Occupant-arising Assist Patents (Class 297/DIG10)
  • Patent number: 6161229
    Abstract: An apparatus is disclosed having a frame, front and rear guides rigidly secured to the frame and having front and rear channels passing therethrough, angling rearwardly from top to bottom. A toilet seat is operably connected to the frame and is movable between a lowered position and a raised position. A driver is operably connected to the toilet seat to move the seat between the lowered and raised positions. An armrest is provided, the armrest having front and rear members slidably passing through the front and rear channels of the front and rear guides, respectively. The front and rear armrest members are operably connected to the driver for moving them through the front and rear channels as the armrest moves between a lowered position and a raised position. The armrest may be operably connected to the driver so that a top portion of the armrest remains in a substantially horizontal position as the armrest moves between the lowered position and the raised position.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: December 19, 2000
    Assignee: Assist Healthcare, LLC
    Inventors: Leon M. Ryan, Charles K. Dorland, Eldridge P. Douglass
  • Patent number: 6158804
    Abstract: Apparatus is provided to assist a person in rising from a seat to a standing position that uses muscles other than leg muscles to accomplish that purpose. The device is portable and may serve as a walking stick or cane in addition to its rising assisting function. The device has a long lever or element with a broad flat enlargement at one end to fit under the buttocks. At the other end is an upright member to be grasped and pushed fore and aft in a rocking motion. On a forceful forward motion, as the free end of the lever is depressed, the bottom of the lever is forced against the upper forward edge of the seat, acting as a fulcrum to force the buttocks upward at the second end of the lever. The torso and arm muscles are thus helping the leg muscles in elevating the person to a standing position.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: December 12, 2000
    Inventor: Harold M. Luvisch
  • Patent number: 6154896
    Abstract: A powered lift assist toilet seat assembly is disclosed for assisting physically impaired persons in being raised from and lowered to a position above a conventional toilet to perform normal toilet functions. The seat assembly includes a movable platform having a central opening, a toilet seat secured over the opening, and a pair of handrails secured to the platform on both sides of the toilet seat. An arrangement of link members are pivotally connected between the movable platform and a lower frame for controlling a movement of the platform upon actuation of a drive member. The arrangement of link members is such that the movable platform is pivoted and moved forwardly when the platform is raised by actuation of the drive member. The arrangement of link members includes first and second link assemblies positioned on respective sides of the platform which are interconnected by a pair of transverse shafts to increase a load capacity and stabilize the platform during operation.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: December 5, 2000
    Inventors: John Houston, Richard Freidenberger
  • Patent number: 6152478
    Abstract: A wheelchair includes a base with two pairs of wheels connected to two sides of the base. A seat is connected to the base and a backrest is connected to the rear end of the seat. A seat shaft is located below the seat and a backrest supports the backrest. Two identical transmitting systems are connected between the seat shaft and the backrest shaft, wherein the seat shaft is driven by a motor. Each of the seat shaft and the backrest shaft has a rotatable member and a fixed member co-axially mounted to one of two ends thereof. A connecting tube is connected between the rotatable member on the seat shaft and the fixed member on the backrest shaft. Each of the rotatable member and the fixed member has arciform slots defined therein so that a chain is engaged with the arciform slots and passing through the connecting tube. The seat can be pivoted to an upright position to assist the disable person to stand up by rotating the rotatable members.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: November 28, 2000
    Inventor: Chin-Lien Hung
  • Patent number: 6142568
    Abstract: The disclosed invention is a means of providing an individual with increased ambulatory function through the use of a wheeled chair. The chair includes a lift mechanism, which is comprised of a linkage and an actuation means that can be operated by the user without assistance from another individual. The combination enables a user of compromised physical capabilities, to locomote from one place to another and perform daily tasks that would require bending or reaching. The chair is lightweight and very mobile, thereby minimizing restrictions to the user. The lift mechanism linkage and actuation means minimizes torque on the motor of the actuation means, eliminating current draw spikes which would stall the motor when the battery is low. The lightweight and low friction linkage design maximizes the function of the invention by keeping the battery and actuation means small, thereby reducing the weight and increasing the mobility of the chair.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: November 7, 2000
    Assignee: Lyle Allred
    Inventors: Kevin Abelbeck, Lyle Allred
  • Patent number: 6125957
    Abstract: A prosthetic apparatus is electrically operable by a user for lifting the user into standing position and lowering the user into a sitting position by power means operated by the user, the apparatus being a motorized wheelchair.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: October 3, 2000
    Inventor: Ricardo M. Kauffmann
  • Patent number: 6113188
    Abstract: A portable device is provided for assisting persons with the acts of sitting down and rising from a seated position. The device comprises a base a seat, an inflatable air chamber and a battery powered air compressor. The air chamber, the compressor and the battery are self-contained within the base and seat, which fit together to form a case. The device further comprises three stabilizing scissor-braces which support and stabilize the side edges and the rear edge of the seat throughout its range of travel. The air chamber is preferably fashioned of non-stretch material. The device may also include a cable and spring mechanism to urge the seat into a closed position from a raised open position.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: September 5, 2000
    Inventors: Robert V. Stewart, Robert B. Stewart
  • Patent number: 6106062
    Abstract: A chair comprises a base, a seat support frame which is longitudinally movable back and forth with respect to said base, and a seat. A lift mechanism mounts the seat on the frame and is capable of lifting said seat from a lowered seating position to a raised position to assist an occupant in exiting from the seat. Locking means is actuatable as the seat is raised to lock the frame against movement with respect to said base. The locking means is released as the seat is lowered to its seating position to free the frame for movement with respect to said base.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: August 22, 2000
    Assignees: Kenneth Casey, Kenneth Kemmerer
    Inventors: Robert C. Ambrose, Jr., Kenneth J. Casey
  • Patent number: 6053519
    Abstract: An occupant-operated motorized vehicle is provided having a motorized front wheel assembly. The vehicle is further provided with an operator controlled lifting structure which aides the occupant in coming to a standing position. The lifting structure includes a linear actuator that is coupled to a clevis, which is in turn coupled to a shaft. Activation of the actuator causes the clevis and therefore the shaft to rotate. Attached to each end of the shaft is a lift lever that extends rearwardly away from the shaft. The end of the lever not attached to the shaft are equipped to be coupled to a support sling that is used to support the occupant and raise the occupant to a standing position. The vehicle is further equipped with a seat to accommodate the occupant in an initial seated position, and at any time that the occupant desires to be in a seated position.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: April 25, 2000
    Assignee: The Advanced Technologies Corp.
    Inventors: Joel T. Poindexter, Robert A. Eberle, James L. Gerner, Joel D. Poindexter, Edith L. Poindexter
  • Patent number: 6050644
    Abstract: A portable armrest (100) provides assistance in rising from or descending into a armless sitting device (10) such as a chair, sofa, couch, bench or vehicle seat. Two handles (110, 112) are connected to a base having a shape that allows the user to sit directly on the seating surface (20) of the armless sitting device (10).
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: April 18, 2000
    Inventor: Robert Neal
  • Patent number: 6000758
    Abstract: The lift chair has a base frame, an extendable/retractable chair occupant positioning apparatus attached to the base frame, a reversible D.C. motor for extension and retraction of the chair occupant positioning apparatus relative to the base frame. A control means is connected to the D.C. motor for actuation of the chair occupant positioning device. A power supply is connected to the control means for motor control. A chair occupant carriage is supported by the base frame. The carriage has a seat and a back portion.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: December 14, 1999
    Assignee: Pride Health Care, Inc.
    Inventors: Walter E. Schaffner, Carl A. Kollar, James P. Mulhern, Ronald J. Levi, Stephen J. Antonishak
  • Patent number: 5988747
    Abstract: A seating device which comprises an inflatable seat (4) and an inflating means which provides for the controlled inflation and deflation of the seat. The seat (4) comprises a chamber defined by top, bottom and side walls (12, 13) which is connected to the inflation means. The inflation means comprises a motorised fan unit (20) and a control valve (6) connected by a supply pipe (10) to the seat (4). The device is inflatable from a deflated position on the base of a support surface such as a bath to an inflated position adjacent the rim of the bath such that a person sitting thereon can easily enter or exit the bath to bathe. The device is of particular use for handicapped or elderly persons and does not require mechanical actuation means and has sufficient inflatable characteristic to enable the seat to remain in a fixed position in relation to the bath.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: November 23, 1999
    Inventor: Edward Lewis Jeans
  • Patent number: 5984338
    Abstract: The raising wheelchair, for stability, has a wheeled frame, preferably including two side frames (25), and a raising system (21) with the customary seat and backrest, pivotably secured to the wheeled frame (11). A footrest (23) is connected to at least one shaft or rod element (37) which is guided in a tubular element of the respective side frame (25). Coupling elements (39) at each side of the wheelchair couple the raising system (21) with the shaft or rod element (37) of the footrest (23). Light weight and high stability are obtained by utilizing a portion of the frame construction for guidance of the footrest in its movement from a raised to a lowered position against a floor.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: November 16, 1999
    Assignee: Levo AG Dottikon
    Inventor: Bruno Meyer
  • Patent number: 5984411
    Abstract: The elevator chair has a seat assembly mounted on a support frame which includes an occupant supporting seat having a rear seat section, a seat back connected to and extending upwardly from the rear seat section and a front seat section which extends substantially across the extent of the rear seat section and which is pivoted to the rear seat section. A seat drive unit drives the seat assembly from a first position where the front and rear seat sections extend in the same first plane to a second position where the rear seat section remains in a second plane parallel to said first plane while the front seat section angles downwardly and outwardly. Subsequently the seat drive unit drives the seat assembly to a third position where the rear seat section tilts forwardly toward the front seat section.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: November 16, 1999
    Inventor: Michael H. Galumbeck
  • Patent number: 5931532
    Abstract: A power operated lift recliner which includes a safety system which senses the presence of an object located between a raised chair and the base frame and deactivates the power lift mechanism to prevent the mechanism from lowering the chair toward the base onto the object located therebetween.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: August 3, 1999
    Inventors: Kenneth Kemmerer, Kenneth Casey
  • Patent number: 5918936
    Abstract: A seat lift employs an integral linkage which causes the seating surface to rise, move forward and tilt as the unit is actuated. The seat motion emulates the natural motion of a person rising from a seated position and is directed by combined linkages of different lengths. A hinged section of the front of the seat surface doubles as an integral linkage and provides a vertical component of motion when the seat is powered. The linkage mechanism is easily adapted to seat lifts of all kinds, such as wheelchairs and public seating in addition to furniture and a portable seat lift. When pneumatically powered, the system employs an easily replaced air chamber which has standardized mounting features and is a cylinder formed of flexible, non-elastic fabric. Separate, easily controlled means are provided to inflate and deflate the air chamber.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: July 6, 1999
    Inventor: Lloyd F. Murphy
  • Patent number: 5898953
    Abstract: A Rising Seat that can be fixed permanently to a seat or toilet and which can also be readily adapted as a portable seat. It comprises a top rising section on which the user sits, pivoted to a bottom section. There is at least one torsion spring located on a torsion bar that may also act as a hinge. When the legs of any selected number of springs are placed in spaces/openings incorporated in the seat, those springs become inoperable having been moved away from firm surfaces on the rising seat against which they give resilience to the top section. This enables adjustment to be made to suit the weight of the user, and when the legs of all the springs are placed in the spaces/openings the top section can be folded down without resilience for carriage and storage and to give the appearance of a standard seat cushion when not in use.
    Type: Grant
    Filed: November 22, 1997
    Date of Patent: May 4, 1999
    Inventor: John B. Paxon
  • Patent number: 5884935
    Abstract: A reconfigurable support assembly accessible to a wheel chair bound user for supporting and elevating the user between seated and erect postures. A base frame is configurable to be stationary with foot pads or mobile with roller casters or wheels. Molded foot restraints mount to a base frame or an elevated cross tower to support the feet at selected orientations. A telescoping forward support framework accepts a variety of adjustable accessories, including cushioned knee or leg support assemblies, a chest or upper body support, a table top, arm troughs and manual, hand driven drive assemblies. Adjustable seat and seat back assemblies optionally support pivoting armrests, hip and lateral trunk supports, an extendible back support frame, shoulder retainers, and a head rest. The position of a seat cushion and inclination of the seat back are separately adjustable.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: March 23, 1999
    Inventor: Alan L. Tholkes
  • Patent number: 5853015
    Abstract: This invention describes lifting devices that enable a partially ambulatory person to rise from a sitting position without the assistance of another person. The lifting device preferably comprises a base support in a substantially U-shaped frame having a user receptive front and a spaced apart rear formed by two front legs separated by front support braces and each front leg being connected to a rear leg at a cross support, thereby forming sides of the device. Hand rails are slidably mounted with each pair of front and rear legs.An linear actuator mechanism is connected through the frame to the underside of each hand rail and provides synchronous telescoping action to the hand rails. The linear actuator mechanism is comprised of a gear motor, and gear reducer mounted on an actuator support, a ball nut fixedly mounted within the cross support, and a ball screw fixed at one end to the gear reducer, engaging the ball nut and ultimately attached to the hand rail.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: December 29, 1998
    Inventor: Allan B. Evans
  • Patent number: 5806920
    Abstract: A lift chair being movable between reclining and forward lifting positions. The lift chair comprises a chair portion and a back portion, a base member having an upper surface that defines a first mating surface and sub-frame assembly, supporting the chair portion, having a front portion, a rear portion, and a second mating surface that is engagable with the first mating surface. The sub-frame assembly being movably connected to the base member proximate to the front thereof and further comprising a rotatable beam rotatably connected to the rear thereof having a back support member to which is attached the back portion. A n ottoman, movable between extended and retracted positions, is provided and is associated with the base member.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: September 15, 1998
    Inventor: Eric D. Blount
  • Patent number: 5803545
    Abstract: Disclosed herein is a chair, especially a chair for the handicapped, in which the backrest and seat are jointly angularly adjustable by only one motor, with the motor and a gas spring being articulated on only one movable pivot axis. This results in a very simple and compact design that has few individual parts.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: September 8, 1998
    Assignee: Le Couviour Mobilier specialise sante
    Inventor: Pascal Guguin
  • Patent number: 5794284
    Abstract: Apparatus for aiding persons in rising or descending between seated and standing positions provides stability to a conventional walker. In a preferred embodiment, an apparatus has a platform portion and two flexible connection members. The platform portion is substantially rigid and includes two parallel rails. At forward end portions of the rails, openings are formed for pivotable attachment therethrough of the connection members. The connection members are also pivotably attached to a forward portion of the walker, so that when a person places his or her weight on the platform portion, the connection members transmit the weight to the walker, thereby stabilizing the walker.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: August 18, 1998
    Assignee: Walker Sled, L.P.
    Inventors: Joseph Ray Southwell, Jr., Deborah Ann Southwell, Ruth Ann Southwell, Joseph Ray Southwell, III, Kathryn A. Sikorski, Paul Robinson, James Edward Petkovsek, Steven Bereyso
  • Patent number: 5772226
    Abstract: A wheelchair having a lifting device wherein the seat and the footrest are independent from each other and are mounted on the top ends of two deformable quadrilaterals extending upwards from the chassis and sharing a common moving portion, and wherein the raising and lowering control devices comprise a drive member interposed between the chassis and one of the moving members of one of the quadrilaterals, and suitable for controlling the displacement of said quadrilaterals between a stable folded state and a stable unfolded state.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: June 30, 1998
    Assignee: International Diffusion Consommateurs - I.D.C.
    Inventor: Gerard Bobichon
  • Patent number: 5742957
    Abstract: A pneumatic sit/stand device which is preferably used in assisting an invalid or physically disadvantaged person in rising from, or being seated in, a chair. The sit/stand device includes an inflatable bag having two or more cavities which inflate sequentially to help stabilize the person as he is raised from or lowered into a chair. Rear and side wall cavities inflate first to provide stabilization and push the person forward so that his feet contact the floor. A center cavity then inflates to lift and thrust the person into a standing position. The side walls help prevent the person from tilting or leaning from one side to another as air pressure equalizes the bag. The device can be used alone by the physically disadvantaged person or in conjunction with an attendant whose duty is to assist the person in sitting or standing.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: April 28, 1998
    Inventor: B. W. Vanzant
  • Patent number: 5730494
    Abstract: A chair including a power-assisted linear actuation drive mechanism having a cam guide which is linearly movable upon rotation of a shaft for selectively actuating a lift and tilt linkage mechanism, and for causing forward lifting and tilting movement of the chair when a motor of the mechanism is operated in a first direction. Rotation of a shaft in a second opposite direction acts to lower the chair to a normal seating position. Continued rotation in the second direction causes a first cam block pivotably mounted to the cam guide to engage a first follower assembly for causing extension of a leg rest assembly and for causing a rearward tilt of the chair frame. Further rotation in the second direction causes a second cam block pivotably mounted to the cam guide to engage a second follower assembly for causing reclining movement of the chair and for causing an additional rearward tilt of the chair frame.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: March 24, 1998
    Assignee: La-Z-Boy Incorporated
    Inventors: Larry P. LaPointe, Ken K. Finzel, Jonathan R. Saul, Karl J. Komorowski, Richard E. Marshall, Dennis W. Wright
  • Patent number: 5708992
    Abstract: Disclosed is a device for placement in a bathtub or the like as an entering and exiting aid. A seat with a backrest and base includes a seat panel that can be raised and lowered. A drive is used for raising and lowering the seat panel with an actuator arranged between drive and seat panel. The actuator includes a stay that attaches to the seat panel and allows downward extension so as to bear on a bearing surface, for example a base of the device, thus effecting a raising of the seat panel that matches its extension.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: January 20, 1998
    Inventors: Walter Gobbers, Dieter Gobbers
  • Patent number: 5673970
    Abstract: A pivoted seat and footrest chair having a seat and footrest at the top and bottom of a pair of vertical supports such that rotation of the seat forward rotates the footrest back as the person rises out of the chair, allowing easy exiting. The center of gravity of the seat and footrest assembly are vertically aligned with or forward of a pivot point when the seat is in the forward position, such that the seat remains in or rotates toward the forward position when unoccupied. Additionally, the seat extends in front of the armrests while the footrest remains under the seat when the seat is in the forward position, such that the seat is easy to access.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: October 7, 1997
    Inventor: Wesley Ross Holmquist
  • Patent number: 5661858
    Abstract: A compact powered lift toilet for assisting a person in rising from or being seated upon a toilet by duplicating the natural motions of the human body. The toilet set accomplishes three separate motions simultaneously: (1) vertical translation, (2) horizontal translation, and (3) rotation. A sun and planet gear mechanism lifts and moves forward the front of the toilet seat while a lever action on the rear of the toilet seat causes the rear of the seat to rise and tilt forward with respect to the front of the seat. Both the sun and planet gear and the rear lever action are effected by a single linear actuator.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: September 2, 1997
    Inventors: Edward L. House, Johnny White, Howard L. House, Greg Dollins, Ronald Lucy
  • Patent number: 5651580
    Abstract: A chair including a power-assisted linear actuation drive mechanism having a cam guide which is linearly movable upon retraction of a shaft for selectively actuating a lift and tilt linkage mechanism, and for causing forward lifting and tilting movement of the chair when a motor of the mechanism is operated in a first direction. Extension of a shaft in a second opposite direction acts to lower the chair to a normal seating position. Continued extension in the second direction causes a first cam block pivotably mounted to the cam guide to engage a first follower assembly for causing extension of a leg rest assembly. Further extension in the second direction causes a second cam block pivotably mounted to the cam guide to engage a second follower assembly for causing reclining movement of the chair. This sequential operation of the leg rest assembly and the reclining linkage are independent and may be easily disabled to selectively eliminate either of the features.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 29, 1997
    Assignee: La-Z-Boy Chair Company
    Inventors: Larry P. LaPointe, Bryan P. Brettschneider
  • Patent number: 5641201
    Abstract: A universal lift frame to which the bottom of a conventional chair, recliner or lounger is readily attachable. The frame includes a base and a platform which is moved vertically and tilted forward and backward to assist the occupant in getting in and out of the chair.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: June 24, 1997
    Assignee: American Dream International
    Inventors: Kenneth Casey, Kenneth A. Kemmerer
  • Patent number: 5630236
    Abstract: Lavatory assistance device for supporting and assisting persons having difficulty in sitting or standing. A stationary frame (5) is maintained in place by two jack-screws (29) pressing on the ceiling. Two moving connecting rods (25, 26) actuated by a cylinder (2), shift a cradle (20) supporting the user under the armpits. The user controls the lowering, stopping or raising manoeuvre by operating a control having handles (9) which are placed in front of the cradle. The force necessary for these manoeuvres is provided by pressure of water from the main supply acting on the cylinder piston (2) before falling again into the cistern for normal use. The hydraulic connection is made by fitting a special joint (17) in place of the existing tap. The arm-cradle assembly can be folded and blocked in a high position, for normal access to the lavatory. The device can be used in hospitals, homes for the elderly or the sick, rehabilitation centers, or it can be rented out.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: May 20, 1997
    Assignee: Messin Brevets
    Inventor: Claude Messin
  • Patent number: 5626389
    Abstract: A lift seat includes a seating surface, for example, a toilet seat, mounted on a supporting frame by a four-bar linkage. The four-bar linkage includes a lower link fixed to the frame and an upper link fixed to the seat. An armrest is attached to a front link of the four-bar linkage for pivoting therewith against the bias of the spring which loads the four-bar linkage as the seat is lowered from a raised position in a seating position. Energy stored in the spring is then available to lift the person from the seating position back to the raised position. A damper is connected to the four-bar linkage to prevent abrupt movement of the seat as the four-bar mechanism collapses and expands, while a gas spring is provided to initially resist movement of the four-bar linkage from either the expanded or the collapsed condition unless the armrest is initially rotated.
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: May 6, 1997
    Assignee: Dynamic Seating LLC
    Inventor: Emanuel Logan, Jr.
  • Patent number: 5624159
    Abstract: A narrow seating device or chair including a support caddy having lockable ground engaging caster wheels and a seat portion for a patient undergoing a medical test. The seat portion is mounted on the support caddy and tiltable to a plurality of tilt positions. The seat portion has a convexly curved surface which rests on spaced apart rollers on the upper side of the support caddy to enable tilting. A linear actuator having a first end attached to the support caddy and a second end connected to the seat portion provides for tiltable movement of the seat relative to the support.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: April 29, 1997
    Assignee: Vess Chairs, Inc.
    Inventors: Michael J. Celoni, Judith I. Kulpa, Michael F. Conmy
  • Patent number: 5618055
    Abstract: A stander has a collapsible supporting base including a generally U-shaped frame with a horizontal bar that forms its middle section, and a T-shaped frame having a central extremity which is secured to the bar of the U-shaped frame, the two legs of each frame being adapted to rest upon a flat supporting surface and the two frames being foldably secured together and normally separated by about ninety degrees; and an elongated center post assembly for supporting the body of a person in essentially parallel relation, the center post assembly having a head support end and a foot support end, and having a mid-point pivotally secured to the horizontal bar; and adjustable piston means extending beneath the bar and coupling the T-shaped frame to the center post assembly so that the center post assembly may be rotated by more than ninety degrees between an essentially vertical orientation in which its foot support end is lowermost, and an inclined position in which the elevation of its foot support end is higher than
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: April 8, 1997
    Assignee: Mulholland Designs, Inc.
    Inventor: Lawrence K. Mulholland
  • Patent number: 5592703
    Abstract: An apparatus is provided for moving a toilet seat between a lowered position immediately above a toilet bowl and a raised position above the toilet bowl to assist a physically disabled person to use a toilet. The apparatus includes a toilet seat having a passageway therethrough, a baseplate positioned about the base of a toilet bowl, and a pair of fluid power cylinders supporting the toilet seat for vertical movement between a lowered position immediately above the toilet bowl and an raised position from which the person can easily move between a standing position and a position at least partially supported on the toilet seat. Each of the cylinders has a piston rod extending downwardly therefrom and connected to the baseplate. Fluid lines provide pressurized fluid to the cylinders through the passageway in the toilet seat.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: January 14, 1997
    Assignee: Mobility Plus, Inc.
    Inventors: David L. Jones, George L. Drenner, Jr.
  • Patent number: 5592997
    Abstract: A wheelchair basically designed for mobility impaired children ages 2-6. The wheelchair is especially designed to facilitate the child's access to all objects and activities that would normally be available to a non-disabled child. The chair includes a power base, including large front drive wheels and small rear casters, and a seat that is positioned directly over the drive wheels and that is readily detachable from the base. All components of the wheelchair are positioned inboard of the side edges of the seat and inboard of the front edge of the seat so as to maximize access to areas alongside of and in front of the wheelchair.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: January 14, 1997
    Inventor: Richard D. Ball
  • Patent number: 5588162
    Abstract: A power actuated toilet seat comprising a frame; a hinge mounted on the frame; a standard padded toilet seat connected at a forward end to the hinge; an actuator assembly in electrical communication with an external source of electricity and connected to a rear end of the toilet seat for raising and lowering the toilet seat; and a switch mounted to the frame and in electrical communication with the actuator assembly to permit the user to selectively raise and lower the toilet seat in response to manipulation of the switch.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: December 31, 1996
    Inventor: Gary C. Robinson
  • Patent number: 5577278
    Abstract: By providing position control means cooperatively associated with a support pad with said control means being constructed for arcuately moving the support pad in response to activation by the user, with the position control means and pad peripherally surrounded by a cover, a unique, portable, self-contained, unitary, movably adjustable support assembly is attained whereby individuals are able to position the support pad in any desired location or on any surface while also being able to automatically raise and/or lower the support pad to any position for comfort and support. In the preferred embodiment, the movably adjustable support assembly is constructed with expandable shroud means integrally connected with the cover in association with the position control means for expanding in response to the arcuate movement of the position control means while being automatically retracted into a folded configuration when the control means are returned to its original position.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: November 26, 1996
    Assignee: Princeton Products Inc.
    Inventors: Donald Barker, John Hamma, Bruce A. Brown
  • Patent number: 5567001
    Abstract: An improved seat for a disabled driver or passenger of an automotive vehicle, is disclosed. The seat comprises a seat cushion including a stationary cushion component and a transport cushion component, the transport cushion component being constrained for movement in a path between a retracted position and an extended position. The transport cushion component is controlled by an operational system that includes a member having an extension member telescopically extendable from an end thereof and cable-drive means for moving the component between the retracted position and the extended position when under constant manual control. The manual actuator is accessible to constant manual control at the transport cushion and is recessed therein.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: October 22, 1996
    Assignee: Enhancements Unlimited, Inc.
    Inventor: Wojciech Zalewski
  • Patent number: 5556120
    Abstract: An interface is provided to convert a wheelstand to a wheelchair by removal of the prone board from the wheelstand frame. The interface has a rectangular frame member with outwardly extending tabs which are connected to the wheelstand frame by interlock positioning collars, brackets and latches. A seat is connected to the interface frame member.
    Type: Grant
    Filed: August 23, 1994
    Date of Patent: September 17, 1996
    Inventor: Daniel W. Davis
  • Patent number: 5556121
    Abstract: A motorized assistance device for use on an elevator wheelchair for handicapped persons includes a supporting cradle intended to be fitted on the chassis of the wheelchair; a motorization unit mounted on the cradle and including a mobile member, with reversible displacement, operatively connected to a transmission; at least one articulated system actuated by the transmission and including a first set of levers intended to act on articulated structure of the wheelchair, and a second set of levers actuated by the first set of levers and intended to act on a maneuvering assembly; and a unit for controlling operation of the motorization unit. The device is particularly applicable to manually controlled wheelchairs.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: September 17, 1996
    Assignee: International Diffusion Consommateurs I.D.C.
    Inventor: Bernard Pillot
  • Patent number: 5535459
    Abstract: A transfer seat assembly is disclosed for use in conjunction with a hospital bed to transfer a patient from the bed to a location remote therefrom. The transfer seat assembly includes a frame portion and a removable seating portion. A method of transferring a patient from a reclined position on the bed to a seated position remote from the bed upon the transfer seat assembly is also disclosed.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: July 16, 1996
    Assignee: Nova Technologies, Inc.
    Inventors: Paul DiMatteo, Charles Chubb, Robert Nichols
  • Patent number: 5520439
    Abstract: A reclinable, lift chair is provided being movable between a fully reclined and forward lifted positions, comprising a chair portion, a back portion, and a base member having front and rear portions, a lower ground engaging surface that defines a first plane, and an upper surface that defines a first mating surface. A sub-frame assembly supports the chair portion and includes a front, rear, and side portions and a second mating surface that is engageable with the first mating surface. The sub-frame assembly is rotatably connected to the base at the front portion thereof wherein the sub-frame assembly further comprises a rotatable beam having a back support member to which the back portion is attached.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: May 28, 1996
    Inventor: Eric D. Blount
  • Patent number: 5513867
    Abstract: A wheelchair includes a seat that pivots forward to assist the user in exiting and entering the chair. The seat is biased toward its forward or up-right position by mechanical springs having force adjustments for user adjustment of the seat-lift force. One embodiment includes a cam mechanism for varying this seat-lift force as the seat is being raised. A closed-loop hydraulic cylinder and piston actuator system is provided to (1) damp the spring action as the seat is raised and lowered, (2) control the rate of seat ascent and descent, and (3) permit the user to stop and lock the seat in any position between the horizontal and up-right positions. This closed-loop hydraulic system includes a manual control valve for user-control of the seat raising and lowering, and a user-adjustable flow rate control valve for limiting seat ascent and descent speeds.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: May 7, 1996
    Assignee: University of Utah
    Inventors: Donald S. Bloswick, Ben D. Shirley, Eric M. King
  • Patent number: 5505518
    Abstract: An inflatable device for assisting in rasing a seated person to a standing position, comprising a base member formed of a rigid material in a planar configuration, the base member having a leading edge and a trailing edge and side edges therebetween. An upper member is formed of a rigid material in a planar configuration, the upper member having a leading edge and a trailing edge and side edges therebetween. A hinge member couples the leading edge of the base member with the leading edge of the upper member to allow the upper member to pivot into an inoperative position essentially parallel with the base member and an operative orientation positioned thereabove being separated to the greatest extent at the trailing edge. An air impervious membrane couples the base member and the upper member around their peripheries in the areas remote from the hinge to thereby define an air chamber between the base member and upper member.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: April 9, 1996
    Inventor: Oliver E. Pike
  • Patent number: 5498064
    Abstract: A seat unit includes a frame structure and a seat. A linkage assembly interconnects the frame structure and the seat for displacement of the seat relative to the frame structure between a lowered sitting position and a raised position to provide assistance for the person using the seat unit to stand up therefrom. The linkage assembly causes the rearward part of the seat to be raised by a greater distance than the front part so that the seat also tilts forwardly. First and second springs urge the seat towards its raised position, the springs being operable in combination to produce an overall spring force urging the seat towards its raised position with a spring force value which is of a desired magnitude in each part of the movement towards the raised position.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: March 12, 1996
    Inventors: John A. Hooker, deceased, by Christopher J. Hooker, legal representative
  • Patent number: 5490687
    Abstract: A wheelchair composed of a frame with a seating surface, a backrest, a plurality of wheels and a lifting device for lifting a user of the wheelchair from a seated position to a standing position. The lifting device includes two spars connected to the frame to have a substantially vertical orientation when in use and a mechanism for converting a manual force into a lifting force for lifting the user toward the standing position. The mechanism for converting is composed of: a seating band positionable to act on the user's body; at lease two deflection rollers on each spar; and at least one lifting cable linked to the seating band and passing around the deflection rollers in order to guide the seating band in a manner to cause the lifting force to be directed forwardly and upwardly.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: February 13, 1996
    Inventor: Rainer Scholl
  • Patent number: 5489258
    Abstract: A multi-position body support, commonly known as a stander, supports a user in either a prone or supine orientation at any position from a substantially horizontal position to a substantially standing or vertical position. The multi-position body support comprises a tubular base having dual lock caster wheels for easy moving and positioning of the stander. A vertical support assembly, pivotally mounted to the tubular base, comprises a foot cylinder, knee support frame and a height adjustment frame. A foot support is mounted to the foot cylinder, a knee support is mounted to the knee support frame and a hip support, a trunk support and a head support can be mounted to the height adjustment frame. A padded strapping system secures the user within the pads and to the vertical support assembly. The foot supports can be rotated to aid in orienting the user in the prone or supine position.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: February 6, 1996
    Assignee: Bissell Inc.
    Inventors: Kristine F. Wohnsen, Sam J. Camardello, Elsie M. Bussey
  • Patent number: 5484151
    Abstract: A personal support assembly accessible to a wheel chair bound user to support and elevate the user from a seated to an erect posture. A telescoping support column includes an adjustable tabletop, padded chest and leg supports and a pivotally mounted seat and hip support. A base frame includes transport wheels and a foot support. A manually controlled hydraulic lift pivots a cantilevered support arm to the seat support. A base frame of a stationary construction includes transport wheels and a clamped boot restraint. In a user maneuverable construction, a pair of hand wheels independently direct assembly movement via locking drive belt assemblies.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: January 16, 1996
    Inventor: Alan L. Tholkes
  • Patent number: 5482350
    Abstract: The chair disclosed includes a power-assisted linear actuation drive mechanism having a lead screw nut which is linearly movable upon rotation of a power screw for selectively actuating the lift and tilt linkage mechanism for causing forward lifting and tilting movement of the chair when the motor is operated in a first direction. Rotation of the screw shaft in a second opposite direction acts to lower the chair to the normal seating position. Continued rotation in the second direction causes a first cam block pivotably mounted to the lead screw nut to engage a first follower assembly for causing extension of the leg rest assembly. Further rotation in the second direction causes a second cam block pivotably mounted to the lead screw nut to engage a second follower assembly for causing reclining movement of the chair. This sequential operation of the leg rest assembly and the reclining linkage are independent and may be easily disabled to selectively eliminate either of the features.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: January 9, 1996
    Assignee: La-Z-Boy Chair Company
    Inventors: Karl J. Komorowski, Jonathan R. Saul, Larry P. LaPointe, Richard E. Marshall