Patent US4144623A successfully refreshed from Google Patents.
US4144623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of tampon blanks
Assignee: Individual
•
Filing: 1977-06-27
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Granted: 1979-03-20
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Expires: 1997-06-27
Abstract
Abstract There is set forth a process for the production of a tampon, particularly for menstrual hygiene in which a fleece of absorbent cotton or similar material is wound up together with a retrieving string arranged on it. A fleece track is carried along approximately horizontally by a conveying device, a string coming from a supply roll is placed on the fleece track to be carried along in the direction of conveyance and subsequently cut off on the fleece track into a retrieving string, whereupon one part of the retrieving string is pressed onto the fleece track and the other part of the retrieving string is turned and whereupon the fleece is torn off the fleece track and wound up on a winding pin together with its retrieving string. There is also described an apparatus for carrying out the process.
Inventors
- 👤 Bert Steffens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:05
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2082; A61F13/2085
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
153 words
A method for the production of a tampon blank particularly adapted for menstral hygiene wherein a fleece made from absorbent cotton or the like is wound up together with a retrieving string arranged on said fleece, said method comprising carrying along a fleece track approximately horizontally by conveying means, supplying a string from a supply roll, placing said supplied string on the fleece track and carrying the string together with the fleece track along in the direction of conveyance, subsequently cutting off the string on the fleece track to form a retrieving string, thereupon pressing one part of the retrieving string onto the fleece track and turning the other part of the retriveing string to a direction transverse to said one part, thereupon tearing off a portion of the fleece track and winding up said torn off fleece track portion together with its retrieving string on a winding pin to form said blank.
Claim 2
Independent Claim
153 words
A method for the production of a tampon blank particularly adapted for menstral hygiene wherein a fleece made from absorbent cotton or the like is wound up together with a retrieving string arranged on said fleece, said method comprising carrying along a fleece track approximately horizontally by conveying means, supplying a string from a supply roll, placing said supplied string on the fleece track and carrying the string together with the fleece track along in the direction of conveyance, subsequently cutting off the string on the fleece track to form a retrieving string, thereupon pressing one part of the retrieving string onto the fleece track and turning the other part of the retriveing string to a direction transverse to said one part, thereupon tearing off a portion of the fleece track and winding up said torn off fleece track portion together with its retrieving string on a winding pin to form said blank.
Claim 3
Dependent Claim
17 words
The method of claim 1 comprising placing said supplied string in the middle of the fleece track.
Claim 4
Dependent Claim
26 words
The method of claim 1 comprising pressing the fleece track down to both sides of the part of the retrieving string which is to be turned.
Claim 5
Dependent Claim
17 words
The method of claim 3 comprising pneumatically turning the part of the retrieving string to be turned.
Claim 6
Dependent Claim
17 words
The method of claim 1 comprising pneumatically turning the part of the retrieving string to be turned.
Claim 7
Dependent Claim
17 words
The method of claim 1 comprising mechanically turning the part of the retrieving string to be turned.
Claim 8
Dependent Claim
22 words
The method of claim 1 wherein the fleece is torn off the fleece track at the cutoff point for the retrieving string.
Claim 9
Dependent Claim
22 words
The method of claim 7 comprising simultaneously cutting off the string on the fleece track and partially cutting through the fleece track.
Claim 10
Dependent Claim
37 words
The method of claim 1 comprising partially combing the torn off fleece into the winding pin together with its retrieving string by means of stick means, said stick means being adapted to remain in said tampon blank.
Claim 11
Dependent Claim
45 words
The method of claim 3 comprising placing a second fleece track on the already present fleece track after the turning of one part of the retrieving string to form a two-layered fleece track and subsequently tearing off a two-layered fleece from the two-layered fleece track.
Claim 12
Dependent Claim
45 words
The method of claim 1 comprising placing a second fleece track on the already present fleece track after the turning of one part of the retrieving string to form a two-layered fleece track and subsequently tearing off a two-layered fleece from the two-layered fleece track.
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) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |