Needle assembly

Details Needle assembly Needle assembly

1988-09-06

1989-07-04

Yost, Frank T.

Envelopes, wrappers, and paperboard boxes

File folder or file envelope

Hanging type

227 95, B65C 700

Patent

active

048443182

ABSTRACT:
The needle assembly is removably mounted in an attacher for dispensing tag fasteners of the type having a T-bar connected to a thin flexible filament. The base and shank of the needle include a channel along which the T-bar is moved by the push rod of the attacher and a slit through which the filament extends. A recess, preferably in the form of a slot, is provided in the wall of the shank, extending along the channel, at a circumferential position substantially perpendicular to the plane intersecting the shank and passing through the slit. The slot provides clearance for the T-bar to release from the push rod if the previously severed connecting element has become deformed by being wedged between the push rod and the channel wall.

REFERENCES:
patent: 3103666 (1963-09-01), Bone
patent: 3733657 (1973-05-01), Lankton
patent: 4273279 (1981-06-01), Kunreuther
patent: 4288017 (1981-09-01), Russell
patent: 4333596 (1982-06-01), Kunreuther
patent: 4611740 (1986-09-01), Kunreuther

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