Package making – Interrelated or safety controls
Patent
1993-10-29
1995-01-17
Culver, Horace M.
Package making
Interrelated or safety controls
53550, 533749, 533894, B65B 906, B65B 920, B65B 4116, B65B 5128
Patent
active
053816404
ABSTRACT:
An antomatic packing and sealing apparatus, wherein a plastic film drum with plastic film is placed on a first roller shaft and a second roller shaft and between two adjusting sleeve members freely slidably fitted on the second roller shaft, whereby the placement of the plastic film is easy and the position thereof is adjustable. A substantially U-shaped stretching lever is disposed for forcing open the plastic film against the attaching force so as to facilitate the transferring and packing of the plastic film. A blowing tube is diagonally fixed on a frame body under a front conveying belt assembly, whereby an operator is able to blow diagonally inwardly into the plastic film to expand the same permit an article on the front conveying belt assembly to be packed closer to a film-sealing position so as to save material and make the package more impacted. Activating plates are disposed on two sides of the sealing blades, whereby during the conveying process, if the article does not completely pass through the sealing blade or the operator incautiously extends his hand into a position under the sealing blades, before the sealing blades touch the article, the activating plates will first touch the article and be moved upward, so that the sensing plates connected with the activating plates will ascend along therewith and interrupt sensing switches so as to immergently stop the packing and sealing apparatus for ensuring the safety of the operator, reducing loss of the article and protect the packing and sealing apparatus.
REFERENCES:
patent: 3461271 (1969-08-01), Reitzes
patent: 3583888 (1971-06-01), Shanklin
patent: 3886713 (1975-06-01), Mitchell et al.
patent: 4063400 (1977-12-01), Millevoi
patent: 4697401 (1987-10-01), Kessler et al.
patent: 4924659 (1990-05-01), Watanabe
patent: 4939889 (1990-07-01), Watanabe
patent: 5056295 (1991-10-01), Williams
patent: 5131213 (1992-07-01), Shanklin et al.
patent: 5269119 (1993-12-01), Tolson
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