Patent US3243832A successfully refreshed from Google Patents.
US3243832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary brush
Assignee: Electrolux Corp
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Filing: 1963-11-15
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Granted: 1966-04-05
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Expires: 1983-11-15
Abstract
No abstract record available.
Inventors
- 👤 Oliver L Allen
- 👤 John J Moughty
- 👤 William A Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:58
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/02; A46B13/04; A46B13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A FLOOR POLISHER BRUSH, A CIRCULAR DISC OF MOLDED PLASTIC HAVING A RELATIVELY THIN WALL SECTION, A PLURALITY OF CHANNELS FORMED ON ONE FACE OF SAID DISC BY PAIRS OF CONTINUOUS PARALLEL WALL INTEGRAL WITH SAID DISC AND EXTENDING OUTWARDLY FROM SAID FACE, THE WALLS OF EACH PAIR HAVING SECTIONS WHICH ARE ALTERNATELY CLOSER TOGETHER AND FARTHER APART, AND STRIPS OF BRISTLES INCLUDING ELONGATED METAL BACKS RECEIVED IN SAID CHANNELS AND CLAMPED BETWEEN THE WALL SECTIONS WHICH ARE CLOSER TOGERHER, THE WALL SECTIONS WHICH ARE FARTHER APART BEING INTEGRAL WITH THE ADJACENT SECTIONS WHICH ARE CLOSER TOGETHER IN ORDER THAT THE FORMER WILL RESIST SPREADING APART OF THE LATTER TO THEREBY INCREASE THE CLAMPING OF THE LATTER AGAINST THE METAL BACK OF SAID STRIP.
Claim 2
Dependent Claim
125 words
IN A FLOOR POLISHER BRUSH, A CIRCULAR DISC OF MOLDED PLASTIC HAVING A RELATIVELY THIN WALL SECTION, A PLURALITY OF CHANNELS FORMED ON ONE FACE OF SAID DISC BY PAIRS OF CONTINUOUS PARALLEL WALL INTEGRAL WITH SAID DISC AND EXTENDING OUTWARDLY FROM SAID FACE, THE WALLS OF EACH PAIR HAVING SECTIONS WHICH ARE ALTERNATELY CLOSER TOGETHER AND FARTHER APART, AND STRIPS OF BRISTLES INCLUDING ELONGATED METAL BACKS RECEIVED IN SAID CHANNELS AND CLAMPED BETWEEN THE WALL SECTIONS WHICH ARE CLOSER TOGERHER, THE WALL SECTIONS WHICH ARE FARTHER APART BEING INTEGRAL WITH THE ADJACENT SECTIONS WHICH ARE CLOSER TOGETHER IN ORDER THAT THE FORMER WILL RESIST SPREADING APART OF THE LATTER TO THEREBY INCREASE THE CLAMPING OF THE LATTER AGAINST THE METAL BACK OF SAID STRIP.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |