US2650872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus utilizing compressional wave energy in the upper sonic and supersonic range for washing textiles
Assignee: Lever Brothers Co
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Filing: 1947-10-30
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Granted: 1953-09-01
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Expires: 1967-10-30
Abstract
No abstract record available.
Inventors
- 👤 Goldwasser Seymore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:13
CPC Classifications
D; D06; D06F; D06F19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A METHOD OF CLEANING SOILED TEXTILE ARTICLES, THE STEPS OF IMMERSING A SOIILED TEXTILE ARTICLE IN A CLEANING LIQUID WITH SUBSTANTIALLY ALL PORTIONS OF THE TEXTILE ARTICLE LYING ALONG AND IN LINE WITH A STRAIGHT PATH THEREIN, PROVIDING A VIBRATING ZONE FOR PRODUCING COMPRESSIONAL WAVE ENERGY OF LOW INTENSITY AND OF A FREQUENCY LYING IN THE UPPER AUDIBLE AND SUPERSONIC RANGE, PROPAGATING COMPRESSIONAL WAVE ENERGY FROM SAID ZONE IN LINE WITH AND PARALLEL TO SAID PATH IN THE LIQUID AND ALONG THE SOILED ARTICLE, PRODUCING STANDING WAVES WITH SAID HIGH FREQUENCY WAVE ENERGY FOR PRODUCING ALONG THE SOILED ARTICLE, STANDING WAVES NODES AND ANTINODES OF COMPRESSIONAL WAVE ENERGY, SAID NODES AND ANTINODES HAVING EFFECTIVE SOIL REMOVAL ACTION ON THE ARTICLE IN ZONES SPACED SUBSTANTIALLY ONE-HALF WAVE
Claim 2
Dependent Claim
127 words
IN A METHOD OF CLEANING SOILED TEXTILE ARTICLES, THE STEPS OF IMMERSING A SOIILED TEXTILE ARTICLE IN A CLEANING LIQUID WITH SUBSTANTIALLY ALL PORTIONS OF THE TEXTILE ARTICLE LYING ALONG AND IN LINE WITH A STRAIGHT PATH THEREIN, PROVIDING A VIBRATING ZONE FOR PRODUCING COMPRESSIONAL WAVE ENERGY OF LOW INTENSITY AND OF A FREQUENCY LYING IN THE UPPER AUDIBLE AND SUPERSONIC RANGE, PROPAGATING COMPRESSIONAL WAVE ENERGY FROM SAID ZONE IN LINE WITH AND PARALLEL TO SAID PATH IN THE LIQUID AND ALONG THE SOILED ARTICLE, PRODUCING STANDING WAVES WITH SAID HIGH FREQUENCY WAVE ENERGY FOR PRODUCING ALONG THE SOILED ARTICLE, STANDING WAVES NODES AND ANTINODES OF COMPRESSIONAL WAVE ENERGY, SAID NODES AND ANTINODES HAVING EFFECTIVE SOIL REMOVAL ACTION ON THE ARTICLE IN ZONES SPACED SUBSTANTIALLY ONE-HALF WAVE
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |