In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7966798 | Device for stretching a transmission chain Device for stretching a transmission chain closed in itself and comprising pairs of elongated rocker elements mutually coupled by links, said rocker elements being destined for a torque transferring cooperation with the pulley sheaves of a pulley sheave transmission... | 06/28/2011 |
| 7937925 | Plate-link chain A drive chain suitable for use in a continuously variable transmission of a motor vehicle, the transmission having two pairs of spaced drive members about which the chain passes to transfer torque from one drive member to the other. The chain includes a plurality of... | 05/10/2011 |
| 7882689 | Method of manufacturing power transmission chain and pretension load device used in manufacture of power transmission chain In the state where plural sheets of link plates which are single parts are laminated, tension for widening a distance between through-holes is loaded by a pair of pins which are inserted through the through-holes of the link plates so as to load pretension serving a... | 02/08/2011 |
| 7757473 | Manufacture method of power transmission chain and a power-transmission-chain manufacturing apparatus employed by the manufacture method Manufacture method and manufacturing apparatus for power transmission chain according to the invention are adapted to accomplish exact positioning of pin members and link plates. This permits the pin members to be positively press-inserted into pin holes of the link... | 07/20/2010 |
| 7669401 | Method and device for producing a chain The invention relates to a method and device for producing a chain composed of chain links and of connecting elements. According to the invention, the chain can be produced in an essentially continuous manner whereby largely eliminating the need to make separating c... | 03/02/2010 |
| 7594385 | Method of assembling a metal bracelet The present invention relates to a method of assembling a metal bracelet (1) comprising two rows (2, 3) of outer elements assembled in pairs by pins (5) forming rigid links and at least one row (4) of intermediate elements mounted on the ... | 09/29/2009 |
| 7546725 | Silent chain Link plates of a silent chain are produced by first shaving the inner surfaces of the connecting pin holes, the sprocket tooth-engaging surfaces, and the backs of the link plates, and then forming dimples on those surfaces by shot-peening. ... | 06/16/2009 |
| 7441396 | Manufacture method of power transmission chain and pin-retainer jig A method of manufacturing of power transmission chain 1 by interconnecting plural link plates 2 with pins 3. Individual pin pairs 3 are arranged and temporarily fixed to places. The link plates 2 are sequentially stacked in layers ... | 10/28/2008 |
| 7343728 | Chain tool A tool for aiding master link removal from a chain. The master link includes two pins and a clip with two ends extending from one pin to the other. The chain includes plates, pins, and rollers. The chain has a longitudinal direction along the length of the chain. Th... | 03/18/2008 |
| 7343729 | Simulated chains with flexible sections Methods and apparatus are provided for cost effectively forming jewelry chains that simulate the appearance of particular types of conventional chain using substantially rigid sections. The rigid sections are interconnected by conventionally formed flexible sections... | 03/18/2008 |
| 7340878 | Method of forming of jewelry with multiple links A method of forming a jewelry product includes forming an initial partially formed chain having a plurality of portions which are displaceable relative to one another, and a strand of wire that retains the portions together but does not limit their displacement. The... | 03/11/2008 |
| 7338138 | Link and producing method of the same A link has link connecting bores (15) and (16) at both ends thereof and a wear rail (13) disposed between the upper portions of the link connecting bores (15) and (16). Portions near the ends of the wear rail (13) are design... | 03/04/2008 |
| 7310934 | Method of making one-way chain One-way chain for an aircraft tie-down, as well as a method of making one-way chain. The method preferably includes the steps of providing an unmodified welded chain having a plurality of welded links; feeding the unmodified chain into an automated shaping machine c... | 12/25/2007 |
| 7299532 | Method for the creation of clearance holes A method to join different materials through the creation of holes which allow entry of stay bolts is described. The method includes making slots on the plane of any material, the depth of these slots being equal to half the thickness of the plane, plus the length o... | 11/27/2007 |
| 7237375 | Investment cast, stainless steel chain link and casting process therefor An investment cast, stainless steel chain link is provided for chains used in water and wastewater treatment. The chain link comprises a pair of spaced apart, elongated sidebars having forward ends and rearward ends. The forward ends are spread apart and are provide... | 07/03/2007 |
| 7225760 | Tethering stakes Tethering stakes of the nature intended to be pounded flush with or below ground level. Certain of the tethering stakes include a cap on the pounding end which is adapted for ease of placement and release of a tethering line. Accordingly, the tethering line can be r... | 06/05/2007 |
| 7216472 | Guiding shaft structure for chain connector A guiding shaft structure for a chain connector includes a black shaft and a guiding bolt. The black shaft comprises a passage with a threaded section therein and a first protruding ring, a second protruding ring and a third protruding ring on an outer surface there... | 05/15/2007 |
| 7143571 | Method of forming chain links Several methods of forming links for use with the creation of rope chains is disclosed, whereby the outer peripheries of such links are contoured prior to assembly into rope chains. In one embodiment, the wire used in the formation of intertwinable links is contoure... | 12/05/2006 |
| 7140173 | Method and device for assembling an endless chain, in particular a transmission chain A method as well as a device for assembling a transmission chain made up of sets of two elongated elements which lie with their long sides against each other and are coupled in pairs to each other by link plates with openings of which chain one supports the sets in ... | 11/28/2006 |
| 7131258 | Device for closing a chain, particularly a bicycle chain Device for closing a chain, particularly a bicycle chain, comprising a first and a second pair of end outer plates connected by at least one pair of inner plates, a pair of rivets so engaging a pair of end holes of the first and the second pair of outer plates and t... | 11/07/2006 |
| 7111447 | Method of forming jewelry articles A method of forming jewelry articles comprises the step of fabricating sheets of jewelry article halves, bringing such sheets together, fastening the articles halves together and separating the individual jewelry articles from the sheets by die punching or the like.... | 09/26/2006 |
| 7104041 | Jewelry article with double-tier diamond cut surface A jewelry piece made of metal and with a textured surface. The textured surface has: a first series of substantially parallel grooves made by a process of diamond-cutting the surface of the jewelry piece, the grooves having a depth, and a plurality of wells made by ... | 09/12/2006 |
| 7082747 | Chain connecting pin extracting apparatus A chain connecting pin extracting apparatus comprises a main body; a pin extractor support supported by the main body; and a pin extractor supported by the pin extractor support for movement in a direction of a pin extractor axis defined by the pin extractor. The pi... | 08/01/2006 |
| 7082722 | Method and apparatus for making an elongate spindle member of chain links for transfer of pressure and tensile loads An elongate spindle member having rigidity and stability against pressure and tensile loads as well as bending and torsional loads is made by winding-up a plurality of mutually interlocking chain links (1, 12), during axial advancement of the chain links, int... | 08/01/2006 |
| 7047721 | Jewelry rope chain link element and methods of manufacture Rope chain constructed of an assembly of link elements and a manufacturing process to make such link elements, each link element exhibiting a unique visual property, such as coloration, surface texture, reflectivity, design feature or characteristic, shape, or other... | 05/23/2006 |
| 7040080 | Track link production method and track link produced by the same There are proposed a track link production method capable of providing markedly improved wear life with good cost performance and a track link produced by this method. To this end, the track link production method includes a heat treatment process (Steps 4, 5... | 05/09/2006 |
| 7032466 | Load bearing device including overboard indicator A load-bearing device including an overload indicator and a wire form overload indicator are provided for interconnection of load bearing connectors, preferably elongated load bearing connectors, for bearing a load. In preferred embodiments, the load bearing connect... | 04/25/2006 |
| 7007451 | Method of making a toothed chain with wear-reducing chain joints The present invention relates to a toothed chain comprising plates interconnected on chain joints, in particular tooth plates, each of the chain joints comprising a pin bolt and at least two substantially directly adjacently arranged tooth plates whose aligned joint... | 03/07/2006 |
| 7007508 | Twisted necklace/bracelet A twisted tennis bracelet or necklace is provided comprising individual elements which have male and female components, the male and female components being angularly offset with respect to each other along a longitudinal axis therethrough such that a jewelry articl... | 03/07/2006 |
| 6993841 | Process for the production of filled wire and plate strip to create bi-color ornamental items as well as similarly made items A ribbon of color A metal is combined with a thin layer of soldering alloy, bent and soldered to form a tube, it is then filled with a core of color B metal. The compound is then drawn and/or laminated until it is transformed into a long ribbon or into a wire, exter... | 02/07/2006 |
| 6994501 | Stopping point Disclosed is a stopping point comprising a connecting eye (1) used with stopping or lashing means. Said connecting eye is rotatably mounted on an anchoring screw (4) which is undetachably connected to a supporting disc (10). The base (2) ... | 02/07/2006 |
| 6968671 | Lightweight OMEGA chain and improved method of manufacture A method of manufacturing jewelry and a chain article formed therefrom that results in a product substantially lighter than its solid counterpart. A length of wire mesh or woven wire type of “fabric” having a hollow seamed wire with a non-precious core of a widt... | 11/29/2005 |
| 6966170 | Device for closing a chain, particularly a bicycle chain Device for closing a chain, particularly a bicycle chain, comprising a first and a second pair of end outer plates connected by at least one pair of inner plates, a pair of rivets so engaging a pair of end holes of the first and the second pair of outer plates and t... | 11/22/2005 |
| 6951124 | Method for making elements of a continuously variable transmission belt Notched areas are provided on the outer periphery of a flat plate in the coining process to allow material of said plate flow more easily toward the periphery during the coining process. Use of flat plate provides a more economical way of making elements with accura... | 10/04/2005 |
| 6945356 | Termination arrangement for a horizontal lifeline cable A termination arrangement for a horizontal lifeline cable (4) for use with a structure (6) includes an elongate stocking (14) of woven wire form surrounding an end section of the cable (4). The stocking (14) has a first end (22 | 09/20/2005 |
| 6918242 | Method of forming chain links Several methods of forming links are disclosed, whereby the outer peripheries of such links are contoured prior to assembly into rope chains. In one embodiment, the wire used in the formation of intertwinable links is contoured and then cut into individual, preconto... | 07/19/2005 |
| 6908065 | 3-dimensional bead process A method for weaving beads together in order to form a textured chamber comprised of woven strings of beads and products generated thereby is shown. A plurality of bead strings, referred to herein as chains, are used which are comprised of beads connected by strings... | 06/21/2005 |
| 6904746 | Method of forming chain links Several methods of forming links for use with the creation of rope chains is disclosed, whereby the outer peripheries of such links are contoured prior to assembly into rope chains. In one embodiment, the wire used in the formation of intertwinable links is contoure... | 06/14/2005 |
| 6895737 | Lightweight omega chain and improved method of manufacture A method of manufacturing jewelry and a chain article formed therefrom that results in a product substantially lighter than its solid counterpart. A length of wire mesh or woven wire type of “fabric” having a hollow seamed wire with a non-precious core of a widt... | 05/24/2005 |
| 6892521 | Slalum chain A jewelry chain section and a method of forming the same having a spiral, twisted appearance, involves the winding of a wire on a support and the controlled manipulation of such wound wire during or after removal from the support. The wound wire comprises individual... | 05/17/2005 |