Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7364412 | System, method, and apparatus for valve stop assembly in a reciprocating pump A reciprocating pump assembly has a pump housing with a crankshaft. A plunger is connected to the crankshaft for pumping a fluid through a cylinder. The cylinder has a fluid inlet port and an opening that provides access to the cylinder. A suction cover is mounted i... | 04/29/2008 |
| 7347432 | Child walker A child walker is provided that includes a frame having a plurality of wheels. The walker includes a handle that is positionable in a first position and a second position. A seat is attached to the frame when the handle is in the first position. When the handle is i... | 03/25/2008 |
| 7316449 | Expandable ambulatory walking device and method of use An expandable ambulatory walking device and method of use are disclosed. In one form, an ambulatory walking device includes an elongated member having a first end and a second end and a rubber contact material coupled to the first end. The device further includes an... | 01/08/2008 |
| 7287768 | Multi-mode child entertaining apparatus and methods of using the same Multi-mode child entertaining apparatus and methods of using the same are disclosed. A disclosed apparatus may be configured as a walker alternative which includes a base, a seat, and a wheeled walker to at least partially support the seat above the base. The wheele... | 10/30/2007 |
| 7226396 | Rehabilitation and fitness trainer apparatus A rehabilitation and fitness trainer apparatus includes a handle frame of generally U-shaped configuration, with two telescopic members attached at an angle to the base of the U-shaped handle portion, a generally U-shaped base frame including an elongated cross bar ... | 06/05/2007 |
| 7219956 | Convertible stool A convertible stool is interchangeable between a utility function which has a seat movable up and down and has casters as feet at the end of legs connected with the seat through an upstanding member. In a second use, the casters are replaced by feet to give stabilit... | 05/22/2007 |
| 7168728 | Stroller foldable in three A stroller is provided with a handle having a horizontal middle part and two side pipes. The two side pipes are connected to the horizontal middle part by gear trains so as to be turnable about axes perpendicular to an axis of the horizontal middle part, respectivel... | 01/30/2007 |
| 7108004 | Mobility aiding device A mobility aiding device, such as a walker, a wheelchair, a transport chair, a shower seat or a rollator, are used in providing support to injured or ailing persons during activity or movement. A solid two-piece seating platform is provided with a structural support... | 09/19/2006 |
| 7073801 | Foldable mobility support device A mobility device includes at least a first front leg and at least a first rear leg connected to the first front leg. The first rear leg includes an upper member having a first end and a second end and a lower member having a first end and a second end. The first en... | 07/11/2006 |
| 7052082 | Pedicure basin for pedicure station and salon chair A salon chair includes a pedicure basin positioned between the foot of the chair and a front step opposite the foot of the chair. The pedicure basin includes a bottom floor, a perforated stepping surface above the bottom floor of the basin, and a nozzle assembly dis... | 05/30/2006 |
| 7040637 | Inwardly folding rollator with an upwardly pivotable seat A rollator with a tubular frame assembly includes a pair of U-shaped side frames connected by a front brace. Each side frame has a cross bar that extends between front legs and back legs of the frame. The side frames are pivotably attached to the front brace so that... | 05/09/2006 |
| 7017924 | Foldable baby walker A child's walker includes a pair of oppositely spaced A-frames provided with wheels conjoined to a lower portion thereof. Each A-frame has an apex centrally positioned above the wheels and pivotal about the apexes. A semi-spherical seat section is nested intermediat... | 03/28/2006 |
| 6976685 | Wheeled car seat A wheeled car seat sized to hold an infant or young toddler in the seat of an automobile that can also be converted to a wheeled stroller is disclosed herein. The wheeled car seat is made from materials to protect the occupant while at the same time keeping the weig... | 12/20/2005 |
| 6974142 | Vehicle to assist walking A vehicle which has a function to help a person walk and a function that a helper can move a person, comprises a frame (1) extending around a body of a user for supporting the body of the user when the user walks using the vehicle, wheels (7,9) mounted... | 12/13/2005 |
| 6860281 | Sitting and standing assist apparatus A sitting and standing assisting apparatus is described in which a platform has a front edge and opposed side edges joined to the front edge. An assist frame is mounted to the platform with an upright leg part adjacent each side edge. The upright leg parts are space... | 03/01/2005 |
| 6651994 | Walker with movable carry basket A wheeled walker having a moveable carry basket. The walker has a carry basket mounted between the front leg members. The mounting arrangement permits the basket to be moved between a first position in which the basket projects forward of the front leg me... | 11/25/2003 |
| 6401738 | Collapsible power gait walker including a climbing and declining mechanism An orthopedic walker having a rear crossbar which is pivotally mounted to two side frames allowing for sequential movement of one side frame forward relative to the other to facilitate walking. A pair of wrist guards are positioned at the top of each fram... | 06/11/2002 |
| 6371142 | Seated walker A seated walker has a frame that includes pair of inverted U-shaped side members and a cross bar. A seat is pivotally affixed to the frame and is movable between an upper position where the seat is generally vertical and out of the way of the user and a l... | 04/16/2002 |
| 6302126 | Attachment for a walker An attachment for a walker which may be used as a seat and has a convenient storage pouch. The attachment is formed from a single sheet of fabric having a pair of pockets formed at each of the opposing ends. A first one of the pockets conforms to the shap... | 10/16/2001 |
| 6296259 | Child safety seat stroller A integral carry-on child safety seat and stroller. The safety seat includes a base frame having wheels which is supported by collapsible folding members which may be nested in the housing of the safety seat for use in a vehicle whereby the base frame and... | 10/02/2001 |
| 6145524 | Stair climbing walker A walker for assistant people ambulating, particularly on stairs climbing, is a free standing frame comprising a pair of reverse U-shaped frame members that are interconnected by braces at its sides and front, having the walker open on its rear side to al... | 11/14/2000 |
| 5904168 | Walker with an expandable seat A walker having an expandable seat adapted to accommodate users of varying body sizes to enter the walker and get in and out of the seat. The walker comprises a front cross bar having two tubular ends, and two side frames rotatably connected to each of th... | 05/18/1999 |
| 5882067 | Rigid seat for folding invalid walker A foldable seat for a foldable invalid walker where the seat folds flush against the side of the walker when the user is not using the seat.... | 03/16/1999 |
| 5862825 | Walker A collapsible walker that includes a front frame, a pair of side frames, and a pair of levers. The front frame has a pair of skewed surfaces. The pair of side frames are hingedly attached to the front frame and are parallel thereto when the collapsible wa... | 01/26/1999 |
| 5839706 | Folding collapsible stand mounting structure for a baby walker A folding collapsible stand mounting structure including a pair of parallel locating plates raised from a bottom side of a wheel-equipped base frame of a baby walker within a bottom chamber, each locating plate having a first locating notch and a second l... | 11/24/1998 |
| 5823613 | Circular walker A circular walker has a base seat, a plurality of support legs, and an annular holder. The base seat has a disk plate, an annular wall surrounding the disk plate, an annular flange formed on the annular wall, an annular slide rail formed in the base seat,... | 10/20/1998 |
| 5732961 | Baby walker training vehicle with floor engaging frame A baby walker training vehicle is comprised of a seat secured elevated by a circumferential frame assembly which is supported on casters secured at predetermined positions thereunder. The frame assembly has a top, an intermediate and a lower rigid circumf... | 03/31/1998 |
| 5664266 | Combination patient transporter chair or commode A combination patient transporter and chair, comprising a base frame extending in a horizontal plane and having a front and rear portion. Wheels are mounted on the base, and a vertically adjustable first post is rigidly connected to the base frame, spaced... | 09/09/1997 |
| 5642748 | Walker tray A pivoting tray is provided for a walker. A pair of link arms disposed on each side of the tray provide for ease of movement between a first, operative position disposed between side frame assemblies of the walker, to a second, storage position generally ... | 07/01/1997 |
| 5564724 | Height adjustable baby walker with a base attached positioning device A positioning device for a baby walker includes two linking rods each rotatably mounted on a base portion of the baby walker. Two pairs of legs, each pair is fixedly mounted around first and second ends of a corresponding one of the two linking rods to ro... | 10/15/1996 |
| 5441289 | Convertible walker/vehicle for a child A walker/vehicle for a child includes a U-shape chassis member which is movably supported on a plurality of wheels and a frame member including spaced, transversely extending, seat and handle bar portions and a pair of side connector portions extending th... | 08/15/1995 |
| 5417472 | Arrangement in a wheeled appliance A walker or rollator has a first frame section (1) fitted with handles (6) and pivotally connected to a second frame section (2) such that the rollator can be collapsed. Stays (9, 11) extend between the frame sections (1, 2) and are pivotally secured in e... | 05/23/1995 |
| 5353824 | Bifold seat for folding walker An improved folding seat which can be attached to many different designs of walkers including rigid types and foldable walkers including a folding walker having a frame consisting of a left side A-frame and a right side A-frame with each side A-frame havi... | 10/11/1994 |
| 5320122 | Combined walker and wheelchair A device for supporting a person while standing or walking or sitting having a frame and a seat assembly. The frame supports the person while walking or standing while the seat assembly allows him to sit. The seat assembly is slidably attached to the fram... | 06/14/1994 |
| 5224721 | Walker having folding and pivoting seat apparatus An improved walker in which a gate which is pivoted on one rear leg for movement from an open position to a closed position at which it engages a fitting carried by the other rear leg, supports a seat for pivotal movement from a raised inoperative positio... | 07/06/1993 |
| 5148559 | Patient conveyance device A patient conveyance device for transporting a patient between first and second locations. The patient conveyance device includes a frame having a first side, a second side, and a front joining the front ends of the first and second sides to one another; ... | 09/22/1992 |
| 5040556 | Walker An improved walker for a handicapped and convalescent person is provided and consists of a pivotally segmented top rail member, a pivotally segmented larger base member with a plurality of ground engaging casters, and a plurality of legs between the top r... | 08/20/1991 |
| 5031899 | Height adjustment apparatus for infant walk support A height adjustment for infant walk support comprises a base mounted on casters, a table top having an opening surrounded with a perimeter and a pair of crossed bars each of which is pivoted at the middle. The crossed bars have respective ends articulated... | 07/16/1991 |
| 5013032 | Child walker-trainer This invention relates to a child walker-trainer. The walker-trainer consists of a frame preferably in the form of a push toy. At least three wheels are mounted to the frame. At least one of the wheels is mounted axially to the frame to form a rear wheel ... | 05/07/1991 |
| 4953851 | Safety mobilizer walker A safety mobilizer walker is provided and consists of a curved arm member hinged at one end to a C-shaped rim member and can be secured at free end in a closed position to the rim member forming an O-shaped configuration. Four vertical support legs are sp... | 09/04/1990 |
