Patent US4569687A successfully refreshed from Google Patents.
US4569687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inertial air cleaner
Assignee: Individual
•
Filing: 1984-11-30
•
Granted: 1986-02-11
•
Expires: 2004-11-30
Abstract
Abstract An inertial air cleaner characterized by comprising an intake pipe, a first air chamber, a second air chamber, a third air chamber, a first funnel-shaped air disturber, a second funnel-shaped air disturber, a first dust chamber, a second dust chamber and an exhaust pipe, and being capable of making the intake smoke or air with carbon rotate therein, and effectively removing the carbon particles by centrifugal force without need of any filtering materials.
Inventors
- 👤 You-Ching Feng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:16
CPC Classifications
B; B04; B04C; B04C3/00; B04C3/04; B01; B01D; B01D45/00; B01D45/12; B04C3/06; B04C5/00; B04C2003/006; Y; Y10; Y10S; Y10S55/00; Y10S55/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
111 words
An inertial air cleaner comprising an intake pipe, a cylinder, a plurality of curved dust chambers attached to the cylinder by means of fasteners and sealed with packings, and an exhaust pipe; the said cylinder consisting of at least one first air chamber opened to the first dust chamber, one second air chamber separated from the first air chamber by a first partition, one first funnel-shaped air disturber, one third air chamber situated between the second air chamber and the first air disturber and opened to the second dust chamber separated from the third air chamber by the second partition, and one second funnel-shaped air disturber connected to the exhaust pipe.
Claim 2
Dependent Claim
111 words
An inertial air cleaner comprising an intake pipe, a cylinder, a plurality of curved dust chambers attached to the cylinder by means of fasteners and sealed with packings, and an exhaust pipe; the said cylinder consisting of at least one first air chamber opened to the first dust chamber, one second air chamber separated from the first air chamber by a first partition, one first funnel-shaped air disturber, one third air chamber situated between the second air chamber and the first air disturber and opened to the second dust chamber separated from the third air chamber by the second partition, and one second funnel-shaped air disturber connected to the exhaust pipe.
Claim 3
Dependent Claim
50 words
An inertial air cleaner according to claim 1 wherein the intake pipe extends through the first air chamber into the second air chamber and has four clockwise spiral blades in it and a plurality of vents opened clockwise and respectively to the first air chamber and the second air chamber.
Claim 4
Dependent Claim
38 words
An inertial air cleaner according to claim 1 wherein the first partition covering the whole cross section of the cylinder has a plurality of air vents opened clockwise to the first air chamber and arranged in indented rows.
Claim 5
Dependent Claim
51 words
An inertial air cleaner according to claim 1 wherein the first dust chamber under the first air chamber has two curved plates mounted respectively on the internal wall at one side and with proper space and having air vents opened to the bottom in different directions and arranged in indented rows.
Claim 6
Dependent Claim
57 words
An inertial air cleaner according to claim 1 wherein the first funnel-shaped air disturber has a plurality of S disturbing blades of which the front part curves clockwise from the axis of the cylinder to the internal wall and joins there, and the rear part curves counter-clockwise from the axis to the internal wall and joins there.
Claim 7
Dependent Claim
42 words
An inertial air cleaner according to claim 1 wherein the tubular end section of the first disturber extending through the second partition to the front of the second air disturber has a plurality of air vents opened counter-clockwise toward the second partition.
Claim 8
Dependent Claim
38 words
An inertial air cleaner according to claim 1 wherein the second partition covering the whole cross section of the cylinder has a plurality of air vents opened counter-clockwise to the third air chamber and arranged in indented rows.
Claim 9
Dependent Claim
51 words
An inertial air cleaner according to claim 1 wherein the second funnel-shaped air disturber has a plurality of disturbing blades of which the front part curves from the axis of the cylinder to the internal wall and joins there, and the rear part becomes flat and connected to the exhaust pipe.
References Cited (Backward Citations)
US2413324A
Cited
US2487633A
Cited
US3902876A
Cited
US4173458A
Cited
US4187652A
Cited
US4179273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |