Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1984-01-20
1985-03-05
Kittle, John E.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
29235, 138122, 174135, 174 84R, F16L 1100
Patent
active
045031053
ABSTRACT:
A hollow tubular core for supporting an elastic tubular cover member in a highly radially stretched condition comprises a cylindrical plastic tube having a plurality of circumferentially spaced, axially extending lugs on the inner wall of the tube and a continuous helical cut in the wall of the tube from the exterior surface thereof severing the tube into a continuous narrow strip with only the lugs connected axially along the length of the tube.
REFERENCES:
patent: 3515798 (1970-06-01), Sievert
patent: 4338970 (1982-08-01), Krackeler et al.
patent: 4389440 (1983-06-01), Keith
Kittle John E.
Minnesota Mining and Manufacturing Company
Qualey Terryl K.
Seidleck James J.
Sell Donald M.
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