Wooden stairtread
OwnerMin-Ju Chunginventor
Life of this patent
Estimating the term…
Abstract
A wooden stairtread includes an elongate nose member, an elongate tread body, and a tread end member. The nose member is made of higher quality wood and has a connecting end surface and two opposite lateral end surfaces. The tread body has first and second connecting end surfaces, and includes multiple core layers, and corresponding upper and lower surface layers. Each upper and lower surface layer is made of higher quality wood and has top and bottom sides that are flush with corresponding upper and lower edges of the connecting end surface of the nose member. Each core layer includes two lateral end members made of higher quality wood, and a middle core member made of lower quality wood. The tread end member is made of higher quality wood and is connected to the second connecting end surface of the tread body.
Claims20
A wooden stairtread having a length, height and depth, comprising:
- an elongate nose member extending the full length and full height of said stairtread, said nose member being made of higher quality wood, and having a longitudinal front curved surface, a longitudinal connecting end surface opposite to said longitudinal front curved surface, and two opposite lateral end surfaces, said longitudinal connecting end surface having upper and lower longitudinal edges;
- an elongate tread body extending the full length and full height of said stairtread, and having a first longitudinal connecting end surface connected to said longitudinal connecting end surface of said nose member, and a second longitudinal connecting end surface opposite to said first longitudinal connecting end surface, said tread body including
- at least one elongate core layer between said first and second longitudinal connecting end surfaces, and having top and bottom sides,
- at least one upper surface layer secured to said top side of said core layer, and having a top side flush with said upper longitudinal edge of said longitudinal connecting end surface of said nose member, and
- at least one lower surface layer secured to said bottom side of said core layer, and having a bottom side flush with said lower longitudinal edge of said longitudinal connecting end surface of said nose member,
- said core layer including two lateral end members and at least one middle core member between said lateral end members, each of said lateral end members having an end face that is flush with a respective one of said lateral end surfaces of said nose member,
- said lateral end members and said upper and lower surface layers being made of higher quality wood,
- said middle core member being made of lower quality wood;
- and
- a tread end member opposite to said nose member, made of higher quality wood, and connected to said second longitudinal connecting end surface of said tread body.
Dependencies are inferred from the claim text.