Howard N Wagner

US Patent:

40977935, Jun 27, 1978

Filed:

Oct 22, 1976

Appl. No.:

5/734948

Inventors:

Jonathan S. Shapiro - Greenwich CT
Vincent Berluti - West Haven CT
Anthony Pellegrino - Brewster NY
Howard G. Wagner - Stamford CT

Assignee:

The Machlett Laboratories, Inc. - Stamford CT

International Classification:

G01R 31024

US Classification:

324 20R

Abstract:

An X-ray tube test system comprising signal processing circuitry including means for converting an analog signal representative of anode current into a train of pulses having an instantaneous frequency proportional to corresponding instantaneous amplitude values of the analog signal, means for counting the pulses in the train during an exposure time interval to obtain an integrated milliampere-second (MAS) value, means for summing a train of pulses having a uniform frequency during an interval of time equivalent to the exposure time interval to obtain an integral value for the exposure time, means for optionally dividing the MAS value by the exposure time value to obtain an average anode current (MA) value during the exposure time interval, and means for displaying numerical equivalents of the values thus obtained.

US Patent:

41374606, Jan 30, 1979

Filed:

Jun 17, 1976

Appl. No.:

5/696977

Inventors:

Thomas W. Fitzsimmons - Bethel CT
Vincent Berluti - West Haven CT
Howard G. Wagner - Stamford CT
Jonathan S. Shapiro - Greenwich CT

Assignee:

The Machlett Laboratories, Inc. - Stamford CT

International Classification:

G21F 504
G21K 104

US Classification:

250511

Abstract:

A radiographic system comprising an X-ray source disposed to direct an X-ray beam through an adjustable shutter aperture in an aligned collimator and onto an image receptor in a holder located at a preselected distance from the source; and automatic means for preventing an X-ray exposure until prescribed operating conditions have been satisfied, the automatic means including a readily interchangeable read-only-memory module for storing the prescribed conditions therein and ascertaining whether or not the prescribed conditions have been met.

US Patent:

39476898, Mar 30, 1976

Filed:

May 6, 1974

Appl. No.:

5/467411

Inventors:

Howard G. Wagner - New Canaan CT

Assignee:

The Machlett Laboratories, Inc. - Stamford CT

International Classification:

G21F 504

US Classification:

250512

Abstract:

A radiographic system comprising a radiation source disposed to direct a beam of radiation through an adjustable aperture in an aligned beam-limiting device and onto an image receptor located at a selected distance from the source, and automatic means for making a unidirectional final adjustment of the aperture to provide the beam with a cross-sectional area which conforms to the size of the image receptor at the selected distance from the source.

US Patent:

40187160, Apr 19, 1977

Filed:

Jun 16, 1975

Appl. No.:

5/587447

Inventors:

Thomas W. Fitzsimmons - Bethel CT
Vincent Berluti - West Haven CT
Howard G. Wagner - Stamford CT
Jonathan S. Shapiro - Greenwich CT

Assignee:

The Machlett Laboratories, Incorporated - Stamford CT

International Classification:

G21F 504
G21K 104

US Classification:

250511

Abstract:

A radiographic system comprising an X-ray source disposed to direct an X-ray beam through an adjustable shutter aperture in an aligned collimator and onto an image receptor in a holder located at a preselected distance from the source; and automatic means for preventing an X-ray exposure until prescribed operating conditions have been satisfied, the automatic means including read-only-memory means for storing the prescribed conditions therein and ascertaining whether or not the prescribed conditions have been met.