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System for magnetically attaching templeless eyewear to a person
A system of eyewear that eliminates the need for hinges on the frames of the eyewear.
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| Number | Title | Issue Date |
| 7377471 | Method and system for opening and securing a railroad frog A method and system are provided for opening and securing a railroad frog. The system is provided with a body member and a plurality of attachment members, which are selectively securable with the body member. The attachment members are structurally configured to se... | 05/27/2008 |
| 7121513 | Cross frog for a set of track points, provided with an end of position-retaining device A rail switch frog (1) includes a movable frog point (5) slidingly guided within a base frame (2), which frog point is movable into abutment on the wing rails (6, 7) and laterally supported in its abutment positions by supporting elements... | 10/17/2006 |
| 6994299 | Railroad crossing apparatus having improved rail connection and improved flangeway floor geometry and method incorporating the same An improved railroad frog, and method incorporating the same, for facilitating the intersection of rail lines in a more efficient, effective, and durable manner. In one aspect the invention is a railroad frog apparatus comprising: a body having flangeways that inter... | 02/07/2006 |
| 6371418 | Curve path of a switch, and track joint using this type of curve path The invention relates to a curve path of a switch comprising switch tongues, a main track and a branch track, which curve path from the beginning of the curve path to the end of the curve path is comprised of several portions having different curvatures 1... | 04/16/2002 |
| 6340140 | Railroad frog for switch points and crossings The rigid frog for switch points and crossings with two wing rails (1, 2) and a frog point (3, 6, 4, 5) arranged therebetween, which forms with the wing rails switch openings (11) that run at an acute angle relative to each other, is characterized in that... | 01/22/2002 |
| 6296209 | Railroad switch stand A railroad switch stand for moving a pair of switch points between two rails includes a vertically disposed spindle rotating about its principal axis and terminating adjacent its lower end in a stub shaft in which the spindle has a necked section of reduc... | 10/02/2001 |
| 6286791 | Railroad spring wing frog with hold-open and shock dampening elements An improved railroad trackwork spring wing frog assembly having a selectively releasable hold-open subassembly for the spring wing rail is provided with a combined compressible shock absorber and compression spring that are functionally connected to the a... | 09/11/2001 |
| 6220553 | Railroad switch stand An improvement in a railroad switch stand of the general type in which a vertical spindle is mounted for rotation within a switch stand housing, a horizontally extending connecting rod is operatively connected at its one end to railroad switch points and ... | 04/24/2001 |
| 6164602 | Railroad frog assembly with multi-position holdback A railroad frog assembly is provided with a spring wing rail multi-position holdback subassembly that continuously retains the spring wing rail in each spring wing rail open position when activated by the wheels of a railcar traversing the frog assembly, ... | 12/26/2000 |
| 6158697 | Railroad frog assembly with latch holdback A railroad frog assembly is provided with a spring wing rail latch holdback subassembly that continuously retains the spring wing rail in a spring wing rail fully open position when activated by the wheels of a railcar traversing the frog assembly, and th... | 12/12/2000 |
| 5292091 | Operating device for railway switches, particularly for high-speed lines An operating device for railroad switches, particularly for high-speed lines. To permit more stable positioning of the blades (A1,A2) and of the frog (C) of the switch, which in high-speed lines are of considerable length, in addition to the switching act... | 03/08/1994 |
| 4982919 | Reversing device for movable parts of a railway switch In a reversing device for the movable parts of a railway switch, in which movable wing rails are, in their end positions, alternately engaging the frog and are supported in their engaging positions by supporting rods extending in the longitudinal directio... | 01/08/1991 |
| 4953814 | Railway switch comprising a frog having a movable main point and auxiliary point In a railway switch comprising a frog having a movable main and auxiliary point, the main and auxiliary point are formed by using thick-web standard rail sections and asymmetric tongue profiles of smaller height as compared with the thick-web standard rai... | 09/04/1990 |
| 4917339 | Reversing device for swivelable rails or movable frogs within the crossing area of a railway switch In a reversing device for rails which are swivelable around a swivelling axis, or for movable frogs within the crossing area of a railway switch, the swivelable rails or, respectively, the movable frogs are supported in their position being in alignment w... | 04/17/1990 |
