Self-tightening snow chain and methods of use

Details Self-tightening snow chain and methods of use Self-tightening snow chain and methods of use

2011-06-21

2011-06-21

Morano, S. Joseph (Department: 3617)

Resilient tires and wheels

Tires, resilient

Anti-skid devices

C152S217000, C242S384700

Reexamination Certificate

active

07963306

ABSTRACT:
Self-tightening snow chain for attachment to a vehicle wheel to provide traction. The preferred self-tightening snow chain includes a traction cable and a tensioning device including a housing having a top including a set of housing teeth, a bottom and at least one aperture; a lever interconnected to the housing; a ratchet spool within the housing having a set of ratchet teeth that mate with the housing teeth and a channel between upper and under surfaces to receive a cord that is interconnected with the ratchet spool; a tension spring that places a bias on the ratchet spool toward a wind-up direction; and a wave spring. A preferred tensioning device includes a cord sub-unit having two knobs, one on each end, and a grommet encircling the cord. A method of assembling the tensioning device is also disclosed.

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