Expanded – threaded – driven – headed – tool-deformed – or locked-thr – With means to indicate application of predetermined... – Including gauge means
Patent
1996-02-06
1998-05-05
Meyers, Steven N.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
With means to indicate application of predetermined...
Including gauge means
403307, F16B 3102, F16D 102
Patent
active
057465550
ABSTRACT:
A coupler for connecting two axially aligned, rod-like reinforcing members or structural parts and which permits a visual confirmation that successful coupling of the two structural parts has been made. The coupler is fashioned as a sleeve with two opposed open ends, each open end for receivingly engaging a corresponding inserted end of one of the structural parts. The sleeve includes at least one inspection hole or through-hole disposed medial of the sleeve ends. The sleeve further includes a displaceable inspection element disposed inserted within the through-hole and a stop member for limiting the engagement depth of the structural parts within the respective open ends of the sleeve. The inserted structural parts engage the displaceble inspection element and forcibly cause it to displace outwardly of the through-hole and thereby provide a visual confirmation that the two structural parts have been successfully coupled with a desired engagement depth. The displaceable inspection element preferably consists of flowable material which facilitates displacement outwardly through the inspection hole under subjected to compressive forces. Alternate embodiments disclose internally threaded and swage fit sleeve assemblies provided with two, co-aligned inspection holes. A further alternate embodiment discloses a structural tension connector for single sided coupler installations consisting of a sleeve mated to a wall mountable base plate portion.
REFERENCES:
patent: 1035816 (1912-08-01), Allen
patent: 1326008 (1919-12-01), Tarbox
patent: 1415658 (1922-05-01), Lane
patent: 2577167 (1951-12-01), Vlasis
patent: 2679414 (1954-05-01), Hornschuch
patent: 4017198 (1977-04-01), Mason
patent: 5082406 (1992-01-01), Cosenza
Dayton Superior: Dowel Bar Replacement, 1983 Ed."D-50 DBR Coupler and DBR Setting-Splice Bars", p. 3.
Feix Thomas C.
Meyers Steven N.
Santos Robert G.
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