Package making – Closing packages and filled receptacles – Separate closure applying
Patent
1974-12-04
1976-04-20
McGehee, Travis S.
Package making
Closing packages and filled receptacles
Separate closure applying
53360, 53368, B65B 728, B67B 302
Patent
active
039509222
ABSTRACT:
In a sealing head for vacuum sealing a cap-shaped cover of relatively soft inelastic permanently deformable material with a sealing insert to a container of at least substantially rigid material provided with a beading on its outer face in the vicinity of its aperture, which sealing head has a flange plate, a head plate carrying a ring of pressure fingers projecting downwards and elastically yielding in a radial direction, which pressure fingers are surrounded by a rubber sleeve and also a steel sleeve placed over the latter, and a pressure plate carried by an axial shaft, held by the pressure fingers and displaceable inside these together with the shaft against the action of a spring, the improvement comprising the head plate together with the pressure fingers carried by it being displaceable relative to the flange plate by a limited amount on the shaft against the action of resilient means and enclosed by a rigid external shell connected to the flange plate and forming underneath the free end of the pressure fingers an opening for the cap-shaped covers which matches the external diameter thereof and the length of which corresponds substantially to the height of the covers.
REFERENCES:
patent: 1873113 (1932-08-01), Darling
patent: 2541601 (1951-02-01), Nelson
patent: 2670118 (1954-02-01), Young
patent: 3122868 (1964-03-01), Nofer et al.
patent: 3427786 (1969-02-01), Nofer
patent: 3585787 (1971-06-01), Podesta
patent: 3672121 (1972-06-01), Kawaminani
Culver Horace M.
McGehee Travis S.
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