Britt Thomas M: Package and tray for tubes or the like. Owens Illinois, June 29, 1971: US3589511 (58 worldwide citation)

The invention discloses a package for use with frangible objects and a tray which when empty may be readily nested within a like tray and when filled the spaced-apart objects are positioned in holding means formed by a plurality of channels extending transversely to the length of the tray and which ...

Britt Thomas M: Tray package for tubes. Owens Illinois, December 26, 1972: US3707227 (24 worldwide citation)

A tray formed from a sheet of thermoplastic material is provided for holding culture tubes, test tubes, or like articles. The tray is provided with a contoured bottom having side and end wall portions extending upwardly therefrom. A cover member is integrally connected from the top edge of one of th ...

Britt Thomas M, Vanden Basch Peter: Precision control of plastic sheet manufacture. Owens Illinois, July 13, 1971: US3591895 (3 worldwide citation)

A system for making plastic sheets including a tube extruder and slitting means wherein the extruder is provided with cooling means and air supply means for supporting the extruded tube relative to the appropriate guiding surfaces.