US PATENT SUBCLASS 411 / 47
.~.~.~ Bridge-type retainer

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

15  DF  HAVING SEPARATE EXPANDER MEANS {13}
44  DF  .~ Including sleeve and distinct tapered expander (e.g., anchor bolt type) {9}
45  DF  .~.~ And means to captively retain expander {3}
47.~.~.~ Bridge-type retainer

DEFINITION

Classification: 411/47

Bridge-type retainer:

(under subclass 45) Subject matter wherein the means for maintaining the expander in assembled relationship comprises a section of material spanning an open end on the holding device or anchor.