Reusable torque limiting fastening device

Details Reusable torque limiting fastening device Reusable torque limiting fastening device

1975-09-29

1977-02-08

Frazier, Roy D.

Brushing, scrubbing, and general cleaning

151 14DW, 151 37, F16B 3102

Patent

active

040066614

ABSTRACT:
A reusable torque limiting device producing tactile feedback for a desired preset bolt tensile load comprises a body, provided with an internal bore threaded therethrough so as to be received over a threaded bolt or similar fastening element. One face of the body is provided with a recessed area therein and an angled counter-bore adjacent and concentric with the center thereof. One or more angular, beveled or concave members are disposed within a recess in the body with the concave portion suitably oriented relative to the recess. The work piece engaging face of the body is, or may be provided with, a roughened surface for example radial slots, notches, teeth or grooves so as to gall or abraid the confronting face of the work piece as the device achieves the predetermined bolt tensile load that is desired by allowing the torque rate increase to be easily sensed at which time the operator should stop turning the nut. (This device makes use of the operator tactile senses to achieve accurate tensile load in the bolts.) Additionally, an indication that the annular beveled members are located correctly within the recess in the threaded body of the device is provided by the slots or grooves.

REFERENCES:
patent: 1435216 (1922-11-01), Davis et al.
patent: 1611210 (1926-12-01), Liddell
patent: 1945005 (1934-01-01), Vacher
patent: 2350647 (1944-06-01), Sosnick
patent: 2766799 (1956-10-01), Poupitch
patent: 2815059 (1957-12-01), Fiddler
patent: 3030996 (1962-04-01), Doerr
patent: 3078899 (1963-02-01), MacLean et al.
patent: 3144803 (1964-08-01), Briles
patent: 3153974 (1964-10-01), Canning
patent: 3474701 (1969-10-01), Setzler

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