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RETRACTOR ASSEMBLY

  • US 3,811,715 A
  • Filed: 08/21/1972
  • Issued: 05/21/1974
  • Est. Priority Date: 08/31/1971
  • Status: Expired due to Term
First Claim
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1. A retractor assembly, comprising:

  • a first member and a second member, adjustable connecting means holding said members together for mutual rotation about a common axis, said first member being a plate from which a plurality of spaced resilient arms project, each arm supporting a radially outwardly directed rib adapted resiliently to resist deformation away from an unstressed position, said second member having conically diverging wall means centered on said axis, said wall means having a plurality of outward grooves spaced circumferentially and adapted sequentially to receive said ribs upon mutual rotation of said members, said grooves following meridians of said conically diverging wall means, the members being capable of mutual axial displacement to compensate for wear of the ribs.

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