David A Snider

US Patent:

49409441, Jul 10, 1990

Filed:

Feb 16, 1989

Appl. No.:

7/311506

Inventors:

David S. Steele - Wyoming OH
Randolph K. Armstrong - Cincinnati OH
David E. Snider - Pleasant Plain OH

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

G01N 2742

US Classification:

324425

Abstract:

An instrument for measuring cathodic protection voltage levels receives a signal representative of an externally applied, full-wave rectified power line frequency cathodic protection potential, which is subject to electrical interference. The fundamental power line frequency component and odd harmonics of that fundamental component are removed to produce a filtered signal. Selected parameters of the filtered signal are measured to provide an indication of the adequacy of the cathodic protection potential.

US Patent:

20220189624, Jun 16, 2022

Filed:

Mar 7, 2022

Appl. No.:

17/688623

Inventors:

- San Clemente CA, US
David Snider - Cincinnati OH, US
Timothy John Hughes - Palo Alto CA, US
Lina Derderian - San Clemente CA, US
James Cobb - Vista CA, US
Alison D. Burcar - San Clemente CA, US

International Classification:

G16H 40/63
A61B 5/00
A61B 5/0205
G16H 50/30
G16H 50/20
G16H 40/40
A61B 5/0215
A61B 5/021

Abstract:

A patient monitor configured to receive patient-information electrical signals from an invasive patient sensor and a minimally invasive patient sensor, the patient monitor including a base unit and a detachable user interface unit for displaying hemodynamic parameters determined by the base unit. The base unit and user interface unit can be docked together, tethered together through a cabled connection, or physically separated from one another using wireless communication to transmit and receive information. The base unit and the user interface unit may pair before the user interface unit displays data to link the base unit with the user interface unit. The patient monitor can be configured to switch between invasive and minimally invasive monitoring of hemodynamic parameters of a patient, using invasive measurements to calibrate minimally invasive measurements.

US Patent:

20180228386, Aug 16, 2018

Filed:

Apr 16, 2018

Appl. No.:

15/954218

Inventors:

- San Clemente CA, US
David Snider - Cincinnati OH, US
Timothy John Hughes - Palo Alto CA, US
Lina Derderian - San Clemente CA, US
James Cobb - Vista CA, US
Alison D. Burcar - San Clemente CA, US

International Classification:

A61B 5/0215
A61B 5/021
A61B 5/00

Abstract:

A patient monitor configured to receive patient-information electrical signals from an invasive patient sensor and a minimally invasive patient sensor, the patient monitor including a base unit and a detachable user interface unit for displaying hemodynamic parameters determined by the base unit. The base unit and user interface unit can be docked together, tethered together through a cabled connection, or physically separated from one another using wireless communication to transmit and receive information. The base unit and the user interface unit may pair before the user interface unit displays data to link the base unit with the user interface unit. The patient monitor can be configured to switch between invasive and minimally invasive monitoring of hemodynamic parameters of a patient, using invasive measurements to calibrate minimally invasive measurements.