Patents by Inventor Rahul Mahendrakumar Gaywala
Rahul Mahendrakumar Gaywala has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11897088Abstract: The present subject matter relates to automated gemstone feeding in a gemstone processing machine. In an implementation, the gemstone processing machine has a feeding conduit unit to receive a rough gemstone affixed to a holder from a user. The feeding conduit unit delivers the holder to a base plate. An actuating arm picks the holder from the base plate and transfers the holder to a pre-defined position in the gemstone processing machine. The automated feeding mechanism is controlled by the computing device and uses low-cost hardware equipment having limited or no manual intervention. Thus, providing an apt tradeoff between the accuracy of transfer of the rough gemstone and the cost associated with the equipment used for the processing of the gemstone.Type: GrantFiled: October 16, 2018Date of Patent: February 13, 2024Assignee: Sahajanand Technologies Private LimitedInventors: Chirag Dineshchandra Oza, Munjalkumar Dhirajlal Gajjar, Rahul Mahendrakumar Gaywala
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Patent number: 11428641Abstract: Examples of gemstone verification are described herein. In one example, for processing a gemstone, pre-stored marking coordinates associated with a gemstone ID are obtained, the pre-stored marking coordinates generated during planning phase of the processing. Further, real-time marking coordinates for the gemstone to be processed are also obtained. An identity of the gemstone is verified based on a comparison of the pre-stored marking coordinates with the real-time marking coordinates. Further, information, including cutting parameters, associated with the gemstone ID of the gemstone is retrieved in response to a valid verification of the identity of the gemstone, for processing the gemstone.Type: GrantFiled: December 24, 2018Date of Patent: August 30, 2022Assignee: Sahajanand Technologies Private LimitedInventors: Munjal Dhirajlal Gajjar, Chetan Fulchandbhai Patel, Piyush Himmatbhai Vaishnani, Rahul Mahendrakumar Gaywala
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Publication number: 20210129283Abstract: The present subject matter relates to automated gemstone feeding in a gemstone processing machine. In an implementation, the gemstone processing machine has a feeding conduit unit to receive a rough gemstone affixed to a holder from a user. The feeding conduit unit delivers the holder to a base plate. An actuating arm picks the holder from the base plate and transfers the holder to a pre-defined position in the gemstone processing machine. The automated feeding mechanism is controlled by the computing device and uses low-cost hardware equipment having limited or no manual intervention. Thus, providing an apt tradeoff between the accuracy of transfer of the rough gemstone and the cost associated with the equipment used for the processing of the gemstone.Type: ApplicationFiled: October 16, 2018Publication date: May 6, 2021Inventors: Chirag Dineshchandra Oza, Dhirajlal Gajjar Munjalkumar, Rahul Mahendrakumar Gaywala
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Publication number: 20200355618Abstract: Examples of gemstone verification are described herein. In one example, for processing a gemstone, pre-stored marking coordinates associated with a gemstone ID are obtained, the pre-stored marking coordinates generated during planning phase of the processing. Further, real-time marking coordinates for the gemstone to be processed are also obtained. An identity of the gemstone is verified based on a comparison of the pre-stored marking coordinates with the real-time marking coordinates. Further, information, including cutting parameters, associated with the gemstone ID of the gemstone is retrieved in response to a valid verification of the identity of the gemstone, for processing the gemstone.Type: ApplicationFiled: December 24, 2018Publication date: November 12, 2020Inventors: Munjal Dhirajlal Gajjar, Chetan Fulchandhai Patel, Piyush Himmatbhai Vaishnani, Rahul Mahendrakumar Gaywala
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Patent number: 9962859Abstract: The present subject matter relates to an indexing unit for a gemstone processing machine. The indexing unit may include a base plate that may comprise a plurality of plates. Further, the base plate may be coupled to an indexing mechanism such that the indexing mechanism may impart rotational, translational, and tilting motion to the base plate. Further, the plurality of plates may include axially extending concentric holes in which a plurality of holders may be disposed. Further, the plurality of holes may hold the gemstone for processing. In one implementation, the plurality of holders may be coupled to one or more actuating mechanisms that may impart rotational, translational, and tilting motion to the individual holders.Type: GrantFiled: September 11, 2015Date of Patent: May 8, 2018Assignee: Sahajanand Technologies Private LimitedInventor: Rahul Mahendrakumar Gaywala
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Publication number: 20170021530Abstract: Systems and methods for gemstone processing are described herein. According to an embodiment, a gemstone processing system includes a visualization system (100) for capturing stresses in a rough gemstone (104). The visualization system (100) can include an image capturing device (102), a gemstone stage (106) being rotatable with respect to the image capturing device (102), and one or more light sources (110, 112) to illuminate the rough gemstone (104) on the gemstone stage (106).Type: ApplicationFiled: July 22, 2015Publication date: January 26, 2017Applicant: SAHAJANAND TECHNOLOGIES PRIVATE LIMITEDInventors: Rahul Mahendrakumar GAYWALA, Munjalkumar Dhirajlal GAJJAR, Chetan Fulchandbhai PATEL
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Patent number: 9321066Abstract: A drug coating apparatus (100) for coating an implant (206) with a drug is described. The drug coating apparatus (100) includes a holding unit (102) having a top collet (202-1) for holding the implant (206) from a top end of the implant (206), and a bottom collet (202-2) to hold the implant (206) from a bottom end of the implant (206). The drug coating apparatus (100) includes at least one rotary drive (115) coupled to the holding unit (102) for rotating the top collet (202-1), the bottom collet (202-2) and the implant (206), and includes a spraying unit (104) to spray-coat the drug on the implant (206).Type: GrantFiled: February 15, 2013Date of Patent: April 26, 2016Assignee: SAHAJANAND TECHNOLOGIES PRIVATE LIMITEDInventors: Rahul Mahendrakumar Gaywala, Vallabh Mohan Narola
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Publication number: 20160006929Abstract: Method(s) and apparatus(s) of counting gemstones using image processing is described. A gemstone counting apparatus (100) includes a housing (102). The housing (102) includes a tray (120) for holding a plurality of gemstones. The housing (102) further includes a vibrating mechanism to vibrate the tray (120) after a predefined time period. The vibrating mechanism arranges the plurality of gemstones in one level. Further, the housing (102) includes a middle plate (113) to hold a camera (114). The camera (114) is positioned directly above the tray (120) to capture images of the tray (120) each time the tray (120) is vibrated by the vibrating mechanism. The images are processed by a processing unit to count number of gemstones in the tray (120).Type: ApplicationFiled: October 31, 2013Publication date: January 7, 2016Inventor: Rahul Mahendrakumar GAYWALA
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Publication number: 20150375421Abstract: The present subject matter relates to an indexing unit for a gemstone processing machine. The indexing unit may include a base plate that may comprise a plurality of plates. Further, the base plate may be coupled to an indexing mechanism such that the indexing mechanism may impart rotational, translational, and tilting motion to the base plate. Further, the plurality of plates may include axially extending concentric holes in which a plurality of holders may be disposed. Further, the plurality of holes may hold the gemstone for processing. In one implementation, the plurality of holders may be coupled to one or more actuating mechanisms that may impart rotational, translational, and tilting motion to the individual holders.Type: ApplicationFiled: September 11, 2015Publication date: December 31, 2015Inventor: Rahul Mahendrakumar Gaywala
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Publication number: 20150027368Abstract: A drug coating apparatus (100) for coating an implant (206) with a drug is described. The drug coating apparatus (100) includes a holding unit (102) having a top collet (202-1) for holding the implant (206) from a top end of the implant (206), and a bottom collet (202-2) to hold the implant (206) from a bottom end of the implant (206). The drug coating apparatus (100) includes at least one rotary drive (115) coupled to the holding unit (102) for rotating the top collet (202-1), the bottom collet (202-2) and the implant (206), and includes a spraying unit (104) to spray-coat the drug on the implant (206).Type: ApplicationFiled: February 15, 2013Publication date: January 29, 2015Inventors: Rahul Mahendrakumar Gaywala, Vallabh Mohan Narola
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Publication number: 20140246006Abstract: An indexing unit of a gemstone processing machine and a method for processing gemstones is described herein. In an embodiment, the indexing unit of the gemstone processing machine includes a base plate having a plurality of axially extending holes. The base plate is mounted on a mounting shaft, and the mounting shaft is coupled to an indexing mechanism for actuating the base plate. Further, the indexing unit includes a plurality of holders. A holder is disposed in each of the plurality of axially extending holes of the base plate, and each holder is configured to hold a gemstone for processing on the gemstone processing machine.Type: ApplicationFiled: October 17, 2012Publication date: September 4, 2014Inventor: Rahul Mahendrakumar Gaywala