John F Batter

US Patent:

39998444, Dec 28, 1976

Filed:

May 30, 1975

Appl. No.:

5/582419

Inventors:

John F. Batter - Lincoln MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

G03C 176

US Classification:

352241

Abstract:

A system for exposing, processing and projecting strip film comprising a cassette containing a roll of film connected at its ends to supply and takeup reels and passing therebetween through a film gate for cooperation with a camera and with a film drive and projecting system. The cassette contains processing means, operating in a predetermined sequence determined by means within the cassette, and energized by drive energy supplied externally to sprocket holes on the film and to the takeup and supply reels by the film drive and projection system. An electrical signal generator within the cassette supplies an external signal to select the mode of operation of the film drive and projection system in dependence upon the processed or unprocessed state of the film.

US Patent:

40126366, Mar 15, 1977

Filed:

Sep 8, 1975

Appl. No.:

5/611045

Inventors:

Lawrence W. Engdahl - Foxboro MA
John F. Batter - Rochester NY
Karl J. Stout - Hudson MA

Assignee:

Raytheon Company - Lexington MA

International Classification:

G01T 120

US Classification:

250363S

Abstract:

A scanning system for a gamma camera providing for the overlapping of adjacent scan paths. A collimator mask having tapered edges provides for a graduated reduction in intensity of radiation received by a detector thereof, the reduction in intensity being graduated in a direction normal to the scanning path to provide a blending of images of adjacent scan paths.

US Patent:

39321878, Jan 13, 1976

Filed:

Mar 14, 1973

Appl. No.:

5/341135

Inventors:

John F. Batter - Lincoln MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

G03C 302

US Classification:

96 78

Abstract:

A system for exposing, processing and projecting strip film comprising a cassette containing a roll of film connected at its ends to supply and takeup reels and passing therebetween through a film gate for cooperation with a camera and with a film drive and projection system. The cassette contains processing means, operating in a predetermined sequence determined by means within the cassette, and energized by drive energy supplied externally to sprocket holes on the film and to the takeup and supply reels by the film drive and projection system. An electrical signal generator within the cassette supplies an external signal to select the mode of operation of the film drive and projection system in dependence upon the processed or unprocessed state of the film.