Parallelogram tool for locating stairway and stair landing raili

Geometrical instruments – Straightedge type – Plural straightedges – relatively moveable

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

33452, 33526, 33534, G01B 2122, B43L 710

Patent

active

061193569

ABSTRACT:
Embodiments of a stairway or walkway handrail construction tool are shown and described, each embodiment comprising a frame of four outer members. The members are pivotally joined at or near each end and can thus be moved to form a square or rectangle and variously-angled parallelograms. Whether used on sloping stairs or flat floors, the top and bottom members of the tool will be parallel to each other and to the corresponding stair slope or floor. Thus, the invention may be placed temporarily in the subject location, it may be adjusted up or down according to taste or other criteria to chose a particular configuration for the prospective rail, and then the inventive device may be used to mark, align, plan, and/or visualize the layout of the railing or other feature for its construction. The preferred tool may be fully collapsed to a nearly-flat configuration, to make it very portable and amenable to transport within a case such as a carpenter's level case.

REFERENCES:
patent: 669549 (1901-03-01), Roche
patent: 785756 (1905-03-01), Nutz
patent: 1559386 (1925-10-01), Valentine
patent: 1919551 (1933-07-01), Griffin
patent: 3788608 (1974-01-01), Raymond et al.
patent: 4138094 (1979-02-01), Thir
patent: 4397090 (1983-08-01), Nicyper
patent: 4527341 (1985-07-01), Schon
patent: 4601108 (1986-07-01), Swanson
patent: 4813149 (1989-03-01), Herkimer
patent: 5461798 (1995-10-01), Ribeiro
patent: 5527016 (1996-06-01), Wilkerson, Jr.
patent: 5713135 (1998-02-01), Acopulos
patent: 5732474 (1998-03-01), Cannon

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Parallelogram tool for locating stairway and stair landing raili does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Parallelogram tool for locating stairway and stair landing raili, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parallelogram tool for locating stairway and stair landing raili will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1059784

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.