Stair System
AssigneeBeckm, LLC
InventorRichard D. Walston
Life of this patent
Estimating the term…
Abstract
A stair system (20; 300) comprises: a first length-adjustable stringer (40A; 308A); a second length-adjustable stringer (40B; 308B); and a plurality of tread assemblies (148; 350) installable to the first and second stringers. The system further includes at least one handrail (268; 302A, 302B). A plurality of balusters (280A, 280B; 360, 362) are attached or attachable to the tread assemblies and handrail. The tread assemblies each have an adjustable tread pitch.
Claims24
A stair system (20;
- 300) for spanning between a lower floor (24) and an upper floor (26), the system comprising:
- a first length-adjustable stringer (40A;
- 308A);
- a second length-adjustable stringer (40B;
- 308B);
- a plurality of tread assemblies (148;
- 350) installable to the first and second stringers and each having an adjustable pitch tread;
- at least one handrail (268;
- 302A, 302B);
- and
- a plurality of balusters (280A, 280B;
- 360, 362) attached to or attachable to the tread assemblies and handrail,
- wherein:
- the stringers are telescoping stringers;
- each stringer has a longitudinal array of first engagement features (120;
- 322);
- each tread assembly has one or more left engagement features (160A;
- 450) and one or more right engagement features (160A-C;
- 450), the left and right engagement features mountable to the first engagement features of a respective left said stringer and a respective right said stringer.
(canceled)
(canceled)
(canceled)
A stair tread assembly (148;
- 350) for mounting to a first stringer and a second stringer, the tread assembly comprising:
- a tread (180;
- 400);
- means (150A, 150B, 160A-160C;
- 430A, 430B, 450) for removably and reinstallably mounting the tread to the first and second stringers;
- and
- means (200;
- 210;
- 420, 452, 454) for adjusting a pitch of the tread.
A method for assembling a stair system comprising sequentially installing a plurality of tread assemblies (148;
- 350) to first and second stringers, each of the tread assemblies being installed by:
- an insertion generally normal to a longitudinal direction of the stringers;
- and
- a locking translation generally parallel to said longitudinal direction.
(canceled)
Dependencies are inferred from the claim text.