Patent ID: 9404305
Filing Date: 2016-08-02
CPC Classification: E06C

Claim Text:
1. A platform apparatus positionable on a pitched roof or a set of stairs, the platform apparatus comprising: a deck structure comprising a support deck having a planar upper surface, the support deck held by a pair of deck side rails for supporting a ladder, workers, equipment, or a combination thereof on the planar upper surface of said support deck, said deck structure further comprising at least one contacting surface at a forward end of said deck structure for contacting said pitched roof or said set of stairs, and said pair of deck side rails being configured to extend along a major length of said deck side rails and lock in a plurality of positions; a ladder structure having a plurality of rungs connected between a pair of ladder side rails defining a major ladder length, said pair of ladder side rails configured to extend along said major ladder length and lock in a plurality of discrete extension positions, the ladder structure further having a pair of semicircular base contacting surfaces at a lower end of said ladder structure, said pair of contacting surfaces extending over an arch length configured to contact said pitched roof or said set of stairs, and said ladder structure further comprising respective extension indicia corresponding to and indicating said plurality of discrete extension positions; and at least one hinge element pivotably connecting an upper end of said ladder structure to a rearward end of said deck structure, the at least one hinge element comprising respective angle indicia corresponding to and indicating a plurality of discrete lockable pivot angles in a range of from about 105 degrees to about 150 degrees of said ladder structure with respect to said deck structure, said at least one hinge element configured to pivot and lock into said plurality of discrete lockable pivot angles, wherein said platform apparatus is configured to be locked into a plurality of predetermined combinations respectively defined by the ladder structure being locked at one of said extension indicia as the at least one hinge element is locked at one of said angle indicia, wherein each of said predetermined combinations are respectively configured to place said planar upper surface of said support deck in a horizontal position when each of said contacting surfaces rest upon a roof surface having a pitch of 12 inches down per 12 inches out, a pitch of 10 inches down per 12 inches out, a pitch of 8 inches down per 12 inches out, and a pitch of 14 inches down per 12 inches out.