US3841553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaning unit for vehicles
Assignee: Lee Raymond Organization Inc
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Filing: 1973-04-02
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Granted: 1974-10-15
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Expires: 1993-04-02
Abstract
Abstract A combination air circulating and vacuum cleaning system for vehicles in which the intake of the conventional heater circulator system may be connected by valves alternately to either a fresh air intake, to an intake leading from the heater, or to an intake duct connected to a vacuum cleaning attachment duct. The proposed apparatus serves the conventional functions of an air heater and air circulator of a vehicle and provides the additional function of serving as a vacuum cleaner when it is desired to clean the vehicle.
Inventors
- 👤 A Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:52
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60S; B60S1/00; B60S1/02; B60S1/54; B60S1/62; B60S1/64
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
75 words
A combined air heating and air cleaning apparatus for use in vehicles, comprising a blower for drawing air in through either a fresh air intake, a heater intake, or a suction cleaning apparatus intake, said blower expelling the air through either a defrost outlet or a heater outlet in the vehicle, with a dust collection bag mounted in the cleaning intake line together with means to attach a cleaning hose to the cleaning intake line.
Claim 2
Dependent Claim
75 words
A combined air heating and air cleaning apparatus for use in vehicles, comprising a blower for drawing air in through either a fresh air intake, a heater intake, or a suction cleaning apparatus intake, said blower expelling the air through either a defrost outlet or a heater outlet in the vehicle, with a dust collection bag mounted in the cleaning intake line together with means to attach a cleaning hose to the cleaning intake line.
Claim 3
Dependent Claim
52 words
The combination as recited in claim 1, in which a valve may be set in the duct of the cleaning intake line so as to either permit passage of intake air through the cleaning line or to prevent passage of intake air through the cleaning intake line when the blower is on.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |