Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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 |
| 4392681 | Rotating body sympathetic vibration absorber In a vibration absorber for resonance vibrations of rotating bodies, in particular rail wheels, comprising several oscillatory plates which establish a damping mass; intermediate layers of damping material separating the plates from each other; a fastener... | 07/12/1983 |
| 4364594 | Railway wheel vibration damping device A vibration damping device for a body resonant at two frequencies, is formed by a plate which can be connected to the body transversely with respect to its vibration direction. A post extends from the plate and mounts one end of an elastically flexible to... | 12/21/1982 |
| 4358148 | Damped railway wheel A vibration damping assembly for a wheel or the like that undergoes rotation is achieved by providing an annular groove in a surface of the wheel coaxial with the wheel axis. An annular metal ring formed from a channel member generally U-shaped in cross-s... | 11/09/1982 |
| 4355578 | Railway wheels and rails damping structures A system comprising a rail wheel and rail has the wheel and preferably also the rail provided with vibration dampers which absorb vibration having the frequency of the radial resonant vibration frequency of the wheel, for the purpose of preventing the for... | 10/26/1982 |
| 4353586 | Vibration damped railway wheel A vibration absorbing track wheel having one or more different natural frequencies. The wheel body has a wheel flange with one or more resonance absorbers on the wheel flange. Each resonance absorber comprises at least two tongues and an intermediate laye... | 10/12/1982 |
| 4318564 | Railway car wheel A wheel for rail vehicles with at least one disc which is connected to an axle, and with a wheel rim having a tread or surface surrounding the disc, while the rail tread in engagement with the rim tread results in contacting points of the wheel during str... | 03/09/1982 |
| 4254985 | Damping ring for rotating assemblies A vibration damping assembly for a wheel or the like that undergoes rotation is achieved by providing an annular groove in a surface of the wheel which is coaxial with the axis of the wheel. A viscoelastic damping material subject to shear deformation dur... | 03/10/1981 |
| 4212491 | Resilient flanged wheel A resilient wheel is provided comprising a hub and web having a rim mated to and resiliently bonded to the web with an elastomeric adhesive. Depending on the application the outer circumference of the rim may have a flange machined into it so that it serv... | 07/15/1980 |
| 4200326 | Reinforced railway wheels and axles An axle and wheel assembly particularly adapted for railcar usage is disclosed as having a metal-foam construction that is light in weight but of a relatively high strength. The axle includes an elongated hollow steel outer axle member and an elongated ho... | 04/29/1980 |
| 4183572 | Railway flanged wheel vibration dampening assembly The present noise damping apparatus is especially intended for damping the noise caused by wheels running on rails. For this purpose there is provided a noise screen connected to at least one surface of the rail wheel in a force transmitting, yet removabl... | 01/15/1980 |
| 3988992 | High speed railway truck A truck for a high speed rail vehicle which has a friction bearing between the car body and the truck frame so as to restrain movement of the frame about its vertical axis until the friction between the friction bearing and the truck frame has been overco... | 11/02/1976 |
| 3986747 | Resiliently flanged railway wheel A rubber shock-absorbent track wheel in which annular grooves are provided on the ring of the wheel and on the rim of the wheel disc. The grooves are formed between shoulders, and a clearance space is defined between the grooves and the shoulder. Prestres... | 10/19/1976 |
| 3980333 | Resilient railway wheel A rubber-suspended railway wheel having a highly-prestressed rubber insert embedded in facing annular grooves formed in the wheel rim and in the wheel tire and wherein, in order to restrict the extent of axial movement between the wheel tire and wheel rim... | 09/14/1976 |
| 3960400 | Lightweight railway wheel A railway wheel of lightweight construction, having a disc-like wheel body and a tire which is tension-mounted on the wheel rim, and with the wheel disc including a tangential undulating or wavelike configuration of radially extending crests and troughs. ... | 06/01/1976 |
| 3934921 | Buffer for spring-supported wheels A buffer for spring-supported wheels and a method of producing the buffer are disclosed. The buffer, which is of an elastic material, can be clamped into an annular slot formed by a wheel-rim and a wheel center-disk. The contact elements which provide the... | 01/27/1976 |
