US5301553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for remote sensing and receiving
Assignee: TJS DEVELOPMENT Corp Inc A CORPORATION OF WI
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Filing: 1991-11-13
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Granted: 1994-04-12
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Expires: 2011-11-13
Abstract
Abstract A sensing and displaying system is provided including a sensor unit having a transducer disposed in intimate contact with a vessel. The transducer senses a characteristic within the vessel like pressure and outputs an electrical signal representative thereof. The sensor unit further includes a response signal generator which transmits a signal representative of the characteristic. A receiver unit receives the transmitted signal and converts it to visual indicia of the characteristic, for example, a number on a liquid crystal display. The system is capable of two-way communication between the sensor unit and the receiver unit. Both the sensor unit and receiver unit store transmitted data in internal memory.
Inventors
- 👤 Thomas J. Schultz
- 👤 Alan J. Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:38
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/02; B60C23/04; B60C23/0408; B60C23/005; B60C23/009; B60C23/0422; B60C23/0423; B60C23/0479; B60C23/0491; B60C23/0496; G; G01; G01L; G01L19/00; G01L19/08; G01L19/086; A; A62; A62C; A62C37/00; A62C37/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
116 words
A sensor for operating in a remote detect and display system, said system being of the type including a receiver for displaying data transmitted by said sensor, said sensor being spatially separate from said receiver and comprising: transducer means for sensing a physical parameter associated with a work piece and generating a first electrical signal indicative of the parameter; first electrical signal processing means for generating a second electrical signal and transmitting said second electrical signal; and a response generator including an LED driver circuit and at least one LED driven thereby, said response generator being configured to transmit a response signal responsive to said second electrical signal, in infrared frequency range, indicative of the parameter.
Claim 2
Dependent Claim
116 words
A sensor for operating in a remote detect and display system, said system being of the type including a receiver for displaying data transmitted by said sensor, said sensor being spatially separate from said receiver and comprising: transducer means for sensing a physical parameter associated with a work piece and generating a first electrical signal indicative of the parameter; first electrical signal processing means for generating a second electrical signal and transmitting said second electrical signal; and a response generator including an LED driver circuit and at least one LED driven thereby, said response generator being configured to transmit a response signal responsive to said second electrical signal, in infrared frequency range, indicative of the parameter.
Claim 3
Dependent Claim
21 words
The device of claim 1, wherein the sensor further comprises a power source, and a memory for storing work piece data.
Claim 4
Dependent Claim
28 words
The device of claim 2, where the work piece is a fire extinguisher device and the work piece data is indicative of the identification of the fire extinguisher.
Claim 5
Dependent Claim
16 words
The device of claim 1, wherein the physical parameter comprises the pressure within the work piece.
Claim 6
Dependent Claim
17 words
The device of claim 1 wherein the physical parameter comprises weight of contents in the work piece.
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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) | 1997-04-11 | 1997-10-11 | 1998-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-11 | 2001-10-11 | 2002-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-11 | 2005-10-11 | 2006-04-12 | $7700.00 | Window Closed / Lapsed |