1
Parker Robert: Reusable bottle thermometer. Robert Parker Research, February 11, 1975: US3864976 (75 worldwide citation)

A laminated digital thermometer is provided for determining the temperature of a fluid in a container. A digital thermometer strip is employed having a thin dimensionally stable plastic film upon which is printed a dark mask, leaving alpha-numeric symbols transparent. Coated onto the transparent are ...


2
Frederick Davis: Cholesteric liquid crystal water base ink and laminates formed therefrom. Robert Parker Research, Townsend and Townsend, May 10, 1977: US04022706 (60 worldwide citation)

Thin stable, substantially uniform, liquid crystal containing films are provided by coating a liquid crystal containing ink onto an inert substrate, which may be transparent, or opaque, optionally pigmented, particularly black pigment. The liquid crystal ink comprises an oil in water latex, where th ...


3
Parker Robert: Digital thermometer and method of manufacture. Robert Parker Research, Townsend and Townsend, January 21, 1975: US3861213 (20 worldwide citation)

A non-breakable digital thermometer and a method for its manufacture are provided. The thermometer comprises a plastic strip, either flexible or rigid, or microencapsulated temperature responsive liquid crystal material in a lateral array of numerical indicia, each index having associated with it li ...


4
Parker Robert: Fin cooled temperature sensor employing liquid crystals. Robert Parker Research, August 6, 1974: US3827301 (20 worldwide citation)

An apparatus is provided for indicating the temperature of a surface or heat source by employing a single liquid crystal composition which is at varying distances from the surface. A first means is provided for heat exchanging with said surface. A second means is provided for heat exchanging with th ...