Closure fasteners – Keepers
Patent
1996-01-02
1997-01-14
Lindsey, Rodney M.
Closure fasteners
Keepers
29234114, 292163, 292DIG15, C05C 108
Patent
active
055931944
ABSTRACT:
A door locating device includes an anchorage hole provided on the concrete or ground. An outer sleeve is anchored into the anchorage hole. This outer sleeve has hollow configuration is provided with outer thread. The bottom of the sleeve is provided with a bottom plate which has a flange. The flange is provided with a plurality of threaded hole. A fixing plate having a threaded hole at the center portion thereof. Both side portions of the plate are provided with through holes. The threaded hole is screwed into the outer thread of the outer sleeve. The immediate sleeve to be incorporated with the outer sleeve. The immediate sleeve is provided with longitudinal slot at its inner wall. The longitudinal slot has an enlarged cut which forms upper and lower positioning edges. A spring is disposed within the bottom of the sleeve. A top press block has a traverse slot. The upper and lower portion of the block has a first and a second posts which have different diameter one another. The interconnection between the first and second posts forms a biasing ring to bias the spring. The first post has a boss at its side wall which can move up and down within the through slots. When the device is assembled, the outer sleeve is inserted into anchorage hole first, then is filled with concrete in such a manner that the threads are filled with concrete.
REFERENCES:
patent: 587131 (1897-07-01), Market
patent: 2338851 (1944-01-01), Heyer
patent: 2558361 (1951-06-01), Johnston
patent: 2845789 (1958-08-01), Kistner
patent: 3178213 (1965-04-01), Nelson
patent: 5081241 (1991-05-01), Baines
patent: 5120093 (1992-06-01), Carney
patent: 5490304 (1996-02-01), Winner, Jr. et al.
Lindsey Rodney M.
Millner Monica E.
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