US4476608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removal of ash
Assignee: PIA TEXTILES HELGAVEJ 16 DK-5230 ODENSE M DENMARK AS
•
Filing: 1982-08-25
•
Granted: 1984-10-16
•
Expires: 2002-08-25
Abstract
Abstract Apparatus for removal of ash and the like from open fireplaces, ashpans etc. by means of a vacuum cleaner, said apparatus comprising an airtight ash container, an inlet pipe stub for ash and air and an outlet pipe stub to be connected with a suction source such as a vacuum cleaner, wherein the container comprises a barrel with a bottom and an easily mountable and dismountable cover or lid and wherein the lid or cover carries the inlet pipe stub and the outlet pipe stub.
Inventors
- 👤 Ib R. Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:03
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/0071; F; F23; F23J; F23J1/00; F23J1/02; F24; F24B; F24B13/00; F24B13/006; F24B13/008
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
136 words
An apparatus for removal of ash and the like from open fireplaces or ashpans by means of a vacuum cleaner, said apparatus comprising an airtight ash container, an inlet pipe stub for ash and air and an outlet pipe stub connectable with a suction source, the container comprising a cylindrical barrel with a bottom and an easily mountable and dismountable circular cover carrying the inlet pipe stub and the outlet pipe stub, wherein the outlet pipe stub is perpendicular to the cover in its center zone and the inlet pipe stub is positioned in the peripheral zone of the cover and inclined toward the center of the cover to form an angle with the plane of the cover in the range of from 30 to 85 degrees as indicated by the power of the suction source.
Claim 2
Independent Claim
136 words
An apparatus for removal of ash and the like from open fireplaces or ashpans by means of a vacuum cleaner, said apparatus comprising an airtight ash container, an inlet pipe stub for ash and air and an outlet pipe stub connectable with a suction source, the container comprising a cylindrical barrel with a bottom and an easily mountable and dismountable circular cover carrying the inlet pipe stub and the outlet pipe stub, wherein the outlet pipe stub is perpendicular to the cover in its center zone and the inlet pipe stub is positioned in the peripheral zone of the cover and inclined toward the center of the cover to form an angle with the plane of the cover in the range of from 30 to 85 degrees as indicated by the power of the suction source.
Claim 3
Dependent Claim
14 words
The apparatus according to claim 1 wherein the angle of inclination is 60 degrees.
Claim 4
Dependent Claim
27 words
The apparatus according to claim 1 is also inclined at an angle of from 30 to 85 degrees along a chord of the plane of the cover.
Claim 5
Independent Claim
167 words
An apparatus for removal of ash and the like from open fireplaces or ash pans by means of a vacuum cleaner, said apparatus comprising an airtight ash container, an inlet pipe stub for ash and air and an outlet pipe stub connectable with a suction source, the container comprising a cylindrical barrel with a bottom and an easily mountable and dismountable circular cover carrying the inlet pipe stub and the outlet pipe stub, wherein the outlet pipe stub is perpendicular to the cover in its center zone and the inlet pipe stub is positioned in the peripheral zone of the cover, the lower portion of the inlet pipe stub carries an elbow element having an elbow angle in the range of from 90 to 175 degrees, the free end of the elbow element being directed at the inner surface of the barrel at an angle of from 10 to 80 degrees with the radially outwardly adjacent barrel surface, said pipe stub being perpendicular to the cover plane.
Claim 6
Independent Claim
167 words
An apparatus for removal of ash and the like from open fireplaces or ash pans by means of a vacuum cleaner, said apparatus comprising an airtight ash container, an inlet pipe stub for ash and air and an outlet pipe stub connectable with a suction source, the container comprising a cylindrical barrel with a bottom and an easily mountable and dismountable circular cover carrying the inlet pipe stub and the outlet pipe stub, wherein the outlet pipe stub is perpendicular to the cover in its center zone and the inlet pipe stub is positioned in the peripheral zone of the cover, the lower portion of the inlet pipe stub carries an elbow element having an elbow angle in the range of from 90 to 175 degrees, the free end of the elbow element being directed at the inner surface of the barrel at an angle of from 10 to 80 degrees with the radially outwardly adjacent barrel surface, said pipe stub being perpendicular to the cover plane.
Claim 7
Dependent Claim
51 words
The apparatus according to claim 4 wherein said elbow element is pivotable about said inlet pipe stub lower portion and said elbow element and said lower portion carry mutually cooperating means to limit said angle with the radially outwardly adjacent inner surface of said barrel to said 10 to 80 degrees.
References Cited (Backward Citations)
US2867231A
Cited
US3029463A
Cited
US3490208A
Cited
US4041569A
Cited
US4179769A
Cited
US4246676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |