US3081500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing apertured nonwoven fabric
Assignee: Johnson and Johnson
•
Filing: 1956-07-27
•
Granted: 1963-03-19
•
Expires: 1976-07-27
Abstract
No abstract record available.
Inventors
- 👤 Hector W Griswold
- 👤 George W Pearce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:46
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/72; D04H1/736; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T442/00; Y10T442/10; Y10T442/184; Y10T442/186; Y10T442/60; Y10T442/608; Y10T442/609; Y10T442/611; Y10T442/643
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
133 words
A METHOD OF PRODUCING A NONWOVEN FABRIC HAVING SPACED HOLES ARRANGED IN A PREDETERMINED PATTERN FROM A LAYER OF IRREGULARLY ARRANGED FIBRES, WHICH COMPRISES SUPPORTING THE LAYER LOCALLY TO MAINTAIN ITS INTEGRITY, BY MEANS INCLUDING SPACED PROJECTIONS ARRANGED IN ACCORDANCE WITH SAID PATTERN, SUBJECTING THE SUPPORTED LAYER AT LATERALLY AND LONGITUDINAL SPACED AREAS CORRESPONDING TO SAID PREDETERMINED PATTERN TO ADJACENT, SIMULTANEOUSLY APPLIED FIBER REARRANGING FORCES, SAID FORCES MOVING SEGMENTS OF SAID FIBERS FROM LOCAL AREAS OF THE LAYER CORRESPONDING TO SAID PREDETERMINED PATTERN TO CLOSER PROXIMITY AND IN INTERLOCKING AND FRICTIONAL ENGAGEMENT WITH ONE ANOTHER, SAID LAYER BEING SUPPORTED WITH SUFFICIENT FREEDOM TO ALLOW SAID SEGMENTS TO BE MOVED AS AFORESAID INTO MECHANICAL EQUILIBRIUM IN THEIR NEW POSITIONS, WHEREBY A FABRIC IS PRODUCED COMPRISING DISTINCT OPENINGS ARRANGED SUBSTANTIALLY IN ACCORDANCE WITH SAID PATTERN,
Claim 2
Independent Claim
133 words
A METHOD OF PRODUCING A NONWOVEN FABRIC HAVING SPACED HOLES ARRANGED IN A PREDETERMINED PATTERN FROM A LAYER OF IRREGULARLY ARRANGED FIBRES, WHICH COMPRISES SUPPORTING THE LAYER LOCALLY TO MAINTAIN ITS INTEGRITY, BY MEANS INCLUDING SPACED PROJECTIONS ARRANGED IN ACCORDANCE WITH SAID PATTERN, SUBJECTING THE SUPPORTED LAYER AT LATERALLY AND LONGITUDINAL SPACED AREAS CORRESPONDING TO SAID PREDETERMINED PATTERN TO ADJACENT, SIMULTANEOUSLY APPLIED FIBER REARRANGING FORCES, SAID FORCES MOVING SEGMENTS OF SAID FIBERS FROM LOCAL AREAS OF THE LAYER CORRESPONDING TO SAID PREDETERMINED PATTERN TO CLOSER PROXIMITY AND IN INTERLOCKING AND FRICTIONAL ENGAGEMENT WITH ONE ANOTHER, SAID LAYER BEING SUPPORTED WITH SUFFICIENT FREEDOM TO ALLOW SAID SEGMENTS TO BE MOVED AS AFORESAID INTO MECHANICAL EQUILIBRIUM IN THEIR NEW POSITIONS, WHEREBY A FABRIC IS PRODUCED COMPRISING DISTINCT OPENINGS ARRANGED SUBSTANTIALLY IN ACCORDANCE WITH SAID PATTERN,
Claim 3
Dependent Claim
143 words
A MECHANISM FOR PRODUCING A NONWOVEN FABRIC HAVING SPACED HOLES ARRANGED IN A PREDETERMINED REGULAR PATTERN FROM A NONWOVEN FIBROUS LAYER HAVING AN IRREGULAR PATTERN, SAID MECHANISM COMPRISING HOLE-DEFINING MEANS COMPRISING PROJECTIONS ARRANGED IN A PREDETERMINED PATTERN HAVING INTERCONNECTED SPACES BETWEEN THEM, LAYERENGAGING MEANS ADAPTED TO COOPERATE WITH SAID HOLE-DEFINING MEANS FOR CONTINUOUSLY CONFINING THE LAYER BETWEEN THEM IN CONTACT WITH THE ENDS OF SAID PROJECTIONS, MEANS FOR CONSTRAINING SAID HOLE-DEFINING MEANS AND SAID LAYERENGAGING MEANS TOGETHER FOR CONFINING THE LAYER AS AFORESAID, AND MEANS FOR MOVING SAID HOLE-DEFINING MEANS AND SAID LAYER-ENGAGING MEANS WITH RESPECT TO ONE ANOTHER SUBSTANTIALLY IN THE PLANE OF THE LAYER BETWEEN THEM, WHEREBY THE FIBERS IN THE LAYER WILL BE MOVED AWAY FROM THE ENDS OF SAID PROJECTIONS TO PRODUCE A FABRIC HAVING PERFORATIONS ARRANGED IN SUBSTANTIALLY THE SAME PATTERN AS ARE THE ENDS OF SAID PROJECTIONS.
Claim 4
Dependent Claim
143 words
A MECHANISM FOR PRODUCING A NONWOVEN FABRIC HAVING SPACED HOLES ARRANGED IN A PREDETERMINED REGULAR PATTERN FROM A NONWOVEN FIBROUS LAYER HAVING AN IRREGULAR PATTERN, SAID MECHANISM COMPRISING HOLE-DEFINING MEANS COMPRISING PROJECTIONS ARRANGED IN A PREDETERMINED PATTERN HAVING INTERCONNECTED SPACES BETWEEN THEM, LAYERENGAGING MEANS ADAPTED TO COOPERATE WITH SAID HOLE-DEFINING MEANS FOR CONTINUOUSLY CONFINING THE LAYER BETWEEN THEM IN CONTACT WITH THE ENDS OF SAID PROJECTIONS, MEANS FOR CONSTRAINING SAID HOLE-DEFINING MEANS AND SAID LAYERENGAGING MEANS TOGETHER FOR CONFINING THE LAYER AS AFORESAID, AND MEANS FOR MOVING SAID HOLE-DEFINING MEANS AND SAID LAYER-ENGAGING MEANS WITH RESPECT TO ONE ANOTHER SUBSTANTIALLY IN THE PLANE OF THE LAYER BETWEEN THEM, WHEREBY THE FIBERS IN THE LAYER WILL BE MOVED AWAY FROM THE ENDS OF SAID PROJECTIONS TO PRODUCE A FABRIC HAVING PERFORATIONS ARRANGED IN SUBSTANTIALLY THE SAME PATTERN AS ARE THE ENDS OF SAID PROJECTIONS.
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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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |