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| Number | Title | Issue Date |
| 8096432 | Elastomeric draft gear having a housing A draft gear assembly for cushioning both buff and draft dynamic impact forces being applied to a center sill member of a railway vehicle includes a housing member closed at one end and open at an opposed end, the housing member having a rear portion adjacent the cl... | 01/17/2012 |
| 7900785 | Taper under tapered plate to increase side force on the movable plate Draft gear assembly includes an angled or tapered bottom surface on a tapered plate intermediate of the inner and outer friction surfaces thereof and further includes a complimentary mating angled or tapered surface provided on a built-up portion on a third horizont... | 03/08/2011 |
| 7419145 | Friction damper A friction damper comprises a channel member including at least one friction channel and a wedge member including at least one friction wedge received by a corresponding friction channel for sliding motion along the channel relative to the channel member. Each frict... | 09/02/2008 |
| 6845720 | Conveyor shock absorber A shock absorbing tow bar for connecting between a drive trolley and a load carrying trolley of a conveyor system. The tow bar includes a pair of tubes that reciprocate relative to each other. A plunger is located within a first of the tubes and attached to a second... | 01/25/2005 |
| 6488162 | Draft gear for a reduced-slack drawbar assembly A draft gear which has a wedge, two friction shoes, two tapered wear liners, a spring seat and a spring package. The wedge has surfaces which cooperate with surfaces on each of the friction shoes forming a first selected angle of about 40 degrees to the m... | 12/03/2002 |
| 6478173 | Railroad car draft gear having a long travel A friction/elastomeric pad draft gear to cushion and absorb impacting forces on a railroad car coupler system. The friction/elastomeric pad draft gear includes a housing with a closed end and an open opposite end with a major axis extending therebetween. ... | 11/12/2002 |
| 5501347 | Variable angle friction clutch mechanism for a draft gear assembly A draft gear assembly having a variable angle friction clutch mechanism is provided. Such assembly includes a housing member having a compressible cushioning element disposed adjacent a closed end thereof. A seat is disposed between one end of the compres... | 03/26/1996 |
| 5495957 | Variable angle friction clutch mechanism for a draft gear assembly A draft gear assembly having a variable angle friction clutch mechanism is provided. Such assembly includes a housing member having a compressible cushioning element disposed adjacent a closed end thereof. A seat member is disposed between one end of the ... | 03/05/1996 |
| 5443170 | Variable angle friction clutch mechanism for a draft gear assembly A draft gear assembly having a variable angle friction clutch mechanism is provided. The assembly includes a housing member having a compressible cushioning element disposed adjacent a closed end thereof. A seat member is disposed between one end of the c... | 08/22/1995 |
| 4960215 | Friction elastomer draft gear The draft gear includes: friction elements; coil spring elements; and elastomer elements. With respect to the friction elements, three groups of friction surfaces are defined each of which create a specific angle with respect to a centerline passing down ... | 10/02/1990 |
| 4735328 | Split wedge draft gear with center friction plate The draft gear includes a single center friction plate and a pair of spaced apart friction wedges. Six major friction surfaces are defined, four of which are engaged upon contact with the follower, the other two being engaged after about one-half inch of ... | 04/05/1988 |
| 4591059 | Railroad car draft gear assembly with friction bore wear liners A draft gear assembly to cushion and absorb impacting forces on a railroad car coupler system includes a housing containing a spring package. Through a follower the spring package interacts with a set of friction shoes. The shoes are positioned in frictio... | 05/27/1986 |
| 4576295 | Draft gear for railroad car coupler system A draft gear to absorb and cushion impacting forces on a railroad car coupler system includes a spring package in an inner section of a housing of the gear. The spring package connects with a set of friction shoes carried in friction shoe seats formed in ... | 03/18/1986 |
| 4305514 | Plate-type friction draft gear A high capacity plate-type friction draft gear is disclosed for utilization with railroad cars. The draft gear has a friction clutch mechanism with a special two-piece split spring seat, so that two individual spring forces can be exerted separately again... | 12/15/1981 |
| 4304397 | Two-shoe draft gear A draft gear is described as having rubber cushion pads and a friction clutch with a wedge and two friction shoes. The housing of the draft gear is provided with strategically located openings through which bars can be passed to neutralize the spring forc... | 12/08/1981 |
| 4282979 | Force absorbing arrangement An arrangement for resilient absorption of forces, particularly for an intermediate buffer coupling of rail vehicles, comprises an elongated housing having open and closed ends, a friction element located in the region of the open end of the housing, a re... | 08/11/1981 |
| 4262887 | Friction spring unit A friction spring unit has a friction spring including a plurality of inner rings and outer rings whose conical surfaces cooperate with each other with interposition of a lubricant, and an outer casing element and an inner casing element which shield the ... | 04/21/1981 |
| 4076129 | Friction mechanism for draft gear A friction cushioning mechanism for draft gear of the combination type including a housing defining an inner or rear chamber in which is mounted a cushioning mechanism that may selectively be of the hydraulic or steel or rubber spring types, and an outer ... | 02/28/1978 |
