Patent US144569A successfully refreshed from Google Patents.
Patent US3744149A successfully refreshed from Google Patents.
US3744149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sucking flake hand dryer
Assignee: Individual
•
Filing: 1972-03-29
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Granted: 1973-07-10
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Expires: 1992-03-29
Abstract
Abstract A device for drying hands by blowing heated air and flakes over the hands in a hand drying shell and drawing the flakes from the hands and shell into a waste flake sack.
Inventors
- 👤 R Helbling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:26
CPC Classifications
A; A47; A47K; A47K10/00; A47K10/48
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
117 words
A sucking flake hand dryer comprising an air duct, a fresh air filter in said duct, an air heater in said duct,a rotatably driven rasp in said duct,an absorbent material bar, a guide for said bar opening into said duct below said rasp, a hand drying shell having a mouth at one end and exhaust openings at an opposite end, at least one air pipe leading from said rasp to said hand drying shell mouth, an exhaust housing, a waste flake sack in said exhaust housing, an exhaust air pipe connecting said shell openings to said exhaust housing and air suction means in communication with said exhaust housing, and an air intake fan after said first filter.
Claim 2
Dependent Claim
117 words
A sucking flake hand dryer comprising an air duct, a fresh air filter in said duct, an air heater in said duct,a rotatably driven rasp in said duct,an absorbent material bar, a guide for said bar opening into said duct below said rasp, a hand drying shell having a mouth at one end and exhaust openings at an opposite end, at least one air pipe leading from said rasp to said hand drying shell mouth, an exhaust housing, a waste flake sack in said exhaust housing, an exhaust air pipe connecting said shell openings to said exhaust housing and air suction means in communication with said exhaust housing, and an air intake fan after said first filter.
Claim 3
Dependent Claim
28 words
A sucking flake hand dryer as claimed in claim 1 including a feed plate for said bar in said guide and automatic means for advancing said feed plate.
Claim 4
Dependent Claim
23 words
A sucking flake hand dryer according to claim 2 wherein said automatic means includes a motor driven feed chain connected to said plate.
Claim 5
Dependent Claim
22 words
A sucking flake hand dryer according to claim 2 wherein said automatic means includes a motor driven feed screw for said plate.
Claim 6
Dependent Claim
29 words
A sucking flake hand dryer according to claim 2 wherein an indicating device is coupled to said feed plate to show the remaining length of said absorbent material bar.
Claim 7
Dependent Claim
20 words
A sucking flake hand dryer according to claim 3 wherein a delay switch is coupled to said automatic means motor.
Claim 8
Dependent Claim
19 words
A sucking flake hand dryer according to claim 1 including an air filter positioned after said air suction means.
Claim 9
Dependent Claim
17 words
A sucking flake hand dryer according to claim 1 wherein said bar consists of hygroscopic cellulose fibers.
Claim 10
Dependent Claim
16 words
A sucking flake hand dryer according to claim 1 wherein said bar consists of plastic foam.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |