Patent application number | Description | Published |
20110226557 | ELEVATOR MACHINE SUPPORT - An exemplary elevator system comprises a machine support ( | 09-22-2011 |
20110233004 | ELEVATOR CAR POSITIONING USING A VIBRATION DAMPER - An exemplary method of controlling elevator car position includes determining that an elevator car requires re-leveling and determining whether a vibration damper is activated. A gain for controlling operation of a motor responsible for moving the elevator car for the re-leveling is adjusted if the vibration damper is activated. | 09-29-2011 |
20110240828 | ELEVATOR SYSTEM AND INSTALLATION METHOD - An exemplary mounting arrangement for an elevator machine comprises a first portion ( | 10-06-2011 |
20110297488 | ELEVATOR SYSTEM DOOR FRAME THAT SUPPORTS GUIDE RAILS - An exemplary elevator door frame includes a sill member and a header member. A plurality of jamb members are generally perpendicular to the sill member and the header member. A plurality of guide rail brackets are supported on at least one of the sill member, the header member or one of the jamb members. The guide rail brackets are configured to receive a portion of a guide rail. | 12-08-2011 |
20120006626 | ELEVATOR SYSTEM INCLUDING MULTIPLE CARS WITHIN A SINGLE HOISTWAY - An elevator system includes first and second elevator cars and counterweights within a hoistway. A first load bearing assembly supports the first elevator car and counterweight and follows a path between a first end supported in a fixed position, at least partially around a first car sheave, at least partially around another sheave separate from the first elevator car and counterweight, at least partially around a first counterweight sheave, and to a second end supported in a fixed position. A second load bearing assembly supports the second elevator car and counterweight and follows a path between a first end supported in a fixed position, at least partially around two second car sheaves, at least partially around another sheave separate from the second elevator car and counterweight, at least partially around a second counterweight sheave to a second end supported in a fixed position. | 01-12-2012 |
20130277152 | FRICTIONAL DAMPER FOR REDUCING ELEVATOR CAR MOVEMENT - An exemplary device for use in an elevator system includes at least one friction member that is selectively moveable into a damping position in which the friction member is useful to damp movement of an elevator car associated with the device. A solenoid actuator has an armature that is situated for vertical movement. The armature moves upward when the solenoid is energized to move the friction member into the damping position. The armature mass urges the armature in a downward vertical direction causing the friction member to move out of the damping position when the solenoid is not energized. | 10-24-2013 |
20140008157 | ELEVATOR BRAKING SYSTEM - An elevator system includes one or more rails fixed in a hoistway and an elevator car configured to move through the hoistway along the one or more rails. The system includes one or more braking systems having one more braking surfaces secured to the elevator car and frictionally engageable with one or more rails of the elevator system. One or more actuators are operably connected to the one or more braking surfaces configured to urge engagement and/or disengagement of the one or more braking surfaces with the rail to stop and/or hold the elevator car during operation of the elevator system. | 01-09-2014 |