1
Churchill Donald, Cartmell James V: Display device containing minute droplets of cholesteric liquid crystals in a substantially continuous polymeric matrix. The National Cash Register Company, August 17, 1971: US3600060 (146 worldwide citation)

This disclosure is directed to articles of manufacture, chiefly display devices, containing minute 'naked' droplets or inclusions of cholesteric liquid crystal material in a substantially continuous polymeric matrix, said liquid crystal material changing color or shade of color not only upon applica ...


2
Christie John B, Robison Glenn W, Runquist Jr Raymond C: Color bar code tag reader with light-emitting diodes. The National Cash Register Company, August 15, 1972: US3684868 (126 worldwide citation)

A color bar code reader used for detecting and reading recorded indicia having different and distinct light reflective characteristics; i.e., being manifested in the form of colored bars. The reader utilizes a photosensor and two light-emitting diodes, each having a particular output wavelength. The ...


3
Hodson Theodore L, Cartmell James V, Churchill Donald, Jones Joe W: Encapsulated cholesteric liquid crystal display device. The National Cash Register Company, June 15, 1971: US3585381 (92 worldwide citation)

The present disclosure is directed to articles of manufacture, e.g., display devices, having an encapsulated liquid-crystal member of enhanced color purity, color contrast and visual resolution due to an overlying essentially transparent top layer having a substantially smooth exterior surface. This ...


4
Moellering Edgar E: Cordless scanning probe. The National Cash Register Company, Cavender J T, Sessler Jr Albert L, Dugas Edward, July 30, 1974: US3826900 (80 worldwide citation)

In the present invention an optical decoding system employs a hand-held, optical probe scanner, for optically reading coded information from labels affixed to pieces of merchandise. The optically read code is converted into electrical energy and transmitted by a radio transmitter located within the ...


5
Albrecht Peter: Circuit for measuring and evaluating optical radiation. The National Cash Register Company, Cavender J T, Sessler Jr Albert L, Dugas Edward, May 28, 1974: US3813540 (74 worldwide citation)

The invention relates to a circuit for optically sensing coded data on a record medium and including a photosensitive transducing element such as a phototransistor. In order to render the circuit independent of background brightness variations, the load impedance of the transducing element includes ...


6
Hayford Donald E, Horger Georg: Disposable diaper with rupturable capsules. The National Cash Register Company, June 22, 1971: US3585998 (71 worldwide citation)

This invention is directed to disposable baby diapers and baby diaper liners, viz., disposable baby diaper components containing encapsulated baby oil.


7
Haney Ralph D, Zachar James E, Drozd Charles J: Digital processor. The National Cash Register Company, November 14, 1972: US3702988 (64 worldwide citation)

A digital processor built entirely of metal-oxide semiconductor devices constructed on integrated circuits by large-scale integration techniques is shown. The processor includes a read-only memory means which provides a series of coded instruction signals in a serial-by-bit manner to a memory buss l ...


8
Cartmell James V, Churchill Donald: Encapsulated liquid crystals. The National Cash Register Company, March 13, 1973: US3720623 (64 worldwide citation)

A mixture of cholesteric liquid crystal material such as cholesteryl nonanoate and nematic liquid crystal material such as methoxybenzilidene-p-n-butylaniline is disclosed. The mixture can be encapsulated and employed in temperature-sensitive visual display devices. The addition of nematic liquid cr ...


9
Brown Jr George T, Clark Donald B, Bayless Robert G: Continuous encapsulation and device therefor. The National Cash Register Company, McKinney E Frank, Shafer Robert J, June 11, 1974: US3816331 (54 worldwide citation)

Continuous encapsulation in a liquid capsule manufacturing vehicle by a process of liquid-liquid phase separation is disclosed. The continuous encapsulation is performed in a capsule manufacturing conduit which has a plurality of material introduction ports at spaced positions and a single material ...


10
Churchill Donald, Cartmell James V: Radiation sensitive display device containing encapsulated cholesteric liquid crystals. The National Cash Register Company, May 18, 1971: US3578844 (53 worldwide citation)

This disclosure is directed to articles of manufacture, chiefly display devices, containing encapsulated cholesteric liquid crystals which change color or shade of color not only upon application of an electric potential but also upon removal of the field. The image produced has a comparable outline ...