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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7140688 | Damped armrest A damped armrest including an armrest frame defining a bore and a fixed mandrel defining an axis about which the frame rotates. A reservoir is formed by the bore and the mandrel. Vanes on the mandrel project into the reservoir. The reservoir is filled with damping m... | 11/28/2006 |
| 7131154 | Mobile transport device A convertible wheeled chair is easily changed by an attendant into a gurney of the same height as a patient bed. During the process of transferring a patient from an upright position to a reclining position, convertible wheeled chair shifts the center of gravity of ... | 11/07/2006 |
| 7121627 | Leg-rest extension A leg-rest assembly for use with a chair, in particular, a reclining chair is disclosed. The leg-rest assembly is comprised of a leg-rest pivotally connected to a seat, and a foot-rest portion attached in a telescopic relationship with the leg-rest portion. ... | 10/17/2006 |
| 7070243 | Blow molded side panel chair system A frame has a pair of laterally spaced tubular supports in a generally inverted U-shaped configuration. A seat panel, in a generally horizontal plane, is secured between the supports. A back panel is supported by the seat panel. A pair of side panels includes one pa... | 07/04/2006 |
| 7069608 | Multi-purpose patient chair A medical chair provides a radiolucent backrest pivotally secured to a seat section. A pivoting push bar on the backrest pivots between an operative position, where it can be used to maneuver the chair, and a storage position where it does not compromise the radiolu... | 07/04/2006 |
| 6948202 | Accessories for a patient support apparatus A foot section is provided for use with a patient support. The foot section includes a body and at least one support coupled to the body. ... | 09/27/2005 |
| 6912746 | Bed This invention relates to a bed for accommodating heavy persons. The bed is particularly for use in hospitals, where heavy patients have to be treated. The invention provides a bed comprising a frame; a central support section mounted on the frame; two opposite end ... | 07/05/2005 |
| 6644733 | Chair with a seat slidable relative to a seat base for synchronously actuating a footrest and a backrest A chair includes a seat base, a seat slidably mounted on the seat base, a backrest disposed rearwardly of the seat base, a footrest disposed frontwardly of the seat base, a front linkage unit interconnecting the footrest to the seat base, and a rear linka... | 11/11/2003 |
| 4945582 | Patient transport apparatus including independently or simultaneously operable leg and backrest portions A multi-purpose chair/stretcher assembly is disclosed which includes seat, backrest and leg supporting assemblies, the backrest and leg supporting assemblies both being pivotably mounted to the seat assembly. A pair of telescoping linkage assemblies conne... | 08/07/1990 |
| 4902069 | Seat especially for a flight attendant A seat or chair especially for a flight attendant in an aircraft has a backrest section and a seat section hinged to each other and to a frame in such a way that the backrest section and the seat section can take up different angular positions relative to... | 02/20/1990 |
| 4858260 | Patient transport apparatus including Trendelenburg mechanism and guard rail A multi-purpose patient support and transport apparatus is provided which includes a Trendelenburg mechanism and a novel guard rail assembly. The Trendelenburg mechanism is actuated by turning a handle in one direction. This allows a pneumatic spring conn... | 08/22/1989 |
| 4842333 | Seat In a seat having a support frame consisting of a seat portion frame and a backrest portion frame, the backrest portion frame is of a generally L-shaped configuration, with a first limb thereof extending under the seat portion frame. The first limb of the ... | 06/27/1989 |
| 4792181 | Foldable armchair with adjustable backrest and footrest This invention relates to a foldable armchair incorporating adjustable backrest and footrest, in which the connecting elements which control orientation of the footrest are connected to the backrest by pivoting crank pins provided with bearing faces coope... | 12/20/1988 |
| 4790598 | Inclinable chair provided with balance or rocker structure The chair has a seat or seat portion equipped with a balance and its linkage structure has links fixed in articulated manner to a support arm and to which there is articulated a balance device in parallelogram-like manner. A slide is slidingly guided on t... | 12/13/1988 |
| 4637652 | Piece of furniture A piece of furniture comprises a stand, a seat and a back support pivotable with respect to the seat as well as an upwardly and downwardly pivotable leg support which is provided with a foot-rest, at least one operating means being arranged to, at pivotin... | 01/20/1987 |
| 4586749 | Barber/beauty chair A pair of link plates, each pivotally connected at one end to a seat base and each pivotally connected at their other ends to a seat plate and seat supported thereby, constrain the seat plate and seat to a rearward and upward movement, or a downward and f... | 05/06/1986 |
| 4451082 | Seat for a baby's push chair A seat for a baby's push chair, which can be removed from a wheeled support structure of the push chair and used separately if desired. The seat comprises a support surface with two upstanding side panels, an adjustable rake backrest and an adjustable foo... | 05/29/1984 |
| 4410213 | Convertible chair A convertible chair which is adjustable between sitting and reclining positions features a support frame, a seat and a backrest in which the seat and backrest are tiltably mounted so that their relative inclinations can be adjusted to define the afore-men... | 10/18/1983 |
| 4307912 | Multiple position reclining chair assembly A multi-position, wall avoiding reclining chair assembly having a unitized metal frame construction and featuring an improved linkage for supporting a chair seat for forwardly directed movement relative to a chair supporting base, as the chair assumes an ... | 12/29/1981 |
| 4183578 | Electrically operated wheeled chair for physically handicapped persons An electrically operated wheeled chair for physically handicapped persons comprising a framework with casters, arm rests on the upper side of said framework, a back rest pivoted at a point provided at the upper and rear corner of the framework, an incline... | 01/15/1980 |
| 4039223 | Chair having a tiltable back-rest and two pivotal leg supports A chair, particularly a wheel-chair, having a spring biased tiltable back-rest and two pivotal leg supports including each a foot rest. The length of the leg supports from their pivot axis is automatically extended when the leg supports are swung to their... | 08/02/1977 |
| 3980335 | Reclining chair A reclining chair has a frame and a seat fixedly and immovably secured to the frame. A back is pivotally mounted to the rear of the frame and extends downwardly beneath the seat. A leg rest is pivotally mounted to the front of the frame and includes an in... | 09/14/1976 |
| 3936893 | Elevator means for the chair seat of a convertable wheel chair and bed The elevation of a chair seat from normal to raised bed level by cam action between the chair seat and a wheeled frame on which the chair seat is guided for up and down movement. A camshaft journaled on the underside of the chair seat with cam wheels at e... | 02/10/1976 |
| 3934931 | Dental chair A dental chair which comprises a seat, a back inclinable relative to said seat, first means for effecting inclination of said back, second means for pushing the front portion of said seat upward, and third means operable in response to overinclination of ... | 01/27/1976 |
| 3934929 | Adjustable dental chair The dental chair is provided which has pivotally connected back, seat and footrest sections, the seatrest being journaled in turn to a base member. A motor carried by the seat and connected to the backrest provides for articulation of the backrest relativ... | 01/27/1976 |
