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Dr Raj C Thiagarajan ATOA Scientific Technologies Dr Raj C Thiagarajan ATOA Scientific Technologies
Chinniah Thiagarajan, Frans Adriaansen, Bhawesh Kumar: Apparatus for connecting panels. Sabic Innovations Plastics IP, Cantor Colburn, December 13, 2011: US08074418 (26 worldwide citation)

Disclosed herein are connectors for panels. In one embodiment a panel connector comprises, a connector comprising a rib-hinging geometry, wherein the rib-hinging geometry comprises living hinges, and wherein the rib-hinging geometry is capable of expanding in area. In another embodiment, a panel ass ...


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Arnold Keller: Surgical chisel. Waldemar Link & Co, Townsend and Townsend, May 6, 1986: US04586496 (160 worldwide citation)

A surgical chisel is formed by a flexurally rigid chisel shank and a thin, elongated chisel blade fixed at its front end, which are both displaceably guided in slideways in a chisel guide, which lends the chisel blade buckling resistance.


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Todd J Christianson: Coated abrasive article, method for preparing the same, and method of using a coated abrasive article to abrade a hard workpiece. Minnesota Mining and Manfacturing Company, Gregory J Feulner, November 2, 1999: US05975988 (152 worldwide citation)

A coated abrasive having a backing and an abrasive layer coated on the first major of the backing, wherein a cross-section of the abrasive layer normal to the thickness and at a center point of the thickness has a total cross-sectional area of abrasive agglomerates which is substantially the same as ...


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Kniff Thomas J: Impacting tool with tungsten carbide insert tip. Kennametal, Crosby Melvin A, April 30, 1974: US3807804 (126 worldwide citation)

An impacting tool in which a massive hard carbide element is fitted to a steel holder which is reciprocated to drive the element against a formation to be broken. The massive carbide element can be press fitted in the steel holder or shrink fitted therein or brazed thereto and, furthermore, the carb ...


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Yoseph Bar Cohen, Stewart Sherrit: Self mountable and extractable ultrasonic/sonic anchor. The United States of America represented by the Administrator of the National Aeronautics and Space Administration, January 2, 2007: US07156189 (124 worldwide citation)

Self drilling anchors and related methods and apparatus. In one embodiment an apparatus comprises a drill bit, a hammer mechanism for hammering the drill bit in a first direction and in a second direction, and a selection mechanism for controlling whether, at a given point in time, the drill bit is ...


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Joe E Koeth, Melvin J Hoffman, Paul D Jackson: Semiconductor wafer carrier and method. IPEC Westech Systems, Harry M Weiss, June 13, 1995: US05423558 (90 worldwide citation)

An improved semiconductor wafer carrier provides gimballing motion of the wafer to dynamically align the wafer to a polishing platen. This gimballing motion is achieved by providing a conical receptacle which has a spring friction fit with a spherical button. A torque plate with spring fingers provi ...


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Takuo Arakawa, Masao Miwa: Hammer drill with a mode change-over mechanism. Makita Corporation, Lahive & Cockfield, December 1, 1998: US05842527 (87 worldwide citation)

A hammer drill has a mode change-over mechanism including a change link with a horizontally elongated slot, an eccentric pin projecting from a mode selector switch and penetrating the slot. The change link is moved vertically by rotating the mode selector switch, which in turn vertically moves a pai ...


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Wolfgang Lippacher, Reinhard Riedl: Hand-held tool with detachable tool bit chuck. Hilti Aktiengesellschaft, Toren McGeady & Associates, April 25, 1989: US04824298 (71 worldwide citation)

A hand-held tool for use as a powered drill or screw driver, has a chuck for holding a tool bit, and the chuck is replaceable without employing another tool. A conically shaped shaft section on a rotary spindle fits into a conically shaped bore in a socket section of a part of the chuck. The shaft s ...


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Patrick J Radle, Jeffrey M Zeiler, Daryl S Richards: Power tool with vibration isolated handle. Milwaukee Electric Tool, Michael Best & Friedrich, December 16, 1997: US05697456 (66 worldwide citation)

The invention provides a power tool including a tool body and a handle mounted on the tool body at an upper vibration isolation joint and a lower pivot joint. The lower joint permits pivotal movement of the handle relative to the tool body while giving an operator lateral stability and torsional con ...


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Walter Weilenmann, Nikolaus Frick, Peter Hirt: Hammer drill or chipping hammer. Hilti Aktiengesellschaft, Toren McGeady and Stanger, October 23, 1984: US04478293 (66 worldwide citation)

A hammer drill or chipping hammer includes a housing, a striking mechanism movably displaceably mounted within the housing, and a handle spring supported on the housing. To absorb vibrations generated during operation of the drill or hammer, piston-like weighted members are slidably mounted in the h ...



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