Patent ID: 11859435
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A sliding sash assembly for use as a door or window, comprising:
a) an assembly frame defining a frame opening;
b) a pair of sashes mounted in the frame opening, the pair of sashes including a first sash and a second sash slidable relative to each other along an opening axis between a closed position, in which the pair of sashes are extended relative to each other along the opening axis to cover the frame opening, and an open position, in which the pair of sashes are retracted relative to each other along the opening axis for uncovering a first extent of the frame opening, the second sash sweeping a travel path relative to the first sash when the sashes are moved from the closed position to the open position; and
c) at least one stop device including a housing fixed to the first sash and a pair of depressible stop members movably mounted in the housing, the stop members spaced apart from each other along the opening axis, each stop member selectively movable independent of the other stop member between a retracted position, in which the stop member is retracted into the housing clear of the travel path of the second sash, and an advanced position in which the stop member projects from the housing at a corresponding stop position along the opening axis into the travel path of the second sash for engagement with the second sash to restrict movement of the pair of sashes relative to each other toward the open position.