A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Electrically Operated Door Strike with Thermally Responsive Element
In one aspect the present invention provides a door strike which prevents the opening of an associated door when the door strike has been heated to an elevated temperature of at least about 1000° F., preferably when the door strike is at higher temperatures such as are present during a fire in a building structure. The door strike includes a thermally responsive element which retards the normal operation of the door strike when it is at an elevated temperature. A further aspect of the invention is a method for controlling the undesired spread of a fire or smoke between adjacent spaces separated by the door wherein a fire or smoke condition exists in at least one of these spaces, via the provision of a door strike having a a thermally responsive element which retards the normal operation of the door strike when it is at an elevated temperature
Electrically Operated Door Strike with Thermally Responsive Element
In one aspect the present invention provides a door strike which prevents the opening of an associated door when the door strike has been heated to an elevated temperature of at least about 1000° F., preferably when the door strike is at higher temperatures such as are present during a fire in a building structure. The door strike includes a thermally responsive element which retards the normal operation of the door strike when it is at an elevated temperature. A further aspect of the invention is a method for controlling the undesired spread of a fire or smoke between adjacent spaces separated by the door wherein a fire or smoke condition exists in at least one of these spaces, via the provision of a door strike having a a thermally responsive element which retards the normal operation of the door strike when it is at an elevated temperature
Electrically Operated Door Strike with Thermally Responsive Element
SCHILDWACHTER FRED H (author) / ORBETA FERDINAND E (author)
2019-07-25
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
,
Schlösser
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