Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 6446411 | Reinforced pole with apparatus and method for anchoring A pole that is reinforced by a hardening compound applied to its surface, preferably in vertical strips, and an apparatus and method of anchoring the pole or another upright object. In a first preferred embodiment, the pole is welded to a base plate, with... | 09/10/2002 |
| 6385916 | Hurricane reinforcement device A building aperture cover reinforcing device includes a support post having a first end spaced apart from a second end by a middle portion. Engagement pins extend from each end of the post, and linking hooks extend from the middle portion of the post. An ... | 05/14/2002 |
| 6282861 | Reinforced pole with apparatus and method for anchoring A pole, such as for a parking meter, that is reinforced by a hardening compound applied to its surface, preferably in vertical strips, to prevent theft, and a method of anchoring the pole or other upright object. The hardening compound is preferably a sol... | 09/04/2001 |
| 6276103 | Cover panel brace for partition systems A partition includes at least two vertical posts with upper and lower beams having opposite ends thereof interconnecting the vertical posts to define when in an assembled condition, a rigid panel frame having a substantially open interior. The panel frame... | 08/21/2001 |
| 5701714 | Wrought iron grating assembly A grille-type guard system, in particular a wrought iron grating assembly, includes a plurality of longitudinal bars in spaced-apart disposition, and a plurality of crossbars which are connected to the longitudinal bars at crossing points. The crossbars a... | 12/30/1997 |
| 5600931 | Structural beam for supporting and reinforcing a structure A bar construction comprising a generally trapezoidal and open cross-sectional configuration which includes a center-flange (6), two webs (7) which embrace the center-flange, and side-flanges (8) which extend outwardly from a respective side of the bar an... | 02/11/1997 |
| 4669239 | Security bars and barrier grids incorporating same A barrier grid, in the form of a detention window, as employed in jail cells, or the like, is described. It is characterized by security bars which comprise and outer tube and a central core member extending lengthwise thereof. The tubes of the bars are s... | 06/02/1987 |
| 4598508 | Device for securing building shafts against forcible entry or passage A device for securing the shafts of buildings, for example light shafts, against forcible intrusion or passage. The device includes at least one hollow blocking bar which spans the shaft transversely and the two ends of which are held in respective anchor... | 07/08/1986 |
| 4441299 | Metallic security bar system for window and patio doors An improved metallic security bar system of the type used for windows or patio doors, for improving appearance and feel and for retarding condensation and rust includes an easily installed wooden covering over the metal parts; channel-shaped wooden member... | 04/10/1984 |
| 4395861 | Security grid for lighting shafts and the like A security grid for an opening is provided which includes at least two support members fixed on opposite side walls of the opening. Each support member is a hollow rectangular solid. A plurality of tube members extend between and are received in the suppo... | 08/02/1983 |
| 4077167 | Security window unit This specification discloses a secure yet aesthetic window unit which has particular applicability to detention buildings such as prisons, jails, cell blocks, penitentiaries, asylums and similar building structures and which is, for all practical purposes... | 03/07/1978 |
