Patents by Inventor Rajan Ramaswamy
Rajan Ramaswamy 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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Publication number: 20160152032Abstract: A method of maintaining a printer including a plurality of printheads positioned in a staggered overlapping arrangement across a width of a media feed path. Each printhead has a respective wiper and the method includes the step of moving the wipers towards respective printheads in a direction parallel to a media feed direction. The wipers for neighboring printheads are moved in opposite directions towards their respective printheads.Type: ApplicationFiled: February 3, 2016Publication date: June 2, 2016Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
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Patent number: 9283764Abstract: A modular printer includes: a media feed path defining a media feed direction and a plurality of printer modules positioned in a staggered overlapping arrangement so as to extend across a width of the media feed path. Each printer module includes a printhead and a respective maintenance sled for slidably moving towards the printhead in a direction parallel to the media feed direction. Further, the maintenance sleds for neighboring printer modules are configured to move in opposite directions towards their respective printheads.Type: GrantFiled: May 14, 2015Date of Patent: March 15, 2016Assignee: Memjet Technology LimitedInventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
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Patent number: 9242493Abstract: A printer assembly includes: a housing having referencing slots defined in opposite sidewalls; a stop positioned towards a lower end of each referencing slot; a print bar carriage slidably received within the housing; and a lift mechanism for lifting the print bar carriage relative to the housing. The print bar carriage includes: a chassis; a printhead supported by the chassis; and a pair of lugs, each lug being slidably received in a respective referencing slot of the housing. Each stop has a datum surface which defines a printing position of the print bar carriage, the print bar carriage being in the printing position when each lug is in abutting engagement with a respective datum surface.Type: GrantFiled: August 29, 2014Date of Patent: January 26, 2016Assignee: Memjet Technology Ltd.Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
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Publication number: 20150351676Abstract: A self-contained universal front-end automatic blood collection device is disclosed herein. The device collects a few micro-liters blood sample that is used for a broad range of blood analyzers. The design of the front-end closely mimics current phlebotomist practice and provides a number of unique features that ensure patient safety and sterility, improve collection efficacy, and prevent sample contamination and user cross contamination.Type: ApplicationFiled: June 10, 2014Publication date: December 10, 2015Inventors: Philippe Faurie, Diyana Ratnashanti Gunawardena, Rajan Ramaswamy, Nathan Balcom
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Patent number: 9193194Abstract: A printer assembly includes a housing having a pair of opposite first and second sidewalls, the first sidewall having a vertical guide slot; a shaft rotatably mounted between the sidewalls; pinions fixedly mounted at either end of the shaft; a print bar carriage slidably received within the housing; and a drive motor for rotating the shaft and lifting the print bar carriage. The print bar carriage includes: a chassis; first and second racks engaged with respective pinions to define a rack-and-pinion lift mechanism; first bearings rotatably mounted at a first side of the chassis, each first bearing being received in the guide slot; and a printhead supported by the chassis. During sliding movement of the print bar carriage, the first bearings travel within the guide slot and bear against opposite guide surfaces to constrain rotational movement of the print bar carriage.Type: GrantFiled: August 29, 2014Date of Patent: November 24, 2015Assignee: Memjet Technology LimitedInventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
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Publication number: 20150246546Abstract: A modular printer includes: a media feed path defining a media feed direction and a plurality of printer modules positioned in a staggered overlapping arrangement so as to extend across a width of the media feed path. Each printer module includes a printhead and a respective maintenance sled for slidably moving towards the printhead in a direction parallel to the media feed direction. Further, the maintenance sleds for neighboring printer modules are configured to move in opposite directions towards their respective printheads.Type: ApplicationFiled: May 14, 2015Publication date: September 3, 2015Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
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Patent number: 9061531Abstract: A modular printer includes: (a) a media feed path defining a media feed direction; (b) a first printer module suspended over the media feed path; and (c) a second printer module suspended over the media feed path and at least partially overlapping the first printer module in the media feed direction. The first and second printer modules have respective first and second printheads and maintenance assemblies. The first and second printheads are relatively proximal to each other with respect to the media feed direction, and the first and second maintenance assemblies are relatively distal from each other with respect to the media feed direction.Type: GrantFiled: August 29, 2014Date of Patent: June 23, 2015Assignee: Memjet Technology Ltd.Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
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Publication number: 20150138273Abstract: A printer assembly includes a housing having a pair of opposite first and second sidewalls, the first sidewall having a vertical guide slot; a shaft rotatably mounted between the sidewalls; pinions fixedly mounted at either end of the shaft; a print bar carriage slidably received within the housing; and a drive motor for rotating the shaft and lifting the print bar carriage. The print bar carriage includes: a chassis; first and second racks engaged with respective pinions to define a rack-and-pinion lift mechanism; first bearings rotatably mounted at a first side of the chassis, each first bearing being received in the guide slot; and a printhead supported by the chassis. During sliding movement of the print bar carriage, the first bearings travel within the guide slot and bear against opposite guide surfaces to constrain rotational movement of the print bar carriage.Type: ApplicationFiled: August 29, 2014Publication date: May 21, 2015Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
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Publication number: 20150138274Abstract: A modular printer includes: (a) a media feed path defining a media feed direction; (b) a first printer module suspended over the media feed path; and (c) a second printer module suspended over the media feed path and at least partially overlapping the first printer module in the media feed direction. The first and second printer modules have respective first and second printheads and maintenance assemblies. The first and second printheads are relatively proximal to each other with respect to the media feed direction, and the first and second maintenance assemblies are relatively distal from each other with respect to the media feed direction.Type: ApplicationFiled: August 29, 2014Publication date: May 21, 2015Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
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Publication number: 20150138272Abstract: A printer assembly includes: a housing having referencing slots defined in opposite sidewalls; a stop positioned towards a lower end of each referencing slot; a print bar carriage slidably received within the housing; and a lift mechanism for lifting the print bar carriage relative to the housing. The print bar carriage includes: a chassis; a printhead supported by the chassis; and a pair of lugs, each lug being slidably received in a respective referencing slot of the housing. Each stop has a datum surface which defines a printing position of the print bar carriage, the print bar carriage being in the printing position when each lug is in abutting engagement with a respective datum surface.Type: ApplicationFiled: August 29, 2014Publication date: May 21, 2015Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
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Publication number: 20130066274Abstract: A user-initiated fluid pathway connection includes: a connection hub, a piercing member, a sterile sleeve, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the piercing member is initially retained within the sterile sleeve between the connection hub and the pierceable seal of the drug container. The connection hub may include an internal aperture within the connection hub which functions as a flow restrictor and wherein a piercing member is connected to one end of the internal aperture and a fluid conduit is connected to another end of the internal aperture. A drug delivery pump with integrated sterility maintenance features includes a housing, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection as described above, a power and control system, and a drive mechanism connected to a drug container are mounted. Methods of assembly and operation are also provided.Type: ApplicationFiled: September 12, 2012Publication date: March 14, 2013Applicant: UNITRACT SYRINGE PTY LTDInventors: Sean M. O'Connor, Ian B. Hanson, Paul F. Bente, IV, Rajan Ramaswamy, Daniel S. Codd, Scott W. Beaver, Kevin L. Bokelman, John C. Love
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Patent number: 6598303Abstract: A shaving razor including a handle and three blade units each connected to the handle by a respective mounting structure that provides a pivotal connection of the blade unit to the mounting structure about a pivot axis that is transverse to the cutting edge, and also provides controlled up and down movement of the blade unit thereby permitting each said blade unit to conform to the contour of a surface being shaved. The handle has an index finger indent on a top surface, and thumb indent on the bottom surface, and is shaped to match the curvature of a user's hand.Type: GrantFiled: October 30, 2001Date of Patent: July 29, 2003Assignee: The Gillette CompanyInventors: Brian J. Bosy, Alexander T. Chenvainu, Franco Lodato, David L. Pappas, Rajan Ramaswamy
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Publication number: 20030126962Abstract: A photofinishing system and method for providing for the digital processing of a set of photographs including a digital printer, buffer, laminator and cutter, and associated methods of use for improving the accuracy of printing, processing, laminating and cutting individual photos during a digital photofinishing process.Type: ApplicationFiled: February 2, 2002Publication date: July 10, 2003Inventors: William E. Bland, Terence Chee Sung Chang, Marland Chow, David Clark, Michael H. Davis, Scott Matthew Dennis, Sergio Escobedo, David Wayne Jasinski, Daniel Steven Kline, John F. Manard, James Mason, Kerry Neal McKay, David B. Petch, David Michael Petersen, Michael Puyot, Rajan Ramaswamy, Robert John Rosati, Herb Sarnoff, James Robert Schmedake, Honsheng Zhang, Mark Steven Janosky, James Arthur Larrabee, Stephan Paul Lolacona
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Patent number: 6517200Abstract: A buffer for transporting a flexible work piece such as a printed sheet between a first and a second workstation having different operational speeds. The buffer has drive rollers arranged along a path of travel from the outlet of the first station to the inlet of the second for moving the work piece through the buffer at a constant speed that may be different than the operational speeds of the workstations. A slip clutch limits the torque applied by the drive rollers should the constant speed of the buffer be greater than the speed at which the sheet is moving through the first work station and a one-way clutch allows the drive rollers to overrun a drive shaft to permit the sheet to move into and out of the buffer at a speed greater than the constant speed.Type: GrantFiled: December 28, 2001Date of Patent: February 11, 2003Assignee: Phogenix Imaging, LLCInventors: Rajan Ramaswamy, David B. Petch
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Patent number: 6505906Abstract: A method providing for the exercise of one or more nozzles of an inkjet print head and simultaneously forming fiducial registration marks on a sheet of print medium. The exercising and forming of the fiducial registration marks both occur in the course of forming inkjet printed images on the sheet of print medium so that the prints and fiducial marks are in registry. Preferably exercising of the nozzles occurs at the beginning and end of each pass of the print head so that there are two such fiducial marks, one along each lateral edge of the image. A segment of a print medium including printed images and a fiducial mark composed of the exercise of the inkjet print head nozzles is also disclosed.Type: GrantFiled: December 28, 2001Date of Patent: January 14, 2003Assignee: Phogenix Imaging, LLCInventors: William E. Bland, Michael Puyot, Rajan Ramaswamy, Terence Chee Sung Chang
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Patent number: 6501531Abstract: A photofinishing system and method for utilizing otherwise wasted space on a sheet of photographic paper. The system includes a printer such as an ink jet printer, laser printer or digital silver-halide system for printing a set of desired images on a larger sheet of photographic paper. The system nests the images on the larger sheet so as to minimize wasted space. The amount of wasted space is determined and, if the space is large enough, the system prints an extra image in the space. The extra image can comprise a diagnostic pattern, promotional literature or an additional copy of at least one of the desired images.Type: GrantFiled: October 31, 2001Date of Patent: December 31, 2002Assignee: Phogenix Imaging, LLCInventors: Dave Clark, Michael Puyot, Rajan Ramaswamy, William Bland, John Manard
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Publication number: 20020078575Abstract: A shaving razor including a handle and three blade units each connected to the handle by a respective mounting structure that provides a pivotal connection of said blade unit to said mounting structure about a pivot axis that is transverse to the cutting edge, and also provides controlled up and down movement of said blade unit thereby permitting each said blade unit to conform to the contour of a surface being shaved. The handle has an index finger indent on a top surface, and thumb indent on the bottom surface, and is shaped to match the curvature of a user's hand.Type: ApplicationFiled: October 30, 2001Publication date: June 27, 2002Applicant: The Gillette Company, a Delaware corporationInventors: Brian J. Bosy, Alexander T. Chenvainu, Franco Lodato, David L. Pappas, Rajan Ramaswamy
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Patent number: 6379064Abstract: To assemble a printer chassis comprising three structural aluminium beams extending between two structural sideplates, the printer carriage beam is first attached to the sideplates by means of attachment points arranged along a straight line and then the printing beam and lower beam are attached to provide a vibration- and deformation-resistant chassis relative to which all the other printer components are referenced. Slider rods are mounted on the printer carriage beam by means of screws which hold the rods against the beam to keep them straight. The screws also pass through apertures in rod supports, the apertures being sized to permit longitudinal thermal movements of the rods relative to the beam.Type: GrantFiled: February 14, 2000Date of Patent: April 30, 2002Assignee: Hewlett-Packard CompanyInventors: Robert Giles, Jordi Gimenez, Rajan Ramaswamy, Emilio Angulo, Fernando Juan, Ventura Caamano, Richard H Lewis, Antoni Monclus
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Patent number: 6315469Abstract: A tool and a method for adjusting a space between a printhead in a print cartridge and a platen in an ink jet printer are disclosed. The shape of the tool mimics the shape of a print cartridge. The tool is inserted into an aperture in a carriage in place of the print cartridge whose printhead is the closest to the platen, or, if all of the printheads are equally close to the platen, then the tool may be inserted in place of any of the print cartridges. The tool includes a thin flexible member that extends toward the platen. The length of the member is such that, when the tool is properly inserted into the aperture and contacts the platen, then the printhead to platen spacing at that point on the platen would be just equal to a minimum acceptable spacing between a printhead in the same aperture and the platen.Type: GrantFiled: January 19, 2000Date of Patent: November 13, 2001Assignee: Hewlett-Packard CompanyInventors: Jose Antonio Alvarez, Rajan Ramaswamy, Emilio Angulo
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Patent number: 6308416Abstract: A shaving razor including a handle and three blade units each connected to the handle by a respective mounting structure that provides a pivotal connection of the blade unit to the mounting structure about a pivot axis that is transverse to the cutting edge, and also provides controlled up and down movement of the blade unit thereby permitting each blade unit to conform to the contour of a surface being shaved. The handle has an index finger indent on a top surface, and thumb indent on the bottom surface, and is shaped to match the curvature of a user's hand.Type: GrantFiled: December 31, 1998Date of Patent: October 30, 2001Assignee: The Gillette CompanyInventors: Brian J. Bosy, Alexander T. Chenvainu, Franco Lodato, David L. Pappas, Rajan Ramaswamy