Abstract:
A sliding cantilevered gates gate panel is carried by posts for sliding movement in the plane of the gate opening with each post having inner and outer parallel post members separated by a central opening within which the gate panel is mounted. The gate panel has a longitudinally extending track member, a plurality of upstanding posts connected to and upstanding from the track member and a top rail connected across top ends of the posts forming together a generally rectangular panel. Each post has support rollers for running along the track and a drive assembly at a post drives a sprocket engaging a chain mounted inside the track member.
Abstract:
An access system includes a transmitter and a receiver for exchange of secure data wherein the system uses an encryption and a decryption algorithm to exchange a secure data packet. The secure data packet may include an unencrypted data packet and an encrypted data packet. The encrypted data packet may include first data encrypted by the encryption algorithm, and data decrypted by the decryption algorithm, wherein the data decrypted by the decryption algorithm includes a combination of a secure signature and second data encrypted by the encryption algorithm.
Abstract:
A retrofit conversion kit for facilitating the conversion of a door operating apparatus conventionally mounted above the door, to a position mounted and anchored underground for operating a swinging door therefrom. The conversion to an anchored underground position is facilitated by incorporating positional adjustment mechanisms covering any or all possible adjustment dimensions.
Abstract:
A drive mechanism is provided for a door operator, comprising a drive member and a driven member. The drive member includes a protrusion, the edges of the protrusion forming first and second driving surfaces which define a free space of at least about 90° there between. The driven member includes a protrusion, the sides of the protrusion form a first and a second driven surface, respectively. The drive member is adapted to be operably connected to between a motor assembly for rotating the drive member and a door closer assembly rotating with the driven member. The drive member and the driven member are disposed for relative rotation in substantially the same plane such that the driven member protrusion moves in the free space defined by the driving surfaces of the drive member protrusion. Rotation of the drive member from a first angular orientation to a second angular orientation in a direction toward an adjacent driven surface causes rotation of the driven member for powered opening of the door from the closed position to the open position. The driven member protrusion moves in the free space without engaging the protrusion surfaces when the door is opened manually from the closed position and allowed to close.
Abstract:
A method for installing a retrofit conversion kit for converting a door operating apparatus from overhead use to underground use and for operating a swinging door while protecting the door apparatus against moisture and dust encroachment within its underground location. A seal arrangement provides this contamination encroachment protection.
Abstract:
Movable partition systems include an elongated drive member with fixed, offset ends extending along a track, a partition that is automatically and manually movable along the track, the partition hanging from a trolley disposed at least partially within the track, a motor carried by the movable partition configured to drive a rotatable drive member engaged with the elongated drive member, and a clutch coupled with the motor configured to engage or disengage the rotatable drive member from the motor. Methods of moving a partition along a track include actuating a motor carried by a movable partition to drive rotation of a drive member while a clutch mechanism is engaged, and manually moving the partition along the track while the clutch mechanism is disengaged. Methods of installing a movable partition system include coupling a trolley to a rotatable drive member and placing the trolley within a channel of a track.
Abstract:
The invention relates to an energy guide chain system comprising an energy guide chain for guiding cables, hoses or the like between a stationary and a movable connection point, an entrainment portion to which the energy guide chain is connected by way of the movable connection point, and a guide channel which has a hollow profile with a passage extending in the longitudinal direction for the entrainment portion, wherein the energy guide chain is guided in the guide passage in the longitudinal direction thereof in the form of two runs which are guided in mutually parallel relationship and which are connected to each other by way of a deflection region, as well as a sliding door system for a vehicle having the energy guide chain system. In order to achieve easy and reliable guidance of cables, hoses or the like in at least two directions, it is proposed that the entrainment portion has a movable arm which projects from the guide channel with a fastening side for connection to an apparatus movable relative to the guide channel, wherein the spacing between the fastening side and the guide channel is variable in a travel component in transverse relationship with the longitudinal direction of the guide channel.
Abstract:
A drive unit for a door includes a guiding device comprising guide rail and a guide element extending in a movement direction of the door. A drive device arranged inside a carriage moves back and forth along the guide rail and is engaged in the guide element. The drive unit is supplied with power via the guide rail and the guide element. Electrical plug connectors are provided on an external power source for the electrical connection of the guide element and the guide rail.
Abstract:
A window operator mountable on the frame of window having a hinged movable sash including a drive assembly for positioning the movable sash and a separately installable drive shaft for operating the drive assembly. The drive assembly includes a drive chain coupled to the movable sash of the window that extends and retracts to position the movable sash. The drive assembly can be mounted to the frame first without the drive shaft. After the window is installed, the drive shaft can be then inserted into the drive assembly and used to extend and retract the drive chain and move the movable sash. The window operator includes a drive shaft retention assembly for receiving and retaining the drive shaft once the drive shaft is inserted into the drive assembly.
Abstract:
The invention is a system for gearless operation of a movable barrier utilizing Lorentz forces, and in particular, a movable barrier operator retrofitted with a gearless motor capable of high torque at very low speeds. Eliminating a gear system in accordance with the present invention lowers maintenance requirements, increases efficiency, and streamlines operation of any movable barrier. By utilizing a motor which produces high-torque at low a speeds a system in accordance with the present invention does away with the need for complicated gears and pulley systems in order to achieve control of movable barriers. The present invention allows manufacturers, distributors and consumers to implement movable barrier systems with much more versatility and efficiency.