Patents by Inventor John Jeremy Churchill Platt
John Jeremy Churchill Platt 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: 11431087Abstract: An antenna assembly includes a circularly polarized antenna housing configured to mount to a mounting surface. The antenna assembly also includes a vertical antenna housing having a first end proximate to the circularly polarized antenna housing, as well as a distal end extending normally from the circularly polarized antenna housing.Type: GrantFiled: October 2, 2020Date of Patent: August 30, 2022Assignee: R.A. Miller Industries, Inc.Inventors: Warren Guthrie, Eric Emens, John Jeremy Churchill Platt, Roger Cox
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Publication number: 20210021021Abstract: An antenna assembly includes a circularly polarized antenna housing configured to mount to a mounting surface. The antenna assembly also includes a vertical antenna housing having a first end proximate to the circularly polarized antenna housing, as well as a distal end extending normally from the circularly polarized antenna housing.Type: ApplicationFiled: October 2, 2020Publication date: January 21, 2021Applicant: R.A. Miller Industries, Inc.Inventors: Warren Guthrie, Eric Emens, John Jeremy Churchill Platt, Roger Cox
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Patent number: 10862198Abstract: An antenna assembly includes a circularly polarized antenna housing configured to mount to a mounting surface. The antenna assembly also includes a vertical antenna housing having a first end proximate to the circularly polarized antenna housing, as well as a distal end extending normally from the circularly polarized antenna housing.Type: GrantFiled: March 12, 2018Date of Patent: December 8, 2020Assignee: R.A. Miller Industries, Inc.Inventors: Warren Guthrie, Eric Emens, John Jeremy Churchill Platt, Roger Cox
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Publication number: 20180269565Abstract: An antenna assembly includes a circularly polarized antenna housing configured to mount to a mounting surface. The antenna assembly also includes a vertical antenna housing having a first end proximate to the circularly polarized antenna housing, as well as a distal end extending normally from the circularly polarized antenna housing.Type: ApplicationFiled: March 12, 2018Publication date: September 20, 2018Applicant: R.A. MILLER INDUSTRIES, INC.Inventors: Warren Guthrie, Eric Emens, John Jeremy Churchill Platt, Roger Cox
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Patent number: 9899733Abstract: A multi-band blade antenna with an open sleeve and slanted design housed within a blade antenna housing. The blade antenna has three resonant bands with one very high frequency (VHF) band and two ultra-high frequency (UHF) bands.Type: GrantFiled: February 10, 2012Date of Patent: February 20, 2018Assignee: R.A. MILLER INDUSTRIES, INC.Inventor: John Jeremy Churchill Platt
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Patent number: 9786990Abstract: An end fed dipole antenna on a circuit board configured to be a multiband, portable radio antenna has, among other features, an integrated diplexer for operating the antenna in multiple frequency bands.Type: GrantFiled: February 23, 2015Date of Patent: October 10, 2017Assignee: R.A. Miller Industries, Inc.Inventor: John Jeremy Churchill Platt
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Publication number: 20150244075Abstract: An end fed dipole antenna on a circuit board configured to be a multiband, portable radio antenna has, among other features, an integrated diplexer for operating the antenna in multiple frequency bands.Type: ApplicationFiled: February 23, 2015Publication date: August 27, 2015Applicant: R.A. MILLER INDUSTRIES, INC.Inventor: John Jeremy Churchill Platt
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Patent number: 9024829Abstract: A CB antenna arrangement for use in a raised roof of a truck cab enables the CB antenna to be hidden from view while maintaining good performance. An LC circuit is mounted in the space between the headliner and the raised dielectric roof and is connected to one of the metallic pillars of the truck cab. A CB antenna is connected to the LC circuit, and is mounted to and extends along the inside surface parallel to the driver's side or the passenger's side. The LC circuit is configured to block signals outside the CB frequency range, and the metallic pillar provides a ground plane for the CB antenna.Type: GrantFiled: January 7, 2013Date of Patent: May 5, 2015Assignee: R.A. Miller Industries, Inc.Inventors: John Jeremy Churchill Platt, Paul E. Miller
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Patent number: 8791871Abstract: A dipole antenna includes a circuit board with a first side and a second side, at least one dipole disposed on the circuit board comprising an upper half and a lower half, a microstrip transmission line disposed on the circuit board coupled to at least one of the upper half and lower half of the at least one dipole, and a choke element disposed on the circuit board. The choke element and the lower half of the at least one dipole form an open slot trap with a high impedance point.Type: GrantFiled: December 31, 2011Date of Patent: July 29, 2014Assignee: R.A. Miller Industries, Inc.Inventor: John Jeremy Churchill Platt
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Patent number: 8760879Abstract: The present invention provides a box-type housing for a multiplexer having a generally flat base plate, a circuit board disposed on the base plate, and at least one partition member arranged on top the circuit board to isolate components of the circuit board and to mechanically secure the circuit board to the base plate. The invention also provides a method of isolating components of a circuit board in a box-type housing for a multiplexer and a method of providing a ground connection to a base plate of a box-type housing for a multiplexer.Type: GrantFiled: March 16, 2012Date of Patent: June 24, 2014Assignee: R.A. Miller Industries, Inc.Inventor: John Jeremy Churchill Platt
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Publication number: 20120268337Abstract: A dipole antenna includes a circuit board with a first side and a second side, at least one dipole disposed on the circuit board comprising an upper half and a lower half, a microstrip transmission line disposed on the circuit board coupled to at least one of the upper half and lower half of the at least one dipole, and a choke element disposed on the circuit board. The choke element and the lower half of the at least one dipole form an open slot trap with a high impedance point.Type: ApplicationFiled: December 31, 2011Publication date: October 25, 2012Applicant: R.A. MILLER INDUSTRIES, INC.Inventor: John Jeremy Churchill Platt
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Patent number: 8130155Abstract: A marine multiband antenna array includes a nearly virtual bow tie UHF antenna and a connected VHF/FM antenna that together function as an AM antenna. A diplexer separates the AM/FM radio signals from the UHF/VHF television signals.Type: GrantFiled: May 21, 2009Date of Patent: March 6, 2012Assignee: R.A. Miller Industries, Inc.Inventors: John Jeremy Churchill Platt, Paul A. Bogdans
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Publication number: 20100013723Abstract: A marine multiband antenna array includes a nearly virtual bowtie UHF antenna and a connected VHF/FM antenna that together function as an AM antenna. A diplexer separates the AM/FM radio signals from the UHF/VHF television signals.Type: ApplicationFiled: May 21, 2009Publication date: January 21, 2010Applicant: R.A. MILLER INDUSTRIES, INC.Inventors: John Jeremy Churchill Platt, Paul A. Bogdans
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Publication number: 20090267865Abstract: A field antenna comprises an antenna assembly and an optional mast assembly. The antenna assembly can comprise two antenna portions coupled to a feedcone assembly as a single foldable unit. The mast assembly can comprise a unitary telescoping mast. The field antenna can be part of an antenna kit that can be disassembled and packed in a transit bag for storage and transport. The antenna assembly can be used as a field antenna alone, or can be selectively mounted to the mast assembly or a vehicle.Type: ApplicationFiled: April 22, 2009Publication date: October 29, 2009Applicant: R.A. MILLER INDUSTRIES, INC.Inventors: Paul E. Miller, John Jeremy Churchill Platt, Joe J. Furey, Susan Boelkins
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Patent number: 7180460Abstract: A mobile antenna includes a center-fed, broadband, dipole radiator, and a coupler assembly for mounting the dipole radiator to a mount. A power matching circuit is connected between the dipole radiator and the coupler assembly to maintain an effective balance of current distribution and impedance in conductive elements of the antenna.Type: GrantFiled: October 12, 2004Date of Patent: February 20, 2007Assignee: R. A. Miller Industries, Inc.Inventors: Paul A. Bogdans, Glen J. Seward, John Jeremy Churchill Platt
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Patent number: 7164389Abstract: A broadband antenna comprises an upper section with an open sleeve dipole radiator to receive and/or transmit signals in a high frequency band.Type: GrantFiled: October 12, 2004Date of Patent: January 16, 2007Assignee: R. A. Miller Industries, Inc.Inventor: John Jeremy Churchill Platt
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Patent number: 6791504Abstract: A tunable antenna system includes an antenna, a tuning mechanism, and a key that relates points of adjustment in the tuning mechanism to different installations of the antenna. The antenna can be tuned for a given installation by applying the key to the antenna without specialized knowledge or equipment. The system also includes a set of tunable antennas, each being tunable within a different range of electrical lengths. The number of antennas in the set is sufficient to cover a total range of electrical lengths for a given set of installations. Fewer antennas are needed to provide a tuned antenna for each installation.Type: GrantFiled: March 12, 2003Date of Patent: September 14, 2004Assignee: R. A. Miller Industries, Inc.Inventors: Paul E. Miller, Robert M. Lynas, John Jeremy Churchill Platt