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| Number | Title | Issue Date |
| 7988157 | Wheelchair stair assist apparatus An apparatus is disclosed for use on standard or customized wheelchairs for moving the wheelchair and wheelchair occupant up or down a stairway or stairway-like structure (e.g., a curb) with greater confidence and stability to the occupant of the wheelchair and its ... | 08/02/2011 |
| 7950673 | Stair chair A chair configured for transporting a subject (e.g., up or down an elevated surface (e.g., a stairway, a curb, a ramp, etc.)) and methods of using the same is provided. In particular, a chair comprising a rail assembly, a pair of back legs and a pair of front legs, ... | 05/31/2011 |
| 7651103 | Wheelchair A wheelchair is disclosed. An illustrative embodiment of the wheelchair includes a wheelchair frame, a pair of rear wheels and a pair of front wheels carried by the wheelchair frame, a drive motor drivingly engaging at least one of the pair of rear wheels and the pa... | 01/26/2010 |
| 7438145 | Vehicle adaptable to various terrains A vehicle is adaptable to various terrains. The vehicle includes a frame and two rolling sets connected to the frame. Each of the rolling sets includes two legs pivotally connected to the frame, two casters, a pin and a wheel. Each of the legs defines a slot. Each o... | 10/21/2008 |
| 7434815 | Stair climbing wheelchair carrier A stair climbing wheelchair carrier operable by an unassisted wheelchair user is provided. The carrier includes a crawler drive unit and a carrying unit. The carrying unit includes a carrier main frame whose position is adjustable up and down relative to the crawler... | 10/14/2008 |
| 7384046 | Powered wheeled vehicle capable of travelling on level ground, over uneven surfaces and on stairs Powered wheeled vehicle (1), capable of travelling both on level ground and over uneven surfaces, comprising at least one driving tread (BR11) as well as two pairs of front wheels (R61) and rear wheels (R21), of which at least one is a dr... | 06/10/2008 |
| 7363994 | Wheeled platforms A wheeled platform 100 is disclosed, which is characterized by high mobility and reliability, and which can be used in a wide range of applications including transport and robotic devices. The wheeled platform 100 has fore and aft body portions 130,... | 04/29/2008 |
| 7347426 | Stair-climbing wheelchair carrier An extension/retraction cylinder stops or starts tilting the platform of the stair-climbing wheelchair carrier based on a detection signal from an inclination sensor provided in the crawler drive unit. When the crawler drive unit is detected to be not tilted, the ti... | 03/25/2008 |
| 7325815 | Adjustable patient transport system An adjustable patient transport system transports a patient in a comfortable, safe manner by allowing the operator to adjust the head support portion of the apparatus to suit the patient's height. The adjustable patient transport system broadly comprises a patient t... | 02/05/2008 |
| 7316405 | Stair-climbing apparatus An apparatus for climbing and descending stairs or other obstacles has three flexibly connected sections and a pair of crawler belt systems on opposite sides of the unit. Each of the crawler belt systems comprised of three crawler belts are driven by one of a pair o... | 01/08/2008 |
| 7316407 | Rolling transport with removable carrying bag and fold-up seat A combination rolling transport and fold-up seat has a detachable carry bag of waterproof, reinforced fabric, detachable snap-on wheels, and collapsible frame. The frame has a stabilizing element that allows it to stand upright and support either items on the load-b... | 01/08/2008 |
| 7311160 | Wheelchair with forced driven front caterpillar wheels The present invention relates to a wheelchair with forced driven front caterpillar wheels with a cable-hauling ratchet lever by which a user, by himself/herself, can pass over a road-block or drains on roads, lifts up the caterpillars from the ground for easy steeri... | 12/25/2007 |
| 7168712 | Multi function hand truck A multi-function hand truck is convertible to allow lifting of a load at a spaced distance from the truck and/or is convertible for use as a wheelbarrow. A pair of lifting arms co-operate with the frame of the hand truck to extend outwardly therefrom and allow the f... | 01/30/2007 |
| 7163213 | Powered hand truck A powered hand truck for assisting in the movement of objects. The powered hand truck includes an electric motor, a power source, a programable motor controller, and a transaxle, which are adaptable to existing hand trucks, or may be integrated into a new powered ha... | 01/16/2007 |
| 7124454 | Pneumatic cot for use with emergency vehicles An ambulance cot is provided having a wheeled carriage, a frame for mounting the wheels, a horizontally oriented patient litter supported from the wheeled carriage and variable, pneumatically powered height scissors frame. The pneumatic actuator is designed to give ... | 10/24/2006 |
| 7125022 | Collapsible chair A collapsible chair for transporting people up and down stairs, comprising a main frame, a seating assembly, and a rail assembly. The seating assembly is provided to form a seat for a person, and this assembly is pivotally connected to the main frame for pivotal mov... | 10/24/2006 |
| 7083174 | Auxiliary wheel set (kick-back) adapter for two-wheeled hand truck An auxiliary wheel set adapted for aftermarket installation on two-wheeled hand trucks. The apparatus includes a right vertical support and left vertical support, each having a leg portion with an upper section and a lower end, and a shoulder at its upper portion fr... | 08/01/2006 |
| 7083012 | Motorized traction device for a patient support A patient support including a propulsion device for moving the patient support. The patient support includes a propulsion system having a propulsion device operably coupled to an input system. ... | 08/01/2006 |
| 6945545 | Multi function hand truck A multi-function hand truck is convertible to allow lifting of a load at a spaced distance from the truck and/or is convertible for use as a wheelbarrow. A pair of lifting arms co-operate with the frame of the hand truck to extend outwardly therefrom and allow the f... | 09/20/2005 |
| 6942226 | Pneumatic cot for use with emergency vehicles An ambulance cot is provided having a wheeled carriage, a frame for mounting the wheels, a horizontally oriented patient litter supported from the wheeled carriage and variable, pneumatically powered height scissors frame. The pneumatic actuator is designed to give ... | 09/13/2005 |
| 6938740 | Suitcase with stair roller and brake A suitcase includes a housing defining an interior chamber. The housing has a panel, which has a first end and a second end. The panel also has at least one wheel rotatably connected to the housing adjacent to the first end of the panel for enabling rolling movement... | 09/06/2005 |
| 6935447 | Stair-climbing hand truck A stair-climbing hand truck comprising two casters held in a chassis and a supporting foot constituted by a two-arm lever having a lower support end and an upper end, a supporting foot guide connected to and guiding the upper end of the two-arm lever, a connecting r... | 08/30/2005 |
| 6932363 | Portable universal cart A collapsible and portable cart for universal use in a wide variety of residential and commercial environments, transporting different and various items, while shopping, gardening, laundry, transporting boxes or luggage, etc. The cart has base portion with wheels, w... | 08/23/2005 |
| 6857490 | Stair-climbing wheelchair A stair-climbing wheelchair has a pair of track assemblies that can be placed in an operative drive mode to propel the wheelchair along ascending and descending paths of travel relative to an obstacle such as a stairway, curb, or the like. Each track assembly includ... | 02/22/2005 |
| 6805209 | Wheelchair motorizing apparatus A wheelchair motorizing apparatus employs an articulated tread drive in combination with front support wheels and rear drive wheels. The tread drive is used to provide traction during the ascent or descent of stairs or the traversing of obstacles, the front support ... | 10/19/2004 |
| 6648343 | Stair chair The present invention is directed to a stair chair. The stair chair includes a seat assembly mounted to a main frame and configured to pivot about a first pivot axis. A rail assembly having two laterally spaced brackets provided at a lower end of the rail... | 11/18/2003 |
| 6561524 | Collapsible chair A collapsible chair for transporting people up and down stairs, comprising a main frame, a seating assembly, and a rail assembly. The seating assembly is provided to form a set for a person, and this assembly is pivotally connected to the main frame for p... | 05/13/2003 |
| 6422576 | Transport mechanism A transport mechanism (104) for transporting a load-assembly (102), the transport mechanism comprising a closed flexible track (106) supported at an internal side thereof by at least two support rollers (108, 110), which at a first position one of the sup... | 07/23/2002 |
| 6357774 | Conversion kit for creating an obstacle-mounting wheelchair A kit for converting a conventional wheelchair into an obstacle-mounting wheelchair, allowing an occupant to glide over obstacles such as sidewalk curbs. After removal of the large rear wheels and smaller front wheels of a conventional wheelchair, a pair ... | 03/19/2002 |
| 6336642 | Safety device for stair-climbing systems A safety device for stairway elevator systems (10) used for transporting apparatus and goods, especially wheelchairs (9) with persons who are unable to walk. The device is characterized in that the stairway elevator (10) or wheelchair (9) is fitted with a... | 01/08/2002 |
| 6325167 | Structure of an electrical wheelchair An improved structure of a wheelchair includes a seat, a to-and-fro adjusting member, a left-and-right adjusting member, a bottom frame body, a wheel belt module, a vertical sensor, and a retractable leakage prevention cover, wherein the seat is provided ... | 12/04/2001 |
| 6095531 | Hand truck with stair tread roller assembly An improved hand truck apparatus for use in moving loads up and down stair which includes a pair of novel stair tread engaging assemblies which operate smoothly and in a relatively friction-free manner. The stair engaging belts of each of the stair tread ... | 08/01/2000 |
| 5868403 | Medical transport device The invention is directed to a medical transport device for moving a patient down a flight of stairs. A chair has a plurality of support members. A plurality of rollers are each connected to at least one of the support members. At least one tread defining... | 02/09/1999 |
| 5797606 | Transporter for patient's emergency escape There is provided a transporter for patient's emergency escape, comprising: a transporter main body including a main body frame structure; a pair of crawler devices disposed on opposite sides of the transporter main body, each crawler device having a grou... | 08/25/1998 |
| 5641030 | Powered tracked vehicle suitable for carriages for the disabled The powered tracked vehicle is equipped with photocells (13, 45) which monitor its backward and forward movements and automatically modify their orientation according to whether the vehicle is travelling on the level or negotiating stairs or a slope. The ... | 06/24/1997 |
| 5579877 | Suitcases with tank track roller assemblies and pull handles A suitcase with a tank track roller assembly comprises a first segment and a second segment. At least one of the segments is formed as a hollow generally rectangular shaped box with one open side. One segment includes a carry handle affixed to its upper e... | 12/03/1996 |
| 5577567 | Stair climbing wheelchair In order to provide safe and effective surface climbing and descending vehicles, the vehicle includes a base for supporting a platform to be maintained in a generally horizontal orientation. The mechanism automatically raises and lowers the platform as th... | 11/26/1996 |
| 5423563 | Wheelchair having apparatus for climbing stairs A wheelchair having apparatus mounted thereon which, when placed in stair-climbing position, enables an occupant of the wheelchair to turn the large wheels of the wheelchair in a reverse direction, thereby causing a plurality of sprockets and chains mount... | 06/13/1995 |
| 5419569 | Fire fighters hand truck A hand truck for fire fighting stores and transports SCBA air bottles. The highly stable hand truck is designed for efficient manipulation by one or two firefighters. It readily traverses obstructed areas, inclined stair cases and the like. The frame comp... | 05/30/1995 |
| 5413367 | Movable chair A movable chair includes a chair main body and a pair of left and right traveling devices. The chair main body has a seat portion. The traveling devices are disposed on left and right sides of the chair main body and are designed to move the chair main bo... | 05/09/1995 |
