Method and apparatus for production of precision precast concrete flights of stairs

(10) US 2017/0239838 Al

(22) 19.02.2016

(43) 24.08.2017

(57) An apparatus and method for precision forming a precast concrete flight of stairs is disclosed and where precision cut form components provide plural tread supports, plural side­boards, plural tread/riser combinations and a center tread support that upon assembly, the form components, automati­cally square and align treads and risers with upper and lower landings for installation to provide access between vertically spaced apart floors of a structure.

(71) Richard J. Eggleston, II, Asotin, WA

Related articles:

Issue 2018-01

System for connecting a precast column to a precast beam and method therefor

(10) WO 2017/187452 Al (22) 26.04.2017 (43) 02.11.2017 (57) Disclosed are a system and method for connecting a precast column to a precast beam and method therefor. The system provides precast moment...

Issue 2017-10

Precast concrete pit

(10) US 2017/0233230 A1 (22) 24.01.2017 (43) 17.08.2017 (71) Vehicle Service Group, LLC, Madison, IN (US) (57) A pit for containing a vehicle lifting apparatus is constructed from a plurality of...

Issue 2019-03

Precast concrete panel and method

(10) WO 2019/006123 A1 (22) 28.06.2018 (43) 03.01.2019 (57) A precast concrete panel and method for forming the panel are disclosed. A method of forming the panel to be used as a floor, wall, or roof...

Issue 2018-10

Method and apparatus for forming a formwork for a concrete slab

(10) US 2018/0245358 Al (22) 27.04.2018 (43) 30.08.2018 (57) A method and apparatus for forming a formwork for a ribbed or waffle concrete slab is provided. The apparatus includes a rectangular block...

Issue 2017-11

Prefabricated concrete wall structures

(10) US 2017/0167137 Al (22) 14.12.2016 (43) 15.06.2017 (57) A method for forming insulated concrete wall panels includes the step of positioning a stud wall frame in a casting bed, positioning a...