Self-tightening traction assembly having tensioning device

Details Self-tightening traction assembly having tensioning device Self-tightening traction assembly having tensioning device

2011-03-08

2011-03-08

Morano, S. Joseph (Department: 3617)

Resilient tires and wheels

Tires, resilient

Anti-skid devices

C152S217000, C242S378000, C242S384700, C024S0680SK, C024S0680TT, C024S909000

Reexamination Certificate

active

07900670

ABSTRACT:
Self-tightening traction assemblies or snow chains having tensioning devices that can be used with snow chains for attachment to a vehicle wheel to provide traction. The preferred tensioning device including a housing having a top including a set of housing teeth, a bottom and at least one aperture; an actuator 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 at least one 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. Preferred embodiments include a bracket that can secure the actuator to the housing and provide strength to the tensioning device. The tensioning devices of the present invention can be utilized in a variety of applications not limited to self-tightening snow chains.

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