Patent ID: 7516575

Claim:
A rooftop hatch and safety railing assembly, comprising: a rooftop hatch defining an opening and having an upwardly projecting generally rectangular curb having an upstanding wall portion having generally parallel upstanding curb wall members; a railing portion having a plurality of upstanding posts and side braces interconnecting the posts and defining a safety railing; a base portion being mounted to said safety railing portion and comprising a pair of elongate first side members each having an elongate clamping surface disposed adjacent one of said generally parallel upstanding curb wall members of said upwardly projecting generally rectangular curb of said rooftop hatch, said elongate first side members each having a pair of end portions, said base portion and said safety railing defining a safety railing assembly; a pair of elongate clamp force applying second side members each defining opposed end portions having clamp force applying connection with respective end portions of said pair of first side members and being adjustable for applying clamping force to said elongate first side members and urging said elongate clamping surfaces of said first side members into immovable clamping engagement with said generally parallel upstanding curb wall members of said upwardly projecting curb of said rooftop hatch and supporting said safety railing assembly solely by clamping engagement with said generally parallel upstanding curb wall members of said upwardly projecting curb; an outwardly projecting lip being defined by said upwardly projecting generally rectangular curb and having a downwardly facing shoulder located on said upstanding wall portion; and said elongate clamping surface of each of said first side members each being an elongate abutting surface disposed in abutting relation with an upstanding curb wall portion of said upwardly projecting generally rectangular curb of said rooftop hatch and defining a locking surface disposed in supporting engagement with said outwardly projecting lip of said upwardly projecting generally rectangular curb of said rooftop hatch.