Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1991-01-28
1992-03-17
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
2641761, 4253791, 425380, B29C 4792
Patent
active
050966472
ABSTRACT:
A carrier strip for holding labels to a support, such as the edge of a shelf, includes a rear wall which can be attached to the support and a transparent front wall which is connected to the rear wall so as to form a pocket between the walls. The carrier strip is made by extruding a plastic composition at relatively high pressure through a die which imcompletely smooths the surface irregularities resulting from the relatively high extrusion pressure. This disrupts the longitudinal striations or dielines which are characteristic of extruded members and which might otherwise cause undesirable reflections when a bar code reader is used to read a bar code printed on a label in the pocket.
REFERENCES:
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patent: 2909810 (1959-10-01), Jensch
patent: 3029474 (1962-04-01), Voigt et al.
patent: 3154461 (1964-10-01), Johnson
patent: 3415796 (1968-12-01), Souder et al.
patent: 3574808 (1971-04-01), Matthews et al.
patent: 3920782 (1975-11-01), Cogswell
Rehau Ag & Co.
Thurlow Jeffery
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