Brushing – scrubbing – and general cleaning
Patent
1977-04-27
1979-06-12
Holko, Thomas J.
Brushing, scrubbing, and general cleaning
85 1P, 85 72, 151 4173, F16B 1900
Patent
active
041576756
ABSTRACT:
A reverse taper fastener including a fastner pin portion having a head and an elongate bearing section adapted to extend through holes in the work pieces where the bearing section tapers inwardly from the leading end toward the trailing end of the bearing section; and a pintail portion integrally connected to the leading end of the fastener pin portion through a breakneck section with an expansion section for expanding the holes from a diameter smaller than the bearing section to a diameter larger than same for installing the fastener where the breakneck groove around the breakneck section has been either closed or filled to form a continuous surface between the bearing section and expansion section. The disclosure also comprehends the method of manufacturing the fastener.
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patent: 3941027 (1976-03-01), Gibson et al.
patent: 3951561 (1976-04-01), Speakman
Holko Thomas J.
Powell B. J.
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