| 摘要 |
An automatic threshold seal for a door having a pivoted structure for bearing a compressible seal disposed within a housing and comprising apertured control members affixed within said housing and to the upper surface of said pivoting structure through which a spring rod is installed in such fashion that the apertured control member affixed to said pivoting structure automatically operates the seal as an end of the spring rod projecting through the hinged edge of the housing is activated as the door opens and shuts.
|
