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US 5,303,456 AGranted
Open spring safety pin
OwnerMichal A. Mussellinventor
Life of this patent
Estimating the term…
Abstract
A safety pin having an axially extending coil type torsion spring, thereby avoiding pinching fabric to which it is attached. Alternative embodiments provide arrangements assuring alignment of the wire sections of the safety pin with the head. In one alternative embodiment, the wire sections of the safety pin bend toward the middle of the spring, and enter the head in parallel orientation. In a second embodiment, the head is angled with respect to the coil spring, and the wire sections form a V relative to one another.
Claims1
A safety pin, comprising in combination:
- support rod means,
- piercing rod means,
- head means,
- and coil spring means,
- said support rod means connecting said head means in spaced relation to said coil spring means,
- said piercing rod means being pivotally fixed to said coil spring means and separably engageable with said head means,
- said coil spring means having an axis and defining arcuate sections therein, each said arcuate section being axially spaced apart from another said arcuate section, wherein each portion of said coil spring means is spaced apart from very other portion thereof,
- said head means includes two substantially parallel sides, defining a major plane therebetween,
- wherein said head means major plane is angled with respect to said coil spring means axis, whereby said support rod means diverges tangentially and perpendicularly from said coil spring means and said piercing rod means diverges from said coil spring means at an angle thereto, and both said support rod means and said piercing rod means are coplanar when retained within said head means, and
- whereby the structural arrangement of said head means being angled with respect to the coil spring means and said piercing rod means and said support rod means occupy the head major plane whereby the damage to a fabric is reduced.
7 more elements
Dependencies are inferred from the claim text.