Patents by Inventor Robert W. Hallock
Robert W. Hallock 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: 9291296Abstract: A device for minimizing the blowback of carbon dioxide snow. Device includes a relatively planar body that includes an aperture for receiving a discharge horn. The discharge horn capable of being connected to a source of carbon dioxide and has an open bottom end for discharging solid carbon dioxide snow through the planar body into a container. The planar body further covering and opening to the container that is to receive the solid carbon dioxide snow with the planar body preventing blowback of solid carbon dioxide snow received into the container from exiting the container. In other words, the planar body acts as a shield against blowback of carbon dioxide snow as device is depositing same in the container.Type: GrantFiled: November 6, 2012Date of Patent: March 22, 2016Assignee: Polar Tech Industries, Inc.Inventors: Robert B. Evans, Robert W. Hallock
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Publication number: 20140217108Abstract: A stand for a hand-operated carbon dioxide discharge horn. The stand can retain the hand-operated carbon dioxide discharge horn without having to be stored near the compressed gas source. The stand also includes a protrusion for storing an accessory associated with the hand-operated carbon dioxide discharge horn. Also disclosed is a kit containing a stand, hand-operated carbon dioxide discharge horn and an accessory for hand-operated discharge horn.Type: ApplicationFiled: February 6, 2013Publication date: August 7, 2014Applicant: QUARK LIMITED, LDCInventors: Donald A. Santeler, Robert W. Hallock
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Publication number: 20140124091Abstract: A device to connect to a source of carbon dioxide for dispensing dry ice. The device includes discharge horn and an adaptor which may be bent and which supports discharge horn. A bag is removably attached to discharge horn to collect the dry ice produced. An insulating sleeve may be removably disposed about discharge horn.Type: ApplicationFiled: November 6, 2012Publication date: May 8, 2014Applicant: Quark Limited, LDCInventors: Robert B. Evans, Robert W. Hallock
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Publication number: 20140124591Abstract: A device for minimizing the blowback of carbon dioxide snow. Device includes a relatively planar body that includes an aperture for receiving a discharge horn. Planar body acts as a shield against blowback of carbon dioxide snow as device is depositing same in a container.Type: ApplicationFiled: November 6, 2012Publication date: May 8, 2014Applicant: Quark Limited, LDCInventors: Robert B. Evans, Robert W. Hallock
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Publication number: 20140075983Abstract: A hand held dry ice dispensing device. The device includes a handle, which may include two hand grip portions, and a canister attached to the handle. The canister has an open bottom end wherein dry ice flows outward there from. A valve is disposed in the canister and produces a vortex discharge of CO2 gas flow which sublimes and forms dry ice. The device may also include an actuating mechanism, as well as, a safety mechanism.Type: ApplicationFiled: September 18, 2012Publication date: March 20, 2014Inventors: Robert B. Evans, Robert W. Hallock
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Patent number: 6885824Abstract: An optical component array allowing expansion of the occupied bandwidth on an existing optical transmission network without disrupting signal traffic. Wavelength selective filters (16, 30; 20, 34) and optical components, such as amplifiers (18, 32) are arrayed for use with a wavelength division multiplexed optical transmission system to transmit a selected portion of a transmission spectrum to an amplifier path and reflect the remainder of the spectrum. Wavelength selective filters and associated amplifiers are arranged in a cascade configuration with a bypass path (35, 37). Additional wavelength selective filters and amplifiers can be added in the bypass path without disrupting existing signal traffic, and such additions can provide for a remaining bypass path, thus allowing further expansion. This configuration provides an expandable amplifier array with a low initial cost.Type: GrantFiled: March 3, 2000Date of Patent: April 26, 2005Assignee: Optical Coating Laboratory, Inc.Inventors: Kevin J. Zhang, Michael A. Scobey, Robert W. Hallock
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Patent number: 6873768Abstract: The inventive coupling device enables a high interconnection density of single mode optical fiber in active and passive devises used in a fiber optic telecommunication system. The coupling device comprise a micro-lens formed by terminating a single mode optical fibers with an optimized gradient index fiber, thus avoiding a significant increase in fiber diameter. The gradient index is optimized to provide a long working distance to the minimum spot size so that efficient coupling can be achieved in a free space interconnection between either multiple single mode fibers or a single mode fiber to a transmitting or receiving device.Type: GrantFiled: March 15, 2002Date of Patent: March 29, 2005Assignee: JDS Uniphase CorporationInventors: Markus Duelli, Leland Scott Black, Robert W. Hallock, Andrew Thomas Taylor
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Patent number: 6792210Abstract: An optical component array that has essentially equal path loss for each channel routed through a switching node in a re-insertion configuration and the bypass channels. An array input carrying a plurality of optical channels is coupled to a first node input. Consistent, low transmission loss through a switching node is achieved by a single fiber-beam-fiber transition. The low transmission loss is summed with other array losses to be within 3 dB of the insertion loss of a bypass path. In a particular configuration, a routing array with three switching nodes is loss-balanced to the bypass path. In another embodiment, a multi-channel filter stub in the bypass path improves residual signal suppression when a node is switched to an add/drop configuration.Type: GrantFiled: August 23, 2000Date of Patent: September 14, 2004Assignee: Optical Coating Laboratory, Inc.Inventors: Robert W. Hallock, Michael A. Scobey
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Patent number: 6552834Abstract: Methods and apparatus for combining, adding, and/or dropping channels in optical communication systems that utilize thin film filters without the creation of deadbands, using fiber Bragg gratings and additional thin film optical filters, are described. According to one aspect of the invention, an optical filter is used to drop a wavelength range from an optical signal. Prior to the optical signal entering the optical filter, one or more fiber Bragg gratings and an optical circulator are used reflects a portion of the communications spectrum which would normally lie with the deadband region of the optical filter. According to another aspect of the present invention, an optical filter is used to combine a first optical signal and a second optical signal to form a combined optical signal. Neither the first optical signal nor the second optical signal includes channels within a deadband region of the optical filter.Type: GrantFiled: February 15, 2001Date of Patent: April 22, 2003Assignee: Corning IncorporatedInventors: Vikram Bhatia, Robert W. Hallock, James M. Harris, Edward Murphy, Derek E. Spock
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Publication number: 20030020984Abstract: Methods and apparatus for combining, adding, and/or dropping channels in optical communication systems that utilize thin film filters without the creation of deadbands, using fiber Bragg gratings and additional thin film optical filters, are described. According to one aspect of the invention, an optical filter is used to drop a wavelength range from an optical signal. Prior to the optical signal entering the optical filter, one or more fiber Bragg gratings and an optical circulator are used reflects a portion of the communications spectrum which would normally lie with the deadband region of the optical filter. According to another aspect of the present invention, an optical filter is used to combine a first optical signal and a second optical signal to form a combined optical signal. Neither the first optical signal nor the second optical signal includes channels within a deadband region of the optical filter.Type: ApplicationFiled: February 15, 2001Publication date: January 30, 2003Inventors: Vikram Bhatia, Robert W. Hallock, James M. Harris, Edward Murphy, Derek E. Spock
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Publication number: 20020141705Abstract: The inventive coupling device enables a high interconnection density of single mode optical fiber in active and passive devises used in a fiber optic telecommunication system. The coupling device comprise a micro-lens formed by terminating a single mode optical fibers with an optimized gradient index fiber, thus avoiding a significant increase in fiber diameter. The gradient index is optimized to provide a long working distance to the minimum spot size so that efficient coupling can be achieved in a free space interconnection between either multiple single mode fibers or a single mode fiber to a transmitting or receiving device.Type: ApplicationFiled: March 15, 2002Publication date: October 3, 2002Applicant: JDS Uniphase CorporationInventors: Markus Duelli, Leland Scott Black, Robert W. Hallock, Andrew Thomas Taylor
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Patent number: 6389188Abstract: An optical assembly including a wavelength selective filter (114) in combination with a collimator (112). An input port is configured to provide an optical signal containing a plurality of optical channels to the collimator and then to the wavelength selective filter. The hybrid selective optical router allows a channel or segment of adjacent channels (118) to be dropped from the optical signal with minimal signal degradation to the dropped or expressed channels. In a particular embodiment, a pair of wavelength selective routers (300, 326) are combined with a switched optical directing element (308) and other components to provide an ADD/DROP switch. In a further embodiment, an ADD/DROP switch is provided with a single movable mirror, and no fixed mirrors.Type: GrantFiled: February 23, 2000Date of Patent: May 14, 2002Assignee: Optical Coating Laboratory, Inc.Inventors: Michael A. Scobey, Robert W. Hallock
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Patent number: 6320996Abstract: An optical switch for manipulating a plurality of input optical signals incident thereupon to split one or more optical signal channels from the plurality of input optical signals. The optical switch includes an optical filter having a first reflective region and a second reflective region. One of the first and the second reflective regions is adapted with a wavelength selective filter that is capable of separating one or more optical signal channels from the input optical signal. A translating mechanism cooperates with the optical filter and is adapted to translate the optical filter in a plane substantially parallel to one of the first reflective region and the second reflective region between a first position and a second position. The translation of the optical filter causes at least one of the one or more optical signal channels to be separated from the optical signal and directed in a second direction.Type: GrantFiled: December 28, 1999Date of Patent: November 20, 2001Assignee: Optical Coating Laboratory, Inc.Inventors: Michael A. Scobey, Robert W. Hallock, Michael Cumbo, Glenn Yamamoto
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Patent number: D728749Type: GrantFiled: January 28, 2013Date of Patent: May 5, 2015Inventors: Donald A. Santeler, Robert W. Hallock
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Patent number: D728771Type: GrantFiled: January 28, 2013Date of Patent: May 5, 2015Inventors: Donald A. Santeler, Robert W. Hallock
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Patent number: D728772Type: GrantFiled: January 28, 2013Date of Patent: May 5, 2015Inventors: Donald A. Santeler, Robert W. Hallock
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Patent number: D737660Type: GrantFiled: February 6, 2013Date of Patent: September 1, 2015Assignee: Quark Limited, LDCInventors: Donald A. Santeler, Robert W. Hallock