...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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 |
| 6341672 | Braking device for a stroller The present invention relates to a braking device for a stroller which provides the braking function on both rear wheels synchronously. The present invention utilizes a pedal which can swing left and right to carry a rotary cam mechanism. Then the pedal w... | 01/29/2002 |
| 6308805 | Stroller having a brake device A stroller with a brake device which has a mounting seat mounted between two upright rear rods of the stroller. An operating member has a slidable mounting portion mounted slidably on the mounting seat, an operating portion, and a downward extension which... | 10/30/2001 |
| 6298950 | Steering roller The invention concerns a steering roller having a fork with two legs being spaced apart and a cover, including a brake shoe actuated by a spring loaded pin acting in conjunction with a Bowden cable.... | 10/09/2001 |
| 6298949 | Safety brake device for infant stroller A safety brake device for a stroller is disclosed. The brake device will automatically preclude the movement of the stroller when the user releases the brake handle. The brake handle is movably mounted to the stroller for being pushed down during manual p... | 10/09/2001 |
| 6286630 | Shopping cart brake assembly A shopping cart brake assembly for securing a shopping cart in place includes a cart that has at least one leg. A wheel is coupled to a distal end of the leg. A brake member extends from a hollow lower portion of the leg. A brake pad is coupled to the bra... | 09/11/2001 |
| 6260867 | Child walker The present invention relates to a child walker, which utilizes a circular base member and a specially designed moving device to provide the functions of tipping preventing and auto-braking. By these designs, the child walker can prevent from tipping when... | 07/17/2001 |
| 6170615 | Braking device of a three wheel baby car A braking device of a three wheel baby car is disclosed. When a moving baby car is desired to be braked, the user only needs to move the protrusion of the braking device between the two rear wheel so as to drive the ejecting notches on the edge of long ax... | 01/09/2001 |
| 6152266 | Braking power modulator for a bicycle A braking power modulator is provided for a bicycle brake to modulate a braking power corresponding to a stroke of an inner wire of the brake cable. The braking power modulator is mounted midway along a brake cable for the bicycle brake. The braking power... | 11/28/2000 |
| 6152476 | Folding collapsible baby stroller A folding collapsible baby stroller, which includes a front wheel frame holding a front wheel, a rear wheel frame holding a pair of rear wheels, a handlebar pivoted to the front wheel frame and the rear wheel frame, a seat frame coupled between the front ... | 11/28/2000 |
| 6142261 | Reverse-preventing structure for a baby walker A reverse-prevent structure for a baby walker includes several slide-preventing strips, a moving wheel and a reverse-preventing wheel. The characteristic of the present invention lies in the reverse-preventing wheel, which is composed by an inner tray and... | 11/07/2000 |
| 6142264 | Brake device for children's vehicle The present invention provides a brake device for a children's vehicle which overcomes the drawbacks of a conventional brake device that causes different braking force when the wheel rotating in different directions. The brake device of the present invent... | 11/07/2000 |
| 6105732 | Positive lock parking brake assembly A parking brake assembly for a motor vehicle includes a lever acting against a brake shoe to urge the brake shoe into contact with a brake drum. The parking brake assembly includes a clasp pivotally mounted to the lever. The clasp includes a plate portion... | 08/22/2000 |
| 6102167 | Brake device for a stroller A brake device for braking a stroller, which has an axle and a wheel mounted rotatably thereon, includes a support post secured relative to and extending uprightly from the rear axle, and a mounting frame disposed on the support post and extending beyond ... | 08/15/2000 |
| 6022042 | Stroller having a brake assembly A stroller has a frame, a plurality of wheels, and brake assembly. The brake assembly includes a mounting member fixedly disposed on the frame, the mounting member having cam surface with a first cam portion and a second cam portion; a brake member dispos... | 02/08/2000 |
| 5927441 | Braking device for trolley A device for trolley of the type which is provided with four mounting brackets and each of which is mounted with a caster socket. Each caster socket is rotationally mounted with a caster. The trolley frame is further provided with a pair of hand grips at ... | 07/27/1999 |
| 5813681 | Child walker An improved child walker with a variety of safety features is disclosed. The child walker preferably includes three rolling supports which are stable and tip resistant in a wide variety of circumstances. The child walker provides for braking when one of t... | 09/29/1998 |
| 5765665 | Brake assembly for simultaneously holding a pair of wheels The present application relates to a brake assembly for simultaneously holding a pair of wheels, which is used in, for example, the rear wheels of a stroller, wherein the two rear wheels are each provided with a pivotal block having a protruding brake mem... | 06/16/1998 |
| 5713585 | Safety brake stroller A stroller for precluding motion of the stroller absent an attendant walking therebehind. The inventive device includes a stroller having a plurality of wheels. A brake handle is movably mounted to the push handle of the stroller for being grasped during ... | 02/03/1998 |
| 5669624 | Stroller A three-wheeled collapsible stroller which can be used on terrain that is more bumpy or uneven than the smooth terrain suitable for a conventional small-wheeled stroller, but that is also more maneuverable than a conventional three-wheeled "jogging stroll... | 09/23/1997 |
| 5601297 | Universal infant carrier cart An adjustable, clamping infant carrier support frame that can be used as part of a stroller to provide for quick clamping of infant carriers of different shapes and sizes. The clamping infant carrier support frame comprises a clamping support frame with o... | 02/11/1997 |
| 5590896 | Stroller A three-wheeled collapsible stroller which can be used on terrain that is more bumpy or uneven than the smooth terrain suitable for a conventional small-wheeled stroller, but that is also more maneuverable than a conventional three-wheeled "jogging stroll... | 01/07/1997 |
| 5586622 | Brake of a baby's walker This invention is a brake for a baby's walker. The brake's friction with the floor is increased by a slide-resisting piece attached to the braking support. It prevents the walker from sliding when the brake is against the ground. The supporting pole of th... | 12/24/1996 |
| 5460399 | Baby stroller with park brake An all-terrain stroller having a pair of rear wheels, each having a receiver fixedly attached thereto for rotation therewith. The receiver has a plurality of circumferentially distributed receiver openings which open inward toward the opposite rear wheel.... | 10/24/1995 |
| 5456336 | Wheel brake for shopping carts A wheel brake assembly for shopping carts is characterized by a hub adapted for rotation about an axis, a coil spring coaxially mounted on the hub, and a pair of annular disks coaxially mounted on the spring. One of the disks is stationary and has one end... | 10/10/1995 |
| 5370408 | Baby stroller or baby carriage brake systems An improved brake system for wheeled baby carriers, including baby strollers and baby carriages, whereby when the carrier is at rest and not being pushed by an attendant person, the wheels of the carrier are automatically locked so that accidental rolling... | 12/06/1994 |
| 5346039 | Wheelchair brake A wheelchair brake includes a pressing lever having a free end which pivots bout a first axis to make braking contact with a wheelchair wheel. The pressing lever is normally urged into a neutral position away from the wheel by an elastic, spring-like membe... | 09/13/1994 |
| 5193833 | Bicycle front suspension, steering & braking system The invention is a bicycle front assembly in which suspension is provided by a pair of telescoping tubes having a plurality of elastic cells of different stiffnesses in their hollow interior. Steering geometry adjustment is provided by connecting the bott... | 03/16/1993 |
| 4997066 | Wheel-locking device, in particular for a pram Wheel-locking device, in particular for a pram, which includes at least one wheel unit (4) and a wheel-locking member capable of being displaced substantially parallel to the axle of the wheel and of coming into contact with the wheel rim in order to lock... | 03/05/1991 |
| 4953667 | Wheel braking device, particularly for a baby carriage The wheel braking device comprises a chassis mounted by a suspension on an axle common to a pair of wheels and a brake member operated by a brake pedal and adapted to brake the rotation of at least one wheel. The brake pedal is mounted for rotation with t... | 09/04/1990 |
| 4930605 | Brake apparatus with blind cable installing means A parking brake assembly of the blind-cable-connection type including a backing plate containing an opening, a helical guide spring arranged to guide a flexible resilient inner cable member toward a ramp surface on a parking brake lever for the blind conn... | 06/05/1990 |
| 4895224 | Brake device for bicycles In a brake device for bicycles, a handlebar is provided at each end with a cylindrical grip member which is connected with an inner wire of a brake cable having an outer wire fixed to said handle bar, and the brake cable is provided with a toggle mechanis... | 01/23/1990 |
| 4834403 | Combined infant car-seat and stroller A bi-directionally convertible infant car-seat/stroller in which the conversion is effected by operating a single pushbutton which is mechanically coupled to a pair of pawls on opposite sides of the car-seat/stroller, such pawls engaging respective detent... | 05/30/1989 |
| 4714141 | Baby carriage wheel stopping device A wheel stopping device for a baby carriage has a a pair of base members secured to the rear legs for rotatably supporting the rear wheels. A lever support (5) is journalled at (6) to at least one base member. A brake operating lever (7) is journalled at ... | 12/22/1987 |
| 4618033 | Wheel stopping device Two sets of rear wheels (9, 10 and 11, 12) have ribs (66, 67, 167) adapted to be engaged by a respective engaging member (57, 157) to establish a wheel stopped state. The engaging member (57, 157) are moved by the turning of their respective engaging leve... | 10/21/1986 |
| 4567964 | Wheel stopping device Wheels (11, 11a) which are rotatably attached, for example, to the two rear legs (3, 3a) of a baby carriage, are brought into a stopped or locked state or the rotation of the wheels is permitted by an operation of a single operating member (25). Wheel sto... | 02/04/1986 |
| 4470610 | Children's safety pull toy A children's safety pull toy is shown having a frame member upon which is mounted a single fixed axle having a pair of wheels freely rotatable thereon for movement. A seat unit of sufficient size for one child to ride therein is mounted to said frame memb... | 09/11/1984 |
| 4385769 | Invalid support chair structure A multiple purpose wheel chair having a lower wheeled carriage and an upper invalid support chair detachable from the carriage for manually transporting and supporting an invalid in bed or for being bathed or for other purposes.... | 05/31/1983 |