US3670615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web marking device
Assignee: Georgia Pacific Consumer Products LP
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Filing: 1970-11-18
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Granted: 1972-06-20
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Expires: 1990-11-18
Abstract
Abstract A marking device is employed in conjunction with a system for electrically detecting defects in a nonwoven web. The marking device uses the trimmings or waste portions of the web rather than marking the usable portion of the web. In response to a signal indicating the presence of a defect, the marking device moves the web laterally inward thereby leaving at least a portion of the trim attached to the web at the location of the defect.
Inventors
- 👤 Robert F Scholl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:24
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/20; G01N27/205; D; D06; D06H; D06H1/00; D06H3/00; D06H3/10; D06H7/00; D06H7/04; D06H7/06; Y; Y10; Y10S; Y10S83/00; Y10S83/923; Y10T; Y10T83/00; Y10T83/525; Y10T83/536
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
87 words
A marking device to mark locations of defects in a moving web comprising: a. a means for longitudinally moving said web; b. a trimming means for removing excess strips from the edges of said web; c. a detector circuit for generating an electric signal when a web defect is detected; d. means for moving said web laterally inward, said means positioned adjacent said trimming means and moving said web in response to said electrical signal thereby leaving a portion of the web trim attached to said web.
Claim 2
Dependent Claim
87 words
A marking device to mark locations of defects in a moving web comprising: a. a means for longitudinally moving said web; b. a trimming means for removing excess strips from the edges of said web; c. a detector circuit for generating an electric signal when a web defect is detected; d. means for moving said web laterally inward, said means positioned adjacent said trimming means and moving said web in response to said electrical signal thereby leaving a portion of the web trim attached to said web.
Claim 3
Dependent Claim
50 words
The device of claim 1 in which said marking means includes an arm positioned adjacent said trimming means and said web, said arm moving the web laterally inward in response to the signal from said circuit means and causing said trimming means to trim said web in an irregular pattern.
Claim 4
Dependent Claim
32 words
The device of claim 2 in which said marking means further includes a solenoid operated air cylinder connected to said arm, said air cylinder in response to the signal moving said arm.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |