Abstract:
The present invention relates to a synchronizing ring comprising a tapered internal bore provided with sharp axial teeth. The synchronizing ring comprises axial grooves distributed on the tapered internal bore, each groove extending over a surface corresponding to at least three consecutive axial teeth, two successive grooves being separated by at least ten axial teeth.
Abstract:
The invention comprises an elevator electrical component having a front plate that has no visible fasteners, the component being removable by a key. The elevator component has a housing attached to a face plate, a number of flexible arms attached to and integral with the housing, the arm(s) causing the housing to interfere with an opening in the elevator or the landing upon insertion or removal of the housing from the opening, the arm being movable in two directions to avoid interference with the opening upon insertion or removal of the housing from the opening, a visually inconspicuous accessway in the face plate for allowing access to the arm, and a key for extending through the accessway and simultaneously moving the arm or arms in both directions to allow the component to be removed from the opening without interference by the arm(s). The component may include a shaped projection that causes the housing to be specially manipulated to remove the housing from the opening even after usage of the key. The component may also include an obstruction to prevent the arm or arms from not interfering with the opening unless the key is used.
Abstract:
The sensitivity of a magnetic detector (17) sensing flux (23) from a source (14) is improved by isolating the magnetic detector (17) from flux (24a) of an adjacent source (13a) by means of a magnetic trap (33).
Abstract:
The present invention relates to a synchronizing ring comprising a tapered internal bore provided with sharp axial teeth. The synchronizing ring comprises axial grooves distributed on the tapered internal bore, each groove extending over a surface corresponding to at least three consecutive axial teeth, two successive grooves being separated by at least ten axial teeth.
Abstract:
An apparatus for effecting non-contact linear door displacement comprising a tubular motor formed of a stator (1) formed from a plurality of magnets (21) arranged along a linear axis (15), and at least one thrust block (3) each formed of at least one electrically conductive coil encircling the stator (1) at a distance sufficient to facilitate electro-mechanical interaction between the plurality of coils and the stator (1), at least one door (5) attached to at least one of the plurality of thrust blocks (3) via a hanger (9) and the at least one door (5) capable of a movement in the direction of the linear axis (15), a rolling component (11) to enable movement of the hanger (9) in the direction of the linear axis (15), and a control mechanism (70) for sensing the position of each of the at least one door (5) and issuing an electrical control signal to each of the plurality of thrust blocks (3) so as to affect the movement of the at least one door (5).
Abstract:
Ball screw assembly comprising a screw (2) provided with an outer thread (3); a nut (4) provided with an inner thread (5); a series (6) of balls (7) able to circulate along a circulating path (10) between the screw and the nut, along which the balls are engaged in the threads thereof; and recirculating means (8) defining a recirculating channel (9) to carry balls from one end to the other end of said circulating path (10); The recirculating channel (9) comprising a return channel (14) provided on the nut and, between the ends of this return channel and the corresponding ends of said circulating path, deflecting channels (27, 28) which are defined respectively between surfaces (25) of deflecting elements (20, 21) engaged in respective holes (11, 12) of the nut (4) and local zones (26) of surfaces (16) of these respective holes.
Abstract:
A local area network includes one or more wireless access points for receiving and sending voice and data messages from and to a mobile wireless communications device and a router to manage the delivery of messages to either a DHCP server, a VPN server, or the wireless access points. The DHCP server provides configuration parameters specific to a client requesting DHCP information. The VPN server operates, in conjunction with wireless communications devices to perform key exchange, mode configuration, client authentication, and to maintain the security of a VPN session. The wireless communications device includes a hybrid VPN client that operates, in conjunction with the LAN, to initiate the establishment of a VPN tunnel between the wireless communications device and the VPN server. The hybrid VPN client includes both software and hardware modules that operate together to limit communications latency during the establishment and maintenance of a VPN session.
Abstract:
An apparatus for effecting non-contact linear door displacement comprising a tubular motor formed of a stator (1) formed from a plurality of magnets (21) arranged along a linear axis (15), and at least one thrust block (3) each formed of at least one electrically conductive coil encircling the stator (1) at a distance sufficient to facilitate electro-mechanical interaction between the plurality of coils and the stator (1), at least one door (5) attached to at least one of the plurality of thrust blocks (3) via a hanger (9) and the at least one door (5) capable of a movement in the direction of the linear axis (15), a rolling component (11) to enable movement of the hanger (9) in the direction of the linear axis (15), and a control mechanism (70) for sensing the position of each of the at least one door (5) and issuing an electrical control signal to each of the plurality of thrust blocks (3) so as to affect the movement of the at least one door (5).
Abstract:
An apparatus for effecting non-contact linear door displacement comprising a tubular motor formed of a stator (1) formed from a plurality of magnets (21) arranged along a linear axis (15), and at least one thrust block (3) each formed of at least one electrically conductive coil encircling the stator (1) at a distance sufficient to facilitate electro-mechanical interaction between the plurality of coils and the stator (1), at least one door (5) attached to at least one of the plurality of thrust blocks (3) via a hanger (9) and the at least one door (5) capable of a movement in the direction of the linear axis (15), a rolling component (11) to enable movement of the hanger (9) in the direction of the linear axis (15), and a control mechanism (70) for sensing the position of each of the at least one door (5) and issuing an electrical control signal to each of the plurality of thrust blocks (3) so as to affect the movement of the at least one door (5).
Abstract:
An elevator system includes an elevator cab having doors that are movable between open and closed positions. A rail is mounted to the cab. At least one roller defines an axis of rotation and is mounted for movement along the rail. The roller is operably connected to the doors to move the doors between open and closed positions. A motor assembly is mounted for movement with the roller along the rail and has an output for providing a rotational driving force to the roller. In one embodiment, the motor drives a planetary drive assembly which drives the roller along the rail and in another embodiment the motor drives a worm gear assembly which drives the roller. Alternatively, a tree-axis torque motor generates a magnetic field that is non-perpendicular to the axis of rotation of the roller, which causes the roller to be driven along the rail.