Vandal proof system for securing a frangible facing plate to rigid supporting structure by wedging action and a method therefor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04H-013/00
E06B-005/00
출원번호
UP-0614074
(2003-07-07)
등록번호
US-7788860
(2010-09-27)
발명자
/ 주소
Bartman, Ronald R.
Mabie, Norman R.
인용정보
피인용 횟수 :
6인용 특허 :
39
초록▼
Stone faceplates are secured to supporting structures in columbariums or similar environments by a non-standard star screwdriver which penetrates the exposed face of the faceplate to activate a fastening assembly having a rivet nut and screw which secures the faceplate to the supporting structure, t
Stone faceplates are secured to supporting structures in columbariums or similar environments by a non-standard star screwdriver which penetrates the exposed face of the faceplate to activate a fastening assembly having a rivet nut and screw which secures the faceplate to the supporting structure, the tightening pressure of the rivet nut screw forcing the prongs of a slotted spacer sleeve of the fastening assembly into jamming engagement with a hole in the rear of the faceplate.
대표청구항▼
The invention claimed is: 1. A system for securing a visible facing object to a rigid supporting structure using fastening means, said system including a supporting structure, a visible facing object of stone or similar frangible material having an exterior viewable surface and edges around its per
The invention claimed is: 1. A system for securing a visible facing object to a rigid supporting structure using fastening means, said system including a supporting structure, a visible facing object of stone or similar frangible material having an exterior viewable surface and edges around its periphery, fastening means fixed with respect to the supporting structure for securing the visible facing object to the supporting structure by wedging the fastening means against the facing object, said fastening means being indistinguishable from the area surrounding the fastening means from a distance of about 2-4 feet during daylight conditions, said fastening means further being vandal proof using conventional tools, the fastening means being activateable only by modified conventional tool means, the fastening means including a small access hole in the visible facing object, said access hole being located inwardly from the peripheral edges thereof. 2. The system of claim 1 further characterized in that the visible facing object has a design on the exterior viewable surface thereof, said access hole being located in the design on the exterior viewable surface of the visible facing object, at least a portion of the design on the viewable surface of the visible facing object is linear, the widest dimension of the access hole being the same or substantially the same as that portion of the design within which it is located. 3. The system of claim 1 further characterized in that the fastening means includes screw means having a screw head for securing the visible facing object to the rigid supporting structure, aligning means in the screw head for receiving an actuating tool, said aligning means including a star screwdriver socket and the tool is a star screwdriver. 4. The system of claim 3 further characterized, firstly, in that the star screwdriver socket in the screw head is of a size different from the size required by a conventional star screwdriver socket, and secondly, in that the size of the head of the star screwdriver is different from a conventional star screwdriver head. 5. The system of claim 4 further characterized in that the size of the star screwdriver socket in the screw head and the size of the head of the star screwdriver are mating intermediate conventional star screwdriver sizes. 6. A system for securing a visible facing object to a rigid supporting structure using fastening means whereby, in use, the fastening means is indistinguishable from the area surrounding the fastening means from a distance of about 2-4 feet during daylight conditions and virtually vandal proof, said system including a supporting structure, a visible facing object of stone or similar frangible material, and fastening means fixed with respect to the supporting structure for securing the visible facing object to the supporting structure by wedging the fastening means against the facing object, said fastening means being indistinguishable from the area surrounding the fastening means from a distance of about 2-4 feet during daylight conditions, said fastening means further being virtually vandal proof, the fastening means is accessible through a small access hole in the exterior, viewable surface of the visible facing object extending part way into the body thereof, and further including a large access hole in the interior hidden surface of the visible facing object which is axially concentric with the small access hole and extends into the body of said object from the interior surface thereof until it connects with the small access hole, an opening in the supporting structure of a size suitable to slidably receive the threaded end of a rivet nut, a rivet nut screw having a head received in the larger access hole, a tube surrounding the rivet nut screw and extending between the rivet nut and the base of the large access hole, the size of the large access hole being slightly larger than (a) the diameter of the head of the rivet nut screw and (b) twice the thickness of the wall of the tube, the head of the screw having means aligned with the small access hole to receive a tool for activating the rivet nut, the aligned means in the screw head for receiving an actuating tool is a star screwdriver socket and the tool is a star screwdriver, and further characterized firstly, in that the star screwdriver socket in the screw head is of a size different from the size of a conventional star screwdriver socket of a conventional size, and secondly, in that the size of the head of the star screwdriver is different from a conventional star screwdriver head, the size of the star screwdriver socket in the head of the rivet nut screw and the size of the head of the star screwdriver are different from conventional star screwdriver sizes, the end of the tube which is received in the large access hole is slotted to form prongs which may be expanded outwardly thereby increasing wedging pressure on the wall of the hole upon application of the head of the screw upon the prongs. 7. The system of claim 6 further characterized in that the visible facing object is a faceplate of a columbarium. 8. The system of claim 6 further characterized in that the star screwdriver socket in the head of the rivet nut screw includes a centrally located center pin, and the head of the star screwdriver includes a recess which receives the center pin to thereby place the star screwdriver into operative engagement with the rivet nut screw. 9. A system for securing a visible facing object to a rigid supporting structure using fastening means whereby, in use, the fastening means is indistinguishable from the exterior viewable surface of the facing object surrounding the fastening means from about 2-4 feet during daylight conditions and virtually vandal proof, said system including a supporting structure, a visible facing object of stone or similar frangible material, and fastening means fixed with respect to the supporting structure for securing the visible facing object to the supporting structure by wedging the fastening means against the facing object, said fastening means being indistinguishable from the area surrounding the fastening means from about 2-4 feet during daylight conditions, the fastening means being accessible through a small access hole in the exterior, viewable surface of the visible facing object extending part way into the body thereof, and further including a large access hole in the interior hidden surface of the visible facing object which is axially concentric with the small access hole and extends into the body of said object from the interior surface thereof until it connects with the small access hole, an opening in the supporting structure of a size suitable to slidably receive the threaded end of a rivet nut, a rivet nut screw having a head received in the large access hole, a tube surrounding the rivet nut screw and extending between the rivet nut and the base of the large access hole, the size of the large access hole being slightly larger than (a) the diameter of the head of the rivet nut screw and (b) twice the thickness of the wall of the tube, the head of the screw having means aligned with the small access hole to receive a tool for activating the rivet nut, said fastening means further being virtually vandal proof. 10. In a method of assembling and disassembling a facing object of stone or similar frangible material having an access aperture to a structure located behind the facing object, said method being virtually vandal proof, the steps of providing anchor means which, when activated, becomes fixed to the structure, providing fastening means aligned with the access aperture for assembling and disassembling the facing object to the structure by wedging pressure after the anchor means is fixed to the structure, activating the fastening means initially by a tool to permanently fix the anchor means to the structure and simultaneously fasten the facing object to the structure, and thereafter activating the fastening means by said tool to disassemble the facing object from the structure while the fixed anchor means remains fixed to the structure, said fastening means fixing the facing object to the structure by wedging pressure exerted by the fastening means against the surface of a cavity located within the facing object, and thereafter assembling and disassembling the facing object to the structure any desired number of times by alternately applying and releasing the wedging pressure, all the while the anchor means remains fixed to the structure.
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