US2981644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleaning looms
Assignee: Grinnell Corp
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Filing: 1956-04-23
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Granted: 1961-04-25
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Expires: 1976-04-23
Abstract
No abstract record available.
Inventors
- 👤 Mitchell S Fain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:44
CPC Classifications
D; D03; D03J; D03J1/00; D03J1/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
THE METHOD OF REMOVING LINT FROM LOOMS ARRANGED IN A ROW, AND FROM THE YARNS AND MATERIAL BEING PROCESSED THEREBY, SAID YARNS AND MATERIAL LYING IN A SUBSTANTIALLY HORIZONTAL PLANE, SAID METHOD COMPRISING THE STEPS OF CREATING A HIGH VELOCITY STREAM OF AIR FROM A SOURCE, DIRECTING SAID STREAM DOWNWARDLY ONTO SAID LOOMS AT AN ANGLE SUBSTANTIALLY LESS THAN 90* TO THE SAID PLANE OF THE YARNS AND MATERIALS, ROTATING SAID STREAM CONTINUOUSLY IN ONE DIRECTION SO THAT ITS AXIS GENERATES A CONICAL SURFACE OF REVOLUTION WITH SAID AXIS ALWAYS BEING AT AN ANGLE TO SAID PLANE, MOVING SAID SOURCE OVER AND PARALLEL TO SAID ROW AT A RATE CAUSING THE SAID AIRSTREAM TO INTERSECT SAID PLANE IN A CLOSELY OVERLAPPING CIRCUITOUS PATH WHOSE CONFIGURATION IS SUBSTANTIALLY THAT OF A CURTATE CYCLOID AND CAUSING SAID AIR STREAM TO SUBSTANTIALLY STRIKE A POINT ON SAID PLANE ALONG THE PATH OF TRAVEL OF AND BENEATH SAID SOURCE AT LEAST TWICE, ONCE DURING MOVEMENT ALONG THE FORWARD PORTION OF ITS CIRCUITOUS PATH AND ONCE DURING MOVEMENT ALONG THE REARWARD PORTION OF ITS CIRCUITOUS PATH THUS IMPINGING SAID AIR STREAM ON ANY GIVEN PORTION OF THE OBJECT BEING CLEANED AS A SERIES OF SHARP RAPID
Claim 2
Independent Claim
201 words
THE METHOD OF REMOVING LINT FROM LOOMS ARRANGED IN A ROW, AND FROM THE YARNS AND MATERIAL BEING PROCESSED THEREBY, SAID YARNS AND MATERIAL LYING IN A SUBSTANTIALLY HORIZONTAL PLANE, SAID METHOD COMPRISING THE STEPS OF CREATING A HIGH VELOCITY STREAM OF AIR FROM A SOURCE, DIRECTING SAID STREAM DOWNWARDLY ONTO SAID LOOMS AT AN ANGLE SUBSTANTIALLY LESS THAN 90* TO THE SAID PLANE OF THE YARNS AND MATERIALS, ROTATING SAID STREAM CONTINUOUSLY IN ONE DIRECTION SO THAT ITS AXIS GENERATES A CONICAL SURFACE OF REVOLUTION WITH SAID AXIS ALWAYS BEING AT AN ANGLE TO SAID PLANE, MOVING SAID SOURCE OVER AND PARALLEL TO SAID ROW AT A RATE CAUSING THE SAID AIRSTREAM TO INTERSECT SAID PLANE IN A CLOSELY OVERLAPPING CIRCUITOUS PATH WHOSE CONFIGURATION IS SUBSTANTIALLY THAT OF A CURTATE CYCLOID AND CAUSING SAID AIR STREAM TO SUBSTANTIALLY STRIKE A POINT ON SAID PLANE ALONG THE PATH OF TRAVEL OF AND BENEATH SAID SOURCE AT LEAST TWICE, ONCE DURING MOVEMENT ALONG THE FORWARD PORTION OF ITS CIRCUITOUS PATH AND ONCE DURING MOVEMENT ALONG THE REARWARD PORTION OF ITS CIRCUITOUS PATH THUS IMPINGING SAID AIR STREAM ON ANY GIVEN PORTION OF THE OBJECT BEING CLEANED AS A SERIES OF SHARP RAPID
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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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |