Static structures (e.g. – buildings) – Frangible section or means – In dissimilar material member
Patent
1977-09-30
1979-10-16
Perham, Alfred C.
Static structures (e.g., buildings)
Frangible section or means
In dissimilar material member
52100, 52699, 249 35, 249 63, 249177, E04B 138
Patent
active
041708539
ABSTRACT:
This invention relates to a device for forming a pre-set void in a floor, wall or other structural member, to thereby define an essentially integral spatial void or closure therein, which maintains the UL fire rating of the floor or other structural member in which it is positioned, and which may be readily removed, when desired, to define the void, without use of special tools or procedures. The device is useful for defining modular or other openings to receive, for example, insert devices, through which cables, such as power and telephone lines, may be passed from a source, for connection with fixtures, phones and other devices. The device is adapted to be secured to forms, for example so that a material such as cement or other floor, wall or other structural forming materials may be positioned or poured thereon and therearound; the device in such cases may form a preset-sealed part of the structural member, readily available for opening when desired.
REFERENCES:
patent: 1391988 (1921-09-01), Zents
patent: 1954788 (1934-04-01), Chambliss, Jr. et al.
patent: 2234784 (1941-03-01), Stolz
patent: 2249824 (1941-07-01), Hall
patent: 2270286 (1942-01-01), Gerriets
patent: 2684518 (1954-07-01), Whitlock
patent: 2694847 (1954-11-01), Christiansen
patent: 2780936 (1957-02-01), Hillberg
patent: 3265349 (1966-08-01), Hamrick
patent: 3276176 (1966-10-01), Jonsson et al.
Perham Alfred C.
Raceway Components, Inc.
LandOfFree
Insert void forming device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Insert void forming device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Insert void forming device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-800884