US3877485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic sensor
Assignee: Dana Inc
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Filing: 1973-06-15
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Granted: 1975-04-15
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Expires: 1993-06-15
Abstract
Abstract A fluidic sensor having a rectangular surface is utilized to sense the presence of objects. The sensor body has a fluid inlet and a fluid outlet adjacent the surface which are in communication with an emitter port and a receiver port, respectively. The sensor is utilized with a fluidic gate system to sense the presence or absence of the sheet material, cylindrical objects or objects having other shapes.
Inventors
- 👤 Richard J Wojcikowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:12
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/08; B; B21; B21D; B21D55/00; F15C1/005; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2267; Y10T137/2278; Y10T137/2322
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
199 words
A fluidic sensor comprising: a. a sensor body having a fluid inlet port, a fluid outlet port and a generally planar external face; b. an emitter port in communication with said inlet port, said emitter port being defined within the body adjacent the planar face and oriented so as to discharge fluid at an acute angle outwardly from said planar face; c. a receiver port in communication with said outlet port and said planar face, said receiver port being spaced along saiD planar face from said emitter port in a direction, generally corresponding to the discharge from said emitter port; d. a recess in said planar face adjacent said emitter e. e. a pressure drop chamber in said body in communication with said planar face between said emitter and receiver ports and adjacent said receiver port; and f. a cusp in said receiver port on the side thereof opposite said emitter port and adjacent said planar face, said emitter port, receiver port, pressure drop chamber and cusp being positioned with respect to said planar face to normally guide a portion of the fluid flow from said emitter port into the receiver port in the absence of an external interference
Claim 2
Dependent Claim
199 words
A fluidic sensor comprising: a. a sensor body having a fluid inlet port, a fluid outlet port and a generally planar external face; b. an emitter port in communication with said inlet port, said emitter port being defined within the body adjacent the planar face and oriented so as to discharge fluid at an acute angle outwardly from said planar face; c. a receiver port in communication with said outlet port and said planar face, said receiver port being spaced along saiD planar face from said emitter port in a direction, generally corresponding to the discharge from said emitter port; d. a recess in said planar face adjacent said emitter e. e. a pressure drop chamber in said body in communication with said planar face between said emitter and receiver ports and adjacent said receiver port; and f. a cusp in said receiver port on the side thereof opposite said emitter port and adjacent said planar face, said emitter port, receiver port, pressure drop chamber and cusp being positioned with respect to said planar face to normally guide a portion of the fluid flow from said emitter port into the receiver port in the absence of an external interference
Claim 3
Dependent Claim
30 words
The fluidic sensor of claim 1 wherein said pressure drop, chamber is defined by a cavity within said body and a slot communicating between said cavity and said planar surface.
Claim 4
Dependent Claim
24 words
The fluidic sensor of claim 1 wherein said emitter port is at an angle of about 12* to 15* with respect to said face.
Claim 5
Dependent Claim
36 words
The fluidic sensor of claim 1 wherein said emitter port has a thickness t measured generally perpendicular to said face and said recess extends into said face by a distance of from about t to 1.5t.
Claim 6
Dependent Claim
46 words
The fluidic sensor of claim 1 wherein said emitter port has a thickness t measured generally perpendicular to said face and said receiver port has an opening in said face measured along a line connecting said emitter and said receiver ports of from 20t to 30t.
Claim 7
Dependent Claim
21 words
The fluidic sensor of claim 1 wherein said cusp comprises a concave surface in said receiver port and adjacent said face.
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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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |