Folding blade

Details Folding blade Folding blade

2008-07-08

2008-07-08

Truong, Thanh K (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Tool or tool support

Rotary

C493S263000, C493S457000

Reexamination Certificate

active

11561911

ABSTRACT:
Folding blade (1) that is particularly applicable to devices for the closure of flexible tubular packaging, taking the form of a flat plate, provided on one of its lateral edges with a tab (5) in the form of a hook that is adapted to hold the packaging, of the type that is disposed opposite and perpendicular to a lateral portion of the packaging and attached to an axis of rotation (3) that transmits thereto a reciprocating rotational movement around the axis. This folding blade (1) comprises a main body (2) that can be attached to the axis of rotation; an end portion (4) provided with a tab (5) that is joined by articulation to the main body by its free end opposite the axis of rotation (3); and an elastic means (6) that exerts a permanent pulling force on said end portion, thus maintaining it in the initial position, folded over the main body of the blade.

REFERENCES:
patent: 2925699 (1960-02-01), Ozor
patent: 3167897 (1965-02-01), Hopkins et al.
patent: 4070853 (1978-01-01), Sanders
patent: 4079662 (1978-03-01), Puccetti et al.
patent: 4579154 (1986-04-01), Muller
patent: 4589247 (1986-05-01), Tsuruta et al.
patent: 5048270 (1991-09-01), McMahon

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