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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8087495 | Safety device for stairlifts The invention describes an over-speed governor (21) for a stairlift (10) which not only triggers upon the carriage (12) exceeding a pre-determined speed, but also triggers in the event the chair (11) departs from the horizontal by more th... | 01/03/2012 |
| 7395900 | Portable wheelchair lift Systems and methods for lifting a wheelchair in non-residential indoor facilities. Guide rails extend from a wheeled-base and include a bearing and transmission system for raising and lowering a platform on which a wheelchair occupant travels. The bearing system is ... | 07/08/2008 |
| 7225899 | Stair lift device A stair lift for lifting and lowering at least one person on a rail on a stairway. There is a carriage mountable to the rail, the carriage having a track engaging drive, and a motor to power the drive, the powered drive causing the carriage to move along the rail. T... | 06/05/2007 |
| 7185741 | System with moving zero step for stairs The present invention discloses an electromechanical traversing step system for transporting elderly users 12, infirm and others between floors of a building. A single moveable step 14 ascends or descends on a set of tracks 16 secured to the wal... | 03/06/2007 |
| 7156208 | Stairlift A stair lift includes a lift assembly arranged to be driven along a rail. The lift assembly includes a chassis supporting a load bearing member such as a seat. The chassis is formed by a main member on which are mounted a drive assembly and a levelling assembly for ... | 01/02/2007 |
| 7103935 | Marine gangway to enable handicapped users to move between floating and fixed landings and related methods A marine gangway to enable handicapped users to move between floating and fixed landings may include a gangway ramp extending between the floating and fixed landings, and at least one rail carried by the gangway ramp. The marine gangway may further include a drive u... | 09/12/2006 |
| 6679353 | Stair-climbing chair system A stair-climbing system includes a guide rail laid along stairs, a chair slidably mounted on the rail, and a lifter for moving the chair along the rail. The chair is provided with a switch for activating the lifter, and a sensor for detecting that a perso... | 01/20/2004 |
| 6659230 | Safety brake for stairlifts The present invention relates to an overspeed governor for a stairlift and is characterised in that it can operate in two opposite directions. This means that the same device can be fitted to stairlifts regardless of whether the stairlift installation is ... | 12/09/2003 |
| 5967265 | Self-leveling inclined lift device An inclined lift device for transporting an individual passenger includes a rail, a carriage adapted for being movable along the rail, a drive mechanism coupled to the carriage for moving the carriage along the rail, and a support secured to the carriage ... | 10/19/1999 |
| 5476155 | Stairway lift A stairway lift is provided on the treads of a stairway along a sidewall. A guide of the lift is provided on the treads along the sidewall so that a space is formed between the sidewall and the guide. The guide has a first side that faces the sidewall, a ... | 12/19/1995 |
| 5052521 | Stairway wheelchair lift A stairway wheelchair lift includes a stationary motor drive unit, a rail assembly extending along the stairway and a mobile platform movable along the rail. A flexible drive member, such as a chain or cable, within the rail assembly, is driven by the mot... | 10/01/1991 |
| 4046226 | Elevator system for transporting wheelchair patients An elevator platform rides on parallel tracks which may be adapted for vertical or inclined conveyance. Each track is slotted along its length, through which slot the platform extends and is connected to a trolley driven by a continuous chain. Each track ... | 09/06/1977 |
