Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Reexamination Certificate
2005-10-03
2010-11-30
Ridley, Richard W (Department: 3656)
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
Reexamination Certificate
active
07841251
ABSTRACT:
In a preferred embodiment, an apparatus, including: a first nut half (40) and a second nut half (42) each having internal threads (50, 52) complementary with threads on a screw inserted therein; the first nut half (40) and the second nut half (42) having first and second tapers (60, 62), respectively, defined therearound in adjacent surfaces thereof on proximal portions of the first nut half (40) and the second nut half (42); an annular retaining ring (80, 200, 220) having complementary third (92) and fourth (94) tapers defined therearound, with the first taper (60) engaging the third taper (92) and the second taper (62) engaging the fourth taper (94); and biasing apparatus (110, 180, 266) forcing the annular retaining ring (80, 200, 220) inwardly, thus eliminating backlash.
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Carmody & Torrance LLP
Ridley Richard W
Tritex Corporation
Waits Alan B
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