US3860404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter apparatus with movement means
Assignee: Individual
•
Filing: 1973-02-21
•
Granted: 1975-01-14
•
Expires: 1993-02-21
Abstract
Abstract A manually portable air-filtering apparatus having a housing with a perforate entry area at one end and a perforate outlet area at an opposite end, said housing having an interior electric suction fan and a removable filter-material container towards discharge through the outlet entry area.
Inventors
- 👤 Stefan Jochimski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:40
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; F; F24; F24F; F24F1/00; F24F1/0007; F24F1/0071; F24F8/00; F24F8/10; F24F8/15; F24F8/158; F24F8/80; F24F2221/00; F24F2221/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
174 words
A small, lightweight apparatus for moving air to be filtered therethrough, including a housing, a perforate entry area at one of the housing ends, an electric suction fan means positioned within the housing, an electrical male connection plug on one end of the housing, to engage a female electrical socket, a removable filter-material container positioned to one side of said electric suction fan to intercept the air moved by said electric suction fan, a perforate outlet area on said housing on the other side of said electric suction fan means, said filter container held easily in a user''s hand and such filter container positioned within the cap and being removable with said cap, said filter material being activated charcoal, and a cap releasably mounted on the end of the housing opposite to the end with the male connection plug, in such a manner so as to be openable and closeable by a user''s hand to disengage and engage the end of the housing to quickly remove and replace said filter-material with a user''s hand.
Claim 2
Dependent Claim
174 words
A small, lightweight apparatus for moving air to be filtered therethrough, including a housing, a perforate entry area at one of the housing ends, an electric suction fan means positioned within the housing, an electrical male connection plug on one end of the housing, to engage a female electrical socket, a removable filter-material container positioned to one side of said electric suction fan to intercept the air moved by said electric suction fan, a perforate outlet area on said housing on the other side of said electric suction fan means, said filter container held easily in a user''s hand and such filter container positioned within the cap and being removable with said cap, said filter material being activated charcoal, and a cap releasably mounted on the end of the housing opposite to the end with the male connection plug, in such a manner so as to be openable and closeable by a user''s hand to disengage and engage the end of the housing to quickly remove and replace said filter-material with a user''s hand.
Claim 3
Dependent Claim
22 words
An apparatus which includes the features of claim 1 above, wherein said male plug is adapted to fit a household AC socket.
Claim 4
Dependent Claim
34 words
An apparatus which includes the features of claim 2 above, wherein an electric lightbulb assembly is electrically joined to said fan so that the bulb assembly may be lighted as the fan is operating.
Claim 5
Dependent Claim
24 words
An apparatus which includes the features of claim 1 above, wherein said plug is a DC male plug adapted to fit a DC socket.
Claim 6
Dependent Claim
23 words
An apparatus which includes the features of claim 4 wherein said DC male plug is dimensioned to fit an automobile dashboard DC socket.
References Cited (Backward Citations)
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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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |