公开(公告)号：US3597809A

公开(公告)日：1971-08-10

申请号：US3597809D

申请日：1969-08-11

Applicant: RIXSON INC

Inventor： CRANE BURKE J

IPC: A62C2/14 ,  A62C2/24 ,  E05F1/00 ,  A44B17/00

CPC classification number: E05F1/006 ,  A62C2/14 ,  A62C2/247 ,  E05Y2201/41 ,  E05Y2201/50 ,  Y10S24/37 ,  Y10T16/22 ,  Y10T24/4511 ,  Y10T24/49

Abstract: A separating link and operator particularly adapted as a substitute for the fusible links employed in prior art closure control systems. A first embodiment of the separating link has two link sections whose joinder is controlled by a pull wire latch. One section is a cam link section having an integral ball cam. The second section is a socket link section formed with a socket for receiving the cam in mating relationship. A pair of locks couple the link sections together. The latching engagement of one lock is dependent upon the latching engagement of the other or operating lock. The pull wire latch is connected to a magnetizable armature which reciprocates within a solenoid. Upon deenergization of the solenoid, the pull wire latch is removed from the operating lock thus disengaging this lock. The ball cam then partially separates the two links sections with a resultant disengagement of the dependent lock. Accordingly, the links sections are fully separated in response to external forces applied by a closure, for example. A modification is incorporated within a second embodiment by which each link is a sandwich of elements including a fusible layer. This embodiment thus fully separates in response to excessive heat which causes melting of one or both of the fusible layers, or, alternatively, in response to the removal of the pull wire latch.

公开(公告)号：US3561036A

公开(公告)日：1971-02-09

申请号：US3561036D

申请日：1968-06-24

Applicant: RIXSON INC

Inventor： CRANE BURKE J

IPC: E05F3/22

CPC classification number: E05F3/221 ,  E05Y2900/132 ,  Y10T16/27 ,  Y10T16/61 ,  Y10T403/60

Abstract: THE APPARATUS CONTROLS AXIAL MOVEMENT OF A SHAFT LONGITUDINALLY OF ITS OWN AXIS, WHICH SHAFT IS ARRANGED FOR AXIAL MOVEMENT IN RESPONSE, RESPECTIVELY, TO OPENING AND CLOSING MOVEMENT OF A DOOR UPON A FIXED HINGE AXIS. A BOSS HAVING A CAMMING SURFACE IS MOUNTED IN A FIXED AXIAL POSITION ALONG THE SHAFT. OWING TO A HOLDING ARRANGEMENT OF AN EXPANDABLE GROUP OR RING OF BALLS ENCIRCLING THE SHAFT, WHICH BALLS ARE ACTED UPON BY RESILIENT MEANS, AN AXIAL PULLING FORCE ON THE SHAFT IS REQUIRED TO PERMIT AXIAL MOVEMENT OF ITS CAMMING BOSS THROUGH THE RING OF BALLS WHEN THE SHAFT MOVES IN A DOOR CLOSING DIRECTION. BECAUSE OF THE CONFIGURATION OF THE BOSS OR CAM, A LESSER AXIAL PULLING FORCE ON THE SHAFT SUFFICES TO PERMIT AXIAL MOVEMENT OF THE CAM THROUGH THE RING OF BALLS, WHEN THE SHAFT IS MOVING IN A DOOR OPENING DIRECTION.

公开(公告)号：US3559232A

公开(公告)日：1971-02-02

申请号：US3559232D

申请日：1969-03-21

Applicant: RIXSON INC

Inventor： CRANE BURKE J

IPC: E05D11/00 ,  E05F3/22

CPC classification number: E05D11/081 ,  E05F3/16 ,  E05F15/72 ,  E05Y2201/49 ,  E05Y2900/132 ,  Y10T16/304 ,  Y10T16/54034

Abstract: AN ELECTRICALLY ACTUATED DOOR HOLDER APPLIED TO A HINGED DOOR HAVING A CLOSER. THE DOOR HOLDER MAY BE MANUALLY OVERRIDDEN AND ALSO AUTOMATICALLY RELEASED. FUNCTIONALLY, THE DOOR IS HELD OPEN AT ANY DESIRED ANGULAR POSITION WHEN A SOLENOID IS ENERGIZED TO CAUSE A HELICAL SPRING TORQUE CLUTCH TO LOCK IN ENGAGEMENT TWO RELATIVELY ROTATABLE CLUTCH SHAFTS ENVELOPED BY THE SPRING. EACH CLUTCH SHAFT IS MECHANICALLY COUPLED TO A DIFFERENT HINGE LEAF. IN THE DOOR OPENING DIRECTION, THE SPRING IS UNWOUND RELATIVE THE CLUTCH SHAFTS TO PERMIT MANUAL ENLARGEMENT OF THE DOOR OPENING. A SECOND CONE OR TORQUE LIMITING CLUTCH IS MECHANICALLY CONNECTED IN SERIES WITH THE HELICAL SPRING CLUTCH TO ENABLE MANUAL CLOSING OF THE DOOR WHEN SUFFICIENT DOOR CLOSING TORQUE IS APPLIED TO DISENGAGE THE CONE CLUTCH, EVEN THOUGH THIS CLOSING TORQUE IS INSUFFICIENT TO DISENGAGE THE HELICAL SPRING CLUTCH IN THE DOOR CLOSING DIRECTION. DEENERGIZATION OF THE SOLENOID BY THE MANUAL OPERATION OF A SWITCH, OR BY AN AUTOMATIC FIRE DETECTOR, FOR EXAMPLE, DISENGAGES THE HELICAL CLUTCH AND PERMITS CLOSER TO CLOSE THE DOOR AUTOMATICALLY.

公开(公告)号：US3533652A

公开(公告)日：1970-10-13

申请号：US3533652D

申请日：1967-08-14

Applicant: RIXSON INC

Inventor： CRANE BURKE J ,  PASEK FRANK S

IPC: E05C17/56 ,  H01F7/20

CPC classification number: E05C17/56 ,  Y10T292/11