US3601138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeler and control device
Assignee: Individual
•
Filing: 1969-06-19
•
Granted: 1971-08-24
•
Expires: 1989-06-19
Abstract
Abstract A feeler and a control device formed of a nozzle and a reflecting surface or plate determining the presence or absence on body surface within the control area includes a nozzle having an inner passage emitting an inner control jet and an outer passage surrounding the inner passage and terminating in an annular part of substantial length. Gas under pressure is supplied to both the passages. A signal device for measuring the pressure is connected to the inner passages.
Inventors
- 👤 Hansheinrich Glattli
- 👤 Jan Richard Peter De Fries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:15
CPC Classifications
F; F15; F15B; F15B5/00; F15B5/003; G; G01; G01B; G01B13/00; Y; Y10; Y10T; Y10T137/00; Y10T137/206
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
247 words
A feeler and control device comprising a nozzle and a reflecting surface or plate and serving to determine and ascertain the presence or absence and the exact position of a body or a body surface within a control area, said nozzle delivering a control jet directed towards the said reflecting surface or plate, wherein the said nozzle includes an inner passage for emitting an inner control jet and an outer passage for forming an outer jet to guide the inner control jet on its way from the said nozzle to the said reflecting plate or surface, said outer passage being tubular and round in cross section, the outlet portion of said passage comprising an annular part of substantial length, the spEed of the said outer jet being greater than the speed of the said inner control jet, whereby at least the first considerably rise of pressure within the area of the said inner control jet takes place upon the outer hollow cylindrical jet striking the reflecting surface or plate, and whereby the rise in pressure of the said inner control jet is comparable as to steepness and direction to the signal produced normally between the said reflecting surface or plate and the said nozzle, the outer passage being connected on its inlet side with a source of pressure medium and serving to deliver the outer jet, and the inner passage being arranged concentrically to the said outer passage and its inlet being connected with a signal means.
Claim 2
Dependent Claim
247 words
A feeler and control device comprising a nozzle and a reflecting surface or plate and serving to determine and ascertain the presence or absence and the exact position of a body or a body surface within a control area, said nozzle delivering a control jet directed towards the said reflecting surface or plate, wherein the said nozzle includes an inner passage for emitting an inner control jet and an outer passage for forming an outer jet to guide the inner control jet on its way from the said nozzle to the said reflecting plate or surface, said outer passage being tubular and round in cross section, the outlet portion of said passage comprising an annular part of substantial length, the spEed of the said outer jet being greater than the speed of the said inner control jet, whereby at least the first considerably rise of pressure within the area of the said inner control jet takes place upon the outer hollow cylindrical jet striking the reflecting surface or plate, and whereby the rise in pressure of the said inner control jet is comparable as to steepness and direction to the signal produced normally between the said reflecting surface or plate and the said nozzle, the outer passage being connected on its inlet side with a source of pressure medium and serving to deliver the outer jet, and the inner passage being arranged concentrically to the said outer passage and its inlet being connected with a signal means.
Claim 3
Dependent Claim
42 words
The device set forth in claim 1, wherein the said inner passage has a first channel portion of constant diameter which is connectable to the signal line and a conical portion enlarging in direction towards the free end on the outlet side.
Claim 4
Dependent Claim
48 words
The device set forth in claim 1, wherein the distance between the said nozzle and the said reflecting surface or plate lies within a range between a minimal amount corresponding to a fraction of the nozzle diameter and a maximal amount corresponding to several times the nozzle diameter.
Claim 5
Dependent Claim
110 words
The device set forth in claim 1, wherein the said outer passage is connected with a supply line for the pressure medium through a distributing channel and consists as seen in direction of flow of an inlet portion having the shape of a first cylindrical ring, and of a middle portion having the shape of a conical ring narrowing in direction towards the outlet, the outlet portion having the shape of a second cylindrical ring the outer diameter and the width of which are smaller than the corresponding dimensions of the first cylindrical ring and the length of which in axial direction is about five times greater than its width.
Claim 6
Dependent Claim
37 words
The device set forth in claim 4, wherein the said outer passage and the said inner passage are connected by a connection channel containing a throttling portion the cross section of which is adjustable from the outside.
Claim 7
Dependent Claim
31 words
The device set forth in claim 5, wherein the said throttling portion is constituted by a narrow passage in a threaded body screwed into a threaded portion of the connecting channel.
Claim 8
Dependent Claim
89 words
The device set forth in claim 6, wherein there is provided a nozzle-containing body containing the outer passage and the inner passage and a connecting body containing the connections for the said two passages and for the throttling portion, said passage-containing body and said connecting body being assembled to form a unitary block, said passage-containing body comprising two portions surrounding one another in coaxial arrangement, the inner one of said two portions containing the inner passage and the outer one of the said two portions containing the outer passage.
Claim 9
Dependent Claim
25 words
The device set forth in claim 7, wherein a signal-amplifying device is assembled with the passage-containing body and the connecting body to form a unit.
Claim 10
Dependent Claim
52 words
The device set forth in claim 7, wherein the portion of said passage-containing body corresponding to the outlet openings of the said passages tapers conically so as to narrow in direction towards the free end thereof, its outer peripherical surface enclosing with the longitudinal axis an acute angle of at most 40*.
Claim 11
Dependent Claim
59 words
The device set forth in claim 9, wherein the said unitary block constituted by the said passage-containing body and the said connecting body is surrounded by a protecting sleeve the free end of which projects beyond the free ends of the said two passages as seen in axial direction and which contains several bores distributed uniformly along its circumference.
References Cited (Backward Citations)
US2692498A
Cited
US3039490A
Cited
US3232095A
Cited
US3258023A
Cited
US3272215A
Cited
US3250116A
Cited
US3482433A
Cited
US3503410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |