US3080059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic counterbalancing control means for a rotating receptacle
Assignee: Whirlpool Corp
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Filing: 1960-02-12
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Granted: 1963-03-05
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Expires: 1980-02-12
Abstract
No abstract record available.
Inventors
- 👤 William F Scott
- 👤 Alvin E Burkall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:21
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/32; F16F15/36; D; D06; D06F; D06F37/00; D06F37/20; D06F37/22; D06F37/225
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
141 words
A LAUNDRY APPARATUS COMPRISING AN IMPERFORATE OUTER CASING FOR RETENTION OF LAUNDRY LIQUID, A PERFORATE DRUM JOURNALED FOR ROTATION IN SAID CASING ON A HORIZONTAL AXIS, A BASE FRAME HAVING CONNECTION WITH SAID CASING SUFFICIENTLY RIGID TO CONFINE SAID CASING FOR LIMITED MOVEMENTS ON AN ARCUATE PATH ABOUT AN AXIS OFFSET FROM THE ROTATIONAL AXIS OF THE DRUM, A CONTROL MEMBER HAVING A PIVOT PIN, MEANS ON SAID BASE FRAME AND SAID CASING FORMING TWO CONFRONTING FLAT SURFACES RELATIVELY MOVABLE LINEARLY, SAID PIVOT PIN BEING POSITIONED BETWEEN AND ENGAGING SAID SURFACES TO PIVOT ON ITS AXIS IN UNISON WITH THE MOVEMENT OF SAID CASING RELATIVE TO SAID BASE FRAME, AND MEANS INCLUDING MEANS REGULATED BY SAID CONTROL MEMBER FOR FLUID BALANCING UNSYMMETRICAL CENTRIFUGAL FORCES GENERATED DURING ROTATION OF SAID DRUM TO WHICH MOVEMENTS OF SAID CASING ON SAID PATH ARE RESPONSIVE.
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |