LIBERATE THE TREATMENT MATERIAL THEREIN WHICH PASSES THROUGH THE RESPECTIVE GRATE MEANS TO THE AREA ADJACENT THE CASING, AND MEANS FOR CONNECTING SAID HEATING MEANS TO AN ELECTRICAL POWER SOURCE.
Claim 2
Dependent Claim
127 words
AN AIR TREATMENT DEVICE FOR PERFUMING, DEODORIZING AND PURIFYING AIR COMPRISING, A TUBULAR CASING, GRATE MEANS ON EACH END OF SAID CASING PROVIDING COMMUNICATION BETWEEN THE INTERIOR OF SAID CASING AND THE ATMOSPHERE, HOLDING MEANS AXIALLY SPACED FROM SAID GRATE MEANS AT EACH SAID ONE END OF SAID CASING, A CAKE OF SOLID CARRIER MATERIAL CARRYING THEREON A HEAT ACTIVATED GASIFIABLE, AIR-TREATMENT MATERIAL MOUNTED ON EACH SAID HOLDING MEANS ADJACENT ITS RESPECTIVE GRATE MEANS, AN ELECTRICALLY ACTIVATED HEATING MEANS IN SAID CASING BETWEEN SAID TWO CAKES OF CARRIER MATERIAL TO HEAT SAID CAKES OF CARRIER MATERIAL AND LIBERATE THE TREATMENT MATERIAL THEREIN WHICH PASSES THROUGH THE RESPECTIVE GRATE MEANS TO THE AREA ADJACENT THE CASING, AND MEANS FOR CONNECTING SAID HEATING MEANS TO AN ELECTRICAL POWER SOURCE.
Claim 3
Dependent Claim
27 words
An air treatment device according to claim 1 in which each said holding means comprises a washer-like element mounted to said casing and having a central opening.
Claim 4
Dependent Claim
28 words
An air treatment device as in claim 1 wherein each said holding means includes at least one upstanding projection on which said cake of carrier material is mounted.
Claim 5
Dependent Claim
37 words
A device as in claim 1 further comprising a pilot lamp means for connecting said pilot lamp means to the source of electrical power, and an opening in said casing through which said lamp can be viewed.
Claim 6
Dependent Claim
26 words
A device as in claim 3 wherein each said holding means includes at least one upstanding projection on which said cake of carrier material is mounted.
References Cited (Backward Citations)
US2604572A
Cited
US2742342A
Cited
US3403252A
Cited
US3299620A
Cited
US3518046A
Cited
US3643040A
Cited
US3576593A
Cited
US3653844A
Cited
US3667134A
Cited
US3693323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |