Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7337826 | Railway car coupler knuckle having improved bearing surface Knuckle coupler castings and methods for casting the knuckle coupler castings, where the knuckle coupler castings having enhanced bearing surfaces which may include a vertically flat surface. ... | 03/04/2008 |
| 7302994 | Method and system for manufacturing a coupler knuckle A method for manufacturing a railcar coupler knuckle includes providing a cope mold portion and a drag mold portion. The cope and drag mold portions have internal walls defining at least in part perimeter boundaries of a coupler knuckle mold cavity. The method inclu... | 12/04/2007 |
| 6488163 | Knuckle coupler pin A railroad car (18) uses a coupling system (10) to couple to other railroad cars. The coupling system includes a coupler (12), a knuckle (14), a knuckle pin (16) and a lock (30). When two railroad cars are coupled to each other, the knuckles of the two ra... | 12/03/2002 |
| 6129227 | Lightweight knuckle for a railroad car coupler A lightweight knuckle weighing substantially less than an AAR Standard Knuckle, is described for use in a railroad car coupler. This lightweight knuckle can be used, for example, to replace AAR Standard knuckle which becomes broken or otherwise damaged du... | 10/10/2000 |
| 5954212 | Lightweight knuckle for a railroad car coupler An improved lightweight knuckle is described for use in an AAR Standard E or F type railroad car coupler. The outer contouring and inner voids of the improved lightweight knuckle are radically changed without compromising the integrity or operability of t... | 09/21/1999 |
| 5736088 | Method of making a plastic knuckle pin An improved plastic knuckle pin for a coupler on a railway car and a method of making the improved plastic knuckle pin whereby the improved plastic knuckle pin has a substantially uniform material matrix and the method of making the pin increases uniformi... | 04/07/1998 |
| 5630519 | Plastic knuckle pin An improved plastic knuckle pin for a coupler on a railway car and a method of making the improved plastic knuckle pin whereby the improved plastic knuckle pin has a substantially uniform material matrix and the method of making the pin increases uniformi... | 05/20/1997 |
| 5582307 | Railway car coupler knuckle A railway car coupler includes a knuckle that is rotatable about a pivot pin. The knuckle is comprised of a tail section, a hub and a nose section. The knuckle is usually made of steel in a casting operation. The pivot pin opening in the knuckle is cylind... | 12/10/1996 |
| 5285911 | Coupler knuckle pin protector structure and stress reliever A railway vehicle coupler including a coupler body and a knuckle rotatable about a vertical axis. A stress relieving bracket extends integrally from the coupler body and engages the knuckle in bearing relationship between upper and lower pivot connections... | 02/15/1994 |
| 5145076 | Plastic knuckle pin with annular relief grooves for preventing pin failure due to fatigue A plastic knuckle pin for a coupler on a railway car which accepts bending fatigue, eliminates rust or corrosion, and reduces the coefficient of friction during opening and closing the coupler. The pin also protects the integrity of the coupler body and t... | 09/08/1992 |
| 5050751 | Railway freight car combination coupler knuckle hanger and knuckle pin holder A combination knuckle hanger and knuckle pin holder tool for holding the knuckle and knuckle pin of a railway coupler, in which the knuckle and knuckle pin may be held in position from the coupler during internal repairs. The tool has a fork shaped base p... | 09/24/1991 |
| 4976363 | Knuckle pin retainer for railway vehicle coupler Am improved railway vehicle coupler head is provided having knuckle pin retaining element which is free to fully rotate with the knuckle pin to enable continuous rotation of the knuckle pin during use. An elastic ring located within a circumferential groo... | 12/11/1990 |
| 4811854 | Knuckle structure to ensure failure at knuckle throat portion An improved knuckle design for railway couplers wherein the knuckle pin is supported midway between its ends to prevent premature failure of the pin. The kidney core which forms the hollow cavity in the throat portion of the knuckle is isolated from the c... | 03/14/1989 |
| 4645085 | Method of enhancing rigidity in a railway car coupler knuckle A railway car coupler knuckle includes integral nose, hub, and tail portions. The tail portion has a lock shelf and an associated locking face as well as pulling lugs associated therewith. A tail core support aperture in the tail portion communicates with... | 02/24/1987 |
| 4640422 | Knuckle structure to prevent knuckle pin failure in a railway coupler A knuckle for a railway coupler in which an annular knuckle pin support wall is located between upper and lower knuckle pin holes. The knuckle pin support wall in one embodiment is an annular rib and in another embodiment, a continuous wall is formed betw... | 02/03/1987 |
| 4605133 | Coupler knuckle A coupler knuckle made from cast metal and having cored sections providing exterior walls adjacent the location subject to stress in use. These wall sections are formed in such a manner as to withstand the stresses.... | 08/12/1986 |
