US3769475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic break detector sensor
Assignee: General Electric Co
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Filing: 1971-10-21
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Granted: 1973-10-30
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Expires: 1991-10-21
Abstract
Abstract A pneumatic break detector sensor for detecting a break in a stranded material during its manufacturing process including a sensor head having a V-grooved slot through which the strand passes and to the center of which pressurized air is supplied, the pressurized air exiting through a sensing hole provided in the center of the V-grooved slot, and the back pressure level of the supplied air being sensed to provide an indication of a break in the strand of material.
Inventors
- 👤 B Czwakiel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:39
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/005; B; B65; B65H; B65H63/00; B65H63/02; B65H63/024; B65H63/028; B65H63/032; B65H63/0328; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
Apparatus for pneumatically detecting discontinuities in a continuous moving length of strand-like material comprising: a. a sensor head having a first side and a second side opposite said first side; b. said head having a slot between said first and second sides and extending inwardly from a front side for passing the continuous moving length of strand-like material therethrough, a recessed cut-out section in a back side and extending inwardly therefrom, and a passage through said sensor head from said slot to said recessed cut-out section; c. a manifold having a passage therethrough; d. said cut-out section receiving at least a portion of said manifold therewithin; e. means sealingly and fluidically interconnecting the passage in said manifold to the passage in said sensor head; and f. means fluidically connected to said manifold for sensing the back pressure level of fluid supplied through the passages in said manifold and sensor head to said slot for indicating a change in the continuity of the strand-like material passing through said slot.
Claim 2
Dependent Claim
168 words
Apparatus for pneumatically detecting discontinuities in a continuous moving length of strand-like material comprising: a. a sensor head having a first side and a second side opposite said first side; b. said head having a slot between said first and second sides and extending inwardly from a front side for passing the continuous moving length of strand-like material therethrough, a recessed cut-out section in a back side and extending inwardly therefrom, and a passage through said sensor head from said slot to said recessed cut-out section; c. a manifold having a passage therethrough; d. said cut-out section receiving at least a portion of said manifold therewithin; e. means sealingly and fluidically interconnecting the passage in said manifold to the passage in said sensor head; and f. means fluidically connected to said manifold for sensing the back pressure level of fluid supplied through the passages in said manifold and sensor head to said slot for indicating a change in the continuity of the strand-like material passing through said slot.
Claim 3
Dependent Claim
19 words
Apparatus according to claim 1 further including means for fastening said portion of said manifold to said sensor head.
Claim 4
Dependent Claim
34 words
Apparatus according to claim 1 wherein said interconnecting means further includes a first tubular portion extending outward from one end of the passage in said manifold and into the passage in said sensor head.
Claim 5
Dependent Claim
36 words
Apparatus according to claim 3 wherein said interconnecting means further includes a second tubular portion integral with said first tubular portion passing through the passage in said manifold and extending outward from the other end thereof.
Claim 6
Dependent Claim
15 words
Apparatus according to claim 1 further including a mounting bracket integrally formed with said manifold.
Claim 7
Dependent Claim
20 words
Apparatus according to claim 1 further including a pressure switch actuatable in response to a predetermined fluid back pressure level.
References Cited (Backward Citations)
US3188856A
Cited
US3254528A
Cited
US3199339A
Cited
US3283564A
Cited
US3576411A
Cited
US3635413A
Cited
US3683677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |