Apparatus for connecting overlapping ends of thermoplastic band

Details Apparatus for connecting overlapping ends of thermoplastic band Apparatus for connecting overlapping ends of thermoplastic band

1985-12-23

1989-10-03

Lesmes, George F.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With stretching or tensioning means

100 33PB, 156530, 156579, 156580, B65B 1332, B32B 3118

Patent

active

048714143

ABSTRACT:
A band or strap of thermoplastic material which has been placed around a package or article being wrapped is put under tension by means of a tensioning device. The connection apparatus for connecting overlapping ends of the thermoplastic band material is placed within the area of the band or strap under tension and is used to connect these overlapping ends together. The connection apparatus welds the overlapping ends of the strap together using friction by rubbing the lowermost end in a transverse direction with repsect to the longitudinal axis of the band or strap against the uppermost strap end by means of a vibrating or oscillating welding jaw. The welding jaw is driven by an internal battery-powered DC-motor. The connection apparatus is especially well suited for use with a separate tensioning device and can be used in lieu of previously used seal clamps or pliers, independent from a connection with an electric power network or a source of compressed air.

REFERENCES:
patent: 3554845 (1971-01-01), Billett
patent: 3799835 (1974-03-01), Gilmore
patent: 4001064 (1977-01-01), Nix
patent: 4227949 (1980-10-01), Wehr
patent: 4305774 (1981-12-01), Wedeking
patent: 4595433 (1986-06-01), Ford
patent: 4605456 (1986-08-01), Annis

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