US4441504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic cuff to monitor blood pressure in polygraph instruments
Assignee: STOELTING COMPANY A CORP OF
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Filing: 1982-05-10
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Granted: 1984-04-10
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Expires: 2002-05-10
Abstract
Abstract This invention relates to an electronic cuff to monitor blood pressure which is non-invasive and non-pneumatic for high fidelity recording for use in polygraph recorders.
Inventors
- 👤 Donald A. Peterson
- 👤 Henry K. Skrzypczak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:54
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022; A61B5/02233
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
A non-invasive, non-pneumatic cuff for use in polygraph testing comprising a load cell, strain gauges on said load cell adapted to be connected to a polygraph instrument by a cable, a curved plate pivotally connected to said load cell, a combination screw and clutch to properly pressurize the plate and load cell against the arm of a subject to be examined, an arm band being adapted to secure said plate and load cell to the arm of the subject, said arm band having two ends, said load cell being provided with an end channel, one end of said arm band being securely anchored in said end channel.
Claim 2
Dependent Claim
107 words
A non-invasive, non-pneumatic cuff for use in polygraph testing comprising a load cell, strain gauges on said load cell adapted to be connected to a polygraph instrument by a cable, a curved plate pivotally connected to said load cell, a combination screw and clutch to properly pressurize the plate and load cell against the arm of a subject to be examined, an arm band being adapted to secure said plate and load cell to the arm of the subject, said arm band having two ends, said load cell being provided with an end channel, one end of said arm band being securely anchored in said end channel.
Claim 3
Dependent Claim
64 words
The device according to claim 1 wherein the load cell is aluminum with cutouts therein and spaced, oppositely-extending clefts said strain gauges are mounted in one of said cutouts of said load cell whereby any change in the blood pressure of the subject under examination will be picked up by said load cell through said strain guages and be imparted to the polygraph instrument.
Claim 4
Dependent Claim
48 words
The device according to claim 2 wherein said load cell is drilled and tapped to receive said screw, said screw, said screw having an end and being provided with a nylon washer on said end to bear against said curved plate, and a knob to manipulate said screw.
Claim 5
Dependent Claim
26 words
The device according to claim 3 wherein a saddle is secured to said curved plate, said saddle having side walls pivotally secured to said load cell.
Claim 6
Dependent Claim
25 words
The device according to claim 4 wherein a second saddle is pivotally secured to said load cell and a cylindrical roller is rotatively secured thereon.
Claim 7
Dependent Claim
31 words
The device according to claim 5 wherein said arm band is a Velcro strap, and is passed around said roller to apply the load cell to the arm of the subject.
Claim 8
Dependent Claim
20 words
The device according to claim 4 wherein means are provided in the load cell to limit rotation of the saddle.
Claim 9
Dependent Claim
18 words
The device according to claim 2 wherein the strain gauges comprise a compensation gauge and a compression gauge.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |