US4024735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing machine
Assignee: KONCAR RADE
•
Filing: 1975-11-28
•
Granted: 1977-05-24
•
Expires: 1995-11-28
Abstract
Abstract A clothes-washing machine comparable to those of the automatic type, which incorporates a device for the formation and circulation of an induced airflow in order to effectuate the drying of clothes which are present in the drum of the machine. The device comprises a single resistor for carrying out the functions of heating the washing water and heating the air for drying, so as to result in a simplification in the structure and composition of the machine. Similarly, a motor which actuates a turbine for producing the induced flow of drying air is the same motor which, at the appropriate operating stage drives the water-circulating pump, also in this manner, to simplify the structure of the machine.
Inventors
- 👤 Sergio Marchiselli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:28
CPC Classifications
D; D06; D06F; D06F25/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
182 words
A clothes-washing machine comprising a casing, a fixed cylindrical component in said casing, a rotatable drum mounted coaxially within said fixed cylindrical component and forming a space therewith, said rotatable drum having a wall with apertures therein, said rotatable drum being adapted to receive clothes to be washed, a curved plate secured to said fixed component in the space between said drum and said fixed component, said curved plate extending non-parallel to said fixed component and defining a chamber therewith having an upper inlet provided by an aperture formed in the cylindrical component for admission of air thereinto and a lower outlet which opens into the space between the drum and the fixed component, a set of heating resistors located in said chamber proximate said lower outlet, and a prism-shaped piece of triangular section forming a deflector mounted on said fixed component in the space between said drum and said fixed component and opposite and adjacent said outlet of the chamber for diverting air discharged from said outlet so that said air enters the rotating drum through said apertures in its wall.
Claim 2
Dependent Claim
182 words
A clothes-washing machine comprising a casing, a fixed cylindrical component in said casing, a rotatable drum mounted coaxially within said fixed cylindrical component and forming a space therewith, said rotatable drum having a wall with apertures therein, said rotatable drum being adapted to receive clothes to be washed, a curved plate secured to said fixed component in the space between said drum and said fixed component, said curved plate extending non-parallel to said fixed component and defining a chamber therewith having an upper inlet provided by an aperture formed in the cylindrical component for admission of air thereinto and a lower outlet which opens into the space between the drum and the fixed component, a set of heating resistors located in said chamber proximate said lower outlet, and a prism-shaped piece of triangular section forming a deflector mounted on said fixed component in the space between said drum and said fixed component and opposite and adjacent said outlet of the chamber for diverting air discharged from said outlet so that said air enters the rotating drum through said apertures in its wall.
Claim 3
Dependent Claim
23 words
A machine as claimed in claim 1 wherein said curved plate extends over a portion of the periphery of the fixed cylindrical component.
Claim 4
Dependent Claim
20 words
A machine as claimed in claim 2 wherein said chamber widens in a direction from the inlet to the outlet.
Claim 5
Dependent Claim
74 words
A machine as claimed in claim 1 comprising a loading door, a hollow connection member including a door frame, said hollow connection member being secured to said fixed component, said fixed component and said rotatable drum having access openings through which clothes can be introduced into and removed from said rotatable drum when the loading door is opened, said connection member having an opening for inlet of air from the interior of said drum.
Claim 6
Dependent Claim
20 words
A machine as claimed in claim 4 wherein said connection member is an annular member of S - shaped cross-section.
Claim 7
Dependent Claim
60 words
A machine as claimed in claim 4 wherein said connection member has one end secured to the fixed component and an opposite end forming said door frame, said connection member having an inner wall provided with said opening for inlet of air from the interior of said drum and an outer wall with an opening for discharge of the air.
Claim 8
Dependent Claim
29 words
A machine as claimed in claim 6 comprising means connected to said opening in the outer wall of said connection member for discharging the air externally of the casing.
Claim 9
Dependent Claim
42 words
A machine as claimed in claim 7 wherein said means for discharging the air externally of the casing comprises an extractor turbine, and an exhaust chamber coupled to said opening in the outer wall of said connecting member and to said turbine.
Claim 10
Dependent Claim
35 words
A machine as claimed in claim 8 comprising a water pump connected to said fixed component for discharge of water therein and a motor connected to said pump and to said turbine in driving relation.
References Cited (Backward Citations)
US1799649A
Cited
US2875526A
Cited
US2975623A
Cited
US3114653A
Cited
US3167409A
Cited
US3868835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |