Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7418988 | Non-pneumatic tire A structurally supported tire includes an outer annular band, and a plurality of web spokes extending transversely across and radially inward from the annular band and anchored in a wheel or hub. The annular band may further comprise a shear layer, at least a first ... | 09/02/2008 |
| 7201194 | Non-pneumatic tire A structurally supported tire includes a ground contacting tread portion, a reinforced annular band disposed radially inward of the tread portion, and a plurality of web spokes extending transversely across and radially inward from the reinforced annular band and an... | 04/10/2007 |
| 7057120 | Shock absorbent roller thumb wheel A shock absorbing roller thumb wheel is disclosed. The shock absorbing thumb wheel includes a central hub that can be secured to an electro-mechanical switch, a rim encircling the central hub, and force dispersion spokes extending from the central hub and connected ... | 06/06/2006 |
| 7032634 | Non-pneumatic resilient tire A non-pneumatic resilient tire which derives its capacity to bear a load from laminated elements capable of supporting bending moments. The laminated elements include a stack of resilient sheets superposed and separated by a layer of rubber adhering to the latter, f... | 04/25/2006 |
| 7013939 | Compliant wheel A compliant wheel includes a compliant band and a plurality of web spokes extending transversely across and inward from the reinforced compliant band for attachment to a hub. The compliant band bends to comply with a contact surface and to envelope obstacles. The we... | 03/21/2006 |
| 6615885 | Resilient wheel structure A resilient wheel structure having a rim and a hub interconnected by spokes, wherein the rim is sufficiently stiff to distribute a load to all of the spokes, and wherein the wheel is able to absorb loads in both the radial and axial directions. The rim co... | 09/09/2003 |
| 6170544 | Nonpneumatic deformable wheel A deformable structure for a vehicle, designed to roll on an axis of rotation, including an annular internal element centered on the axis, an annular external element, flexible and appreciably inextensible, forming a tread radially arranged externally rel... | 01/09/2001 |
| 6131923 | Skate with single-blade truck, particularly with in-line wheels A skate with single-rail truck, particularly with in-line wheels, comprising a rail-shaped frame which is associable with a shoe and supports a plurality of in-line wheels, each wheel being formed by half-bodies arranged on opposite sides of the rail-shap... | 10/17/2000 |
| 5823634 | Wheel, particularly for skateboards or rollerskates Wheel, particularly for skateboards or rollerskates, including a central hub with radial spokes, and a tire which is connected to the hub and which has wings arranged in the interspaces delimited by the radial spokes and the central hub. The wings are arr... | 10/20/1998 |
| 5743316 | Dynamic steerable wheel spring A dynamic steerable spring for axially mounting for supporting a compressive load as it would experience as a vehicle wheel, the load from such vehicle being distributed being evenly transferred to a spring hub, as a replacement for a conventional pneumat... | 04/28/1998 |
| 5460213 | Multiple non-pneumatic tire and process for making it Pural non-pneumatic (NPTs) are unitarily fitted, side-by-side, on a wheel rim, forming a multiple NPT (MNPT) to carry a load by sharing the load between the side-by-side NPTs. By "unitarily" is meant that the NPTs are fitted to the rim as a whole, without... | 10/24/1995 |
| 5353853 | Supporting wheel A non-pneumatic supporting wheel includes a central part and a wheel-rim which is supported by the central part. The wheel-rim has an outer wheel-rim part which is intended to roll against an underlying surface, and an inner wheel-rim part which is locate... | 10/11/1994 |
| 5236027 | Wheel assembly The improved wheel assembly includes a hub member having a cylindrical casing with an axial bore adapted to receive the end of a wheel axle, and a plurality of threaded bolts which threadably engage conventional lug nuts; a tubeless, airless tire member h... | 08/17/1993 |
| 5223599 | Polyurethane elastomer and non-pneumatic tire fabricated therefrom A polyurethane elastomer exhibiting superior flex fatigue properties is obtained by reacting a mixture of isocyanate-terminated polyether prepolymers with at least one alkylthioaromatic amine curing agent. Optionally, the elastomer can be postcured for fu... | 06/29/1993 |
| 5139066 | Tire construction A non-pneumatic tire (10) comprising an annular body (15) of resilient construction having a radially outer peripheral portion (19) and a radially inner peripheral portion (17). A circumferential web extends between, and is connected to, the radially inne... | 08/18/1992 |
| 5050656 | Non-pneumatic tire wheel A non-pneumatic tire wheel having an annular hub with a carcass connected thereto, which carcass has C-shaped sidewalls with a plurality of circumferentially spaced slots that extend into the crown of the carcass. The crown of the tire wheel receives a tr... | 09/24/1991 |
| 4945962 | Honeycomb non-pneumatic tire with a single web on one side A side web non-pneumatic tire ("SWNPT") is integrally molded from a stiff, resilient elastomeric material with particular specifications, to form a unitary honeycomb structure bounded by integrally molded outer and inner cylindrical coaxial and coextensiv... | 08/07/1990 |
| 4921029 | Trapezoidal non-pneumatic tire with supporting and cushioning members A trapezoidal non-pneumatic tire ("TNPT") is integrally molded from a stiff, resilient elastomeric material with particular specifications, to form a unitary structure comprising outer and inner cylindrical coaxial members ("hoops"), the outer being wider... | 05/01/1990 |
| 4832098 | Non-pneumatic tire with supporting and cushioning members A non-pneumatic tire ("NPT") is integrally molded from a stiff, resilient elastomeric material with particular specifications, to form a unitary structure comprising outer and inner cylindrical coaxial and coextensive members ("hoops"). The outer hoop is ... | 05/23/1989 |
