Method and apparatus for locating hole positions on an...

Details Method and apparatus for locating hole positions on an... Method and apparatus for locating hole positions on an...

2005-01-11

2005-01-11

Bennett, G. Bradley (Department: 2859)

Geometrical instruments

Gauge

Template

C033S476000, C033S481000, C033S492000

Reexamination Certificate

active

06839977

ABSTRACT:
A stariway can be constructed by using movable tread/riser supports placed along a stairway stringer and the supports can be moved as a group or individually to accomodate a stairway slope of any desired degree. It is desirable to mark a stringer for the uniform equal spacing of the location for the tread/risers and to establish the pivot positions for mounting the supports on the stringer. The present invention is an apparatus that will permit a user to locate the desired pivot holes equally spaced and aligned along a stringer.

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patent: 5615488 (1997-04-01), Brady
patent: 5727325 (1998-03-01), Mussell
patent: 5806254 (1998-09-01), Bennett
patent: 6088977 (2000-07-01), Lawrence
patent: 6354403 (2002-03-01), Truckner et al.

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