US3576411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for detecting discontinuities in a moving article
Assignee: Rhone Poulenc SA
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Filing: 1968-01-03
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Granted: 1971-04-27
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Expires: 1988-01-03
Abstract
Abstract The invention relates to an apparatus for detecting discontinuities in a moving article, e.g. a punched tape, in which a jet of gas is directed onto one side of the article. If a discontinuity is present, this is detected by a pressure sensitive device, e.g. a diaphragm on the other side of the article which is actuated by the gas jet, to operate an electrical device, e.g. a switch.
Inventors
- 👤 Georges Baroin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:13
CPC Classifications
G; G01; G01N; G01N19/00; G01N19/08; G01B; G01B13/00; G06; G06K; G06K7/00; G06K7/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
154 words
Apparatus for detecting discontinuities in a moving article, said apparatus comprising, in combination: a. a body member having a first side and a second side opposite said first side; b. a groove defined in said body member on said first side thereof; c. a block resiliently urged inwardly toward said body on the first side thereof, to define, with said groove moving article guide means effective to guide said moving article into and out of said body member between said first and second sides; d. gas jet nozzle means on said first side of said body effective to direct the gas jet against at least a portion of said moving article in said guide means; e. dynamic gas pressure sensitive means on said second side of said body in register with said gas jet nozzle means; and f. electrical means operatively associated with said dynamic gas pressure sensitive means effective to be actuated thereby.
Claim 2
Dependent Claim
154 words
Apparatus for detecting discontinuities in a moving article, said apparatus comprising, in combination: a. a body member having a first side and a second side opposite said first side; b. a groove defined in said body member on said first side thereof; c. a block resiliently urged inwardly toward said body on the first side thereof, to define, with said groove moving article guide means effective to guide said moving article into and out of said body member between said first and second sides; d. gas jet nozzle means on said first side of said body effective to direct the gas jet against at least a portion of said moving article in said guide means; e. dynamic gas pressure sensitive means on said second side of said body in register with said gas jet nozzle means; and f. electrical means operatively associated with said dynamic gas pressure sensitive means effective to be actuated thereby.
Claim 3
Dependent Claim
17 words
The apparatus defined in claim 1, wherein said gas jet nozzle means is mounted on said block.
Claim 4
Dependent Claim
147 words
Apparatus for detecting discontinuities in a moving article, said apparatus comprising, in combination: a. a body member having a first side and a second side opposite said first side; b. moving article guide means associated with said body member effective to guide said moving article into and out of said body member between said first and second sides; c. gas jet nozzle means on said first side of said body effective to direct the gas jet against at least a portion of said moving article in said guide means; d. means defining an opening through said body in register with said gas jet nozzle means; e. dynamic gas pressure sensitive means on said second side of said body in register with said opening and said gas jet nozzle means; and f. electrical means operatively associated with said dynamic gas pressure sensitive means effective to be actuated thereby.
Claim 5
Dependent Claim
147 words
Apparatus for detecting discontinuities in a moving article, said apparatus comprising, in combination: a. a body member having a first side and a second side opposite said first side; b. moving article guide means associated with said body member effective to guide said moving article into and out of said body member between said first and second sides; c. gas jet nozzle means on said first side of said body effective to direct the gas jet against at least a portion of said moving article in said guide means; d. means defining an opening through said body in register with said gas jet nozzle means; e. dynamic gas pressure sensitive means on said second side of said body in register with said opening and said gas jet nozzle means; and f. electrical means operatively associated with said dynamic gas pressure sensitive means effective to be actuated thereby.
Claim 6
Dependent Claim
59 words
The apparatus defined in claim 3, wherein said dynamic gas pressure sensitive means comprise an elastic diaphragm secured to said second side of said body to extend over said opening and a push member abutting said diaphragm effective to be pushed by said diaphragm upon flexure of the latter under the action of a gas jet from said nozzle.
Claim 7
Dependent Claim
19 words
The apparatus defined in claim 4, wherein said electrical means includes an electrical switch operated by said push member.
Claim 8
Dependent Claim
53 words
The apparatus defined in claim 5, wherein said electrical switch includes first and second leaf springs carried by said body member and electrically insulated from one another, and first and second contacts carried by said first and second leaf springs respectively, said first leaf spring being in abutting relation to said push member.
Claim 9
Dependent Claim
15 words
The apparatus defined in claim 6, wherein the position of said second contact is adjustable.
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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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |