Invacare Corporation

Westinghouse Electric Corporation

Hauserman, Inc.

Roland A Mentessi

Douglas C Ball

John Jindra

Dale A Pulver

George E Sherbourne

Jason D Hunt

James B Eldon, Iii

Neal Joseph Curran

Eric J Armstrong

Allen J Boris

Richard L Raith

Jeffrey M Gioitta

Anthony S Copeland

Donald J Staufenberg

Leon Goldik

Michel J Fischer

James R Miadock

Sherman M Robbins

A mid-wheel drive wheelchair can have various suspensions for the drive wheel such as a rigid connection to the wheelchair frame or a resilient connection thereto. The wheelchair has at least one anti-tip front wheel stabilizer, which is rigidly, i.e. non-resiliently, connected to the frame and accordingly the wheelchair frame moves up and down with the anti-tip wheel upon encountering a bump, hill, etc. The height of the anti-tip wheel above the travel surface is adjustable and accordingly the wheel can be set to a specific height.

Mid-wheel drive wheelchair with rigid front wheel anti-tip stabilizer

The power wheelchair includes an anti-tip assembly extending from the frame. The anti-tip assembly includes a plate secured to the frame via a dampening mechanism. A first arm extends from the plate and is mounted thereto for a limited amount of relative movement. A grounding engaging wheel disposed on a distal end of the arm is urged toward the ground surface by a biasing spring interposed between the arm and the plate. As the wheelchair begins to tip, anti-tip or resistive forces are generated initially by the biasing spring. This resisting force continues in a linear fashion until relative movement between the arm and the plate ceases. Thereafter, further resistive forces are provided by the dampener as movement of the plate toward the frame is resisted in a linear fashion by the dampener.

Anti-tip assembly for power wheelchair

A wheelchair includes a rigid upholstered seat removably mounted on a crossbrace-type chassis. The seat includes a generally square-shaped frame having a clevis assembly depending from each of the four corners of the frame. Each one of a first pair of the clevis assemblies disposed at diagonally opposed front and rear corners of the seat frame is formed with aligned generally pear-shaped openings. Each one of a second pair of the clevis assemblies disposed at the other diagonally opposed front and rear corners of the seat frame is formed with aligned generally horizontal elliptical-shaped openings. An inverted generally U-shaped mounting bracket formed with aligned openings is disposed on each end of each one of a pair of chassis sideframes. Each clevis assembly is engageable with a respective one of the U-shaped brackets so that the respective openings of the engaged brackets are aligned. A quick release pin is passed through each set of aligned openings to secure the seat to the chassis. The pear-shaped openings allow vertical articulation of the chassis relative to the seat in certain instances when a bump, depression or other irregularity on a travel surface is encountered by usually one of the wheels of the wheelchair. This articulation enables the wheelchair to insulate its occupant from shocks caused by such irregularities, and also maintains all wheels of the wheelchair in continuous contact with the travel surface to preserve occupant steering control and stability of the wheelchair.

Articulating seat/chassis interface for a wheelchair

A convertible wheelchair permits change over from an attended wheelchair arrangement to a self propelled wheelchair arrangement. The wheelchair accommodates both lateral and longitudinal dimensional changes. Further, the seat can pivot relative to the frame, as well as permitting a seat back to tilt relative to the seat portion. In the attended wheelchair arrangement, the rear wheels are simultaneously locked.

Attended to self propelled convertible pivoting wheelchair

Stile for use primarily as part of a space divider frame

An office space dividing system comprising office furniture components in combination with a plurality of structural rectangular frames having openings which may be left open or closed in varying degrees with a wide variety of fill options, which may be readily changed, to create the desired degree of privacy. The system combines the advantages of a full height office partition system with lockable doors, and an open plan panel system. An enlarged cornice accommodates both wiring and ambient lighting, with a cornice to ceiling space being left open or closed with a clerestory, as desired, without compromising the ability to install lighting fixtures and wiring. The rectangular frames have mitered stiles which, when assembled with other frames, and/or mitered fill pieces, create columns defining vertical wire ways which communicate with cornice wiring, work surface height wiring, and/or base wiring, as desired.

Frame based office space dividing system

An assembly for supporting and storing paper, reference materials and other like items on a space divider and furniture system off of work surfaces includes paired hanging vertically extending brackets having one or more horizontally projecting cantilevered arms. Each bracket includes an upper hook and alternative forms of a lower foot which maintains the brackets vertical and the arms horizontal. The hook and feet are removably secured to the ends of the brackets and the alternative feet are employed depending on the height at which the assembly is mounted on the space divider system. The brackets may be mounted anywhere along the space divider system. The arms in turn support with a snap fit several forms or sizes of molded plastic trays which interconnect the paired brackets. The arms are circular in section and the edges of the tray are provided with downwardly turned circular edges which snap over the arms. Projections partially closing such openings assist in retaining the trays on the arms. The trays are molded with a grid of slots and holes to receive and support snap-in zig-zag wire forms which may be used as tray back stops or to subdivide the trays to handle a variety of paper sizes or other items.

Office paper and the like storage and handling system

Growing community of inventors

North Royalton, OH, United States of America

Roland A Mentessi