DAVID R. RIVERA
Physician in Westerly, RI
License number
Rhode Island MD09236
Issued Date
Jul 17, 1996
Expiration Date
Jun 30, 2018
Category
Physician
Type
Allopathic Physician (MD)
Address
Address
#2020, Westerly, RI 02891
Phone
(401) 596-2020 (Work)
(401) 596-6896 (Fax)
(401) 596-6896 (Fax)
Organization information
See more information about DAVID R. RIVERA at bizstanding.comRivera David R
45 Wl St, Westerly, RI 02891
Industry:
Ophthalmology
Doing business as:
Rivera, Dr. David R
Site:
Phone:
(401) 596-2020 (Phone)
Description:
We service the entire Mystic-Westerly area with Optical services and laser surgery. We do testing for Glaucoma and other eye disease and corrective procedures. Our optical shop has the latest frames, ...
David Rafael Rivera
Categories:
Ophthalmology Physicians & Surgeons, Optometrists, Physicians & Surgeons
Open Hours:
Mon 08:00 AM-05:00 PM, Tue 08:00 AM-05:00 PM, Wed 08:00 AM-05:00 PM, ...
Specialties:
Cataracts, Diabetes, Glaucoma, ...
Areas served:
Washington
Customers served:
Residential, Commercial
Products:
Contact Lenses, Laser Surgery, Surgery
Payment options:
American Express, VISA
Additional:
MD, Complete Family Eye Care, Glaucoma & Diabetes Glasses, Contacts, Vision Care Of Westerly Optical 596-3990
Professional information
Dr. David R Rivera, Westerly RI - MD (Doctor of Medicine)
Specialties:
Ophthalmology
Address:
Vision Care Associates
45 Wells St SUITE 2020, Westerly 02891
(401) 596-2020 (Phone)
45 Wells St SUITE 2020, Westerly 02891
(401) 596-2020 (Phone)
Procedures:
Cataract Surgery, Eye Exams, Eye Procedures (Including Prescriptions For Glasses & Contacts), Glaucoma Treatment, Iol Implantation, Pterygium Surgery, Yag Laser Capsulotomy
Conditions:
Cataract, Diabetic Eye Disease, Dry Eye, Eye Conditions, Eye Disorders, Eye Trauma, Eyelid Disorders, Eyelid Growths, Glaucoma, Macular Degeneration, Pterygium
Certifications:
Ophthalmology, 1997
Awards:
Healthgrades Honor Roll
Languages:
English, Spanish
Hospitals:
Vision Care Associates
45 Wells St SUITE 2020, Westerly 02891
Westerly Hospital
25 Wells St, Westerly 02891
45 Wells St SUITE 2020, Westerly 02891
Westerly Hospital
25 Wells St, Westerly 02891
Education:
Medical School
Georgetown Univ Sch Of Med
Graduated: 1987
Brooke Army Mc
Graduated: 1988
Graduated: 1994
Georgetown Univ
Graduated: 1983
Georgetown Univ Sch Of Med
Graduated: 1987
Brooke Army Mc
Graduated: 1988
Graduated: 1994
Georgetown Univ
Graduated: 1983
David R Rivera, Westerly RI
Specialties:
Ophthalmologist
Address:
45 Wells St, Westerly, RI 02891
Education:
Georgetown University, School of Medicine - Doctor of Medicine
Brooke Army Medical Center - Residency - Ophthalmology
Brooke Army Medical Center - Residency - Ophthalmology
Board certifications:
American Board of Ophthalmology Certification in Ophthalmology
David Rivera, Westerly RI
Work:
The Morgan Building
45 Wells St, Westerly, RI 02891
45 Wells St, Westerly, RI 02891
Broadband Waveguide Pressure Window
US Patent:
5488336, Jan 30, 1996
Filed:
Aug 8, 1994
Appl. No.:
8/287026
Inventors:
David F. Rivera - Westerly RI
Thomas R. Floyd - Waterford CT
Michael J. Josypenko - Norwich CT
Thomas R. Floyd - Waterford CT
Michael J. Josypenko - Norwich CT
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01P 108
US Classification:
333252
Abstract:
A broad passband pressure barrier arrangement is provided for insertion in circular waveguide between a source and a receiver of radio frequency (RF) energy with a spatially circumferential electric field characteristic of the TE. sub. 01 mode. At least two cylindrical barrier regions are coaxially aligned and arranged symmetrically in mirror image fashion about a radial plane of the circular waveguide. The cylindrical barrier regions include at least one solid cylindrical plug region sealed in a cross-section of the circular waveguide and having a longitudinal thickness sufficient to withstand a predetermined pressure load. Each of the cylindrical barrier regions are defined by a characteristic impedance at opposing end faces thereof and a by characteristic impedance between the opposing end faces. A region-by-region impedance analysis process begins with an end face of the arrangement that is furthest from the source and is completed with an end face of the arrangement that is nearest the source. The permittivities of the barrier regions and the longitudinal thicknesses of barrier regions are optimized across the passband of interest.
Broadband Pressure Barrier For Circular Waveguide
US Patent:
5471182, Nov 28, 1995
Filed:
Aug 8, 1994
Appl. No.:
8/287023
Inventors:
David F. Rivera - Westerly RI
Thomas R. Floyd - Waterford CT
Michael J. Josypenko - Norwich CT
Thomas R. Floyd - Waterford CT
Michael J. Josypenko - Norwich CT
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01P 108
US Classification:
333252
Abstract:
A broad passband pressure barrier arrangement is provided for insertion in circular waveguide between a source and a receiver of radio frequency (RF) energy with a spatially circumferential electric field characteristic of the TE. sub. 01 mode. At least three abutting cylindrical barrier regions are coaxially aligned a arranged symmetrically in mirror image fashion about a radial plane of the circular waveguide. The cylindrical barrier regions include: at least one solid cylindrical plug region sealed in a cross-section of the circular waveguide and having a longitudinal thickness sufficient to withstand a predetermined pressure load, and at least one solid cylindrical tuning region having a radius less than that of the circular waveguide and further having a longitudinal thickness. Each of the cylindrical barrier regions are defined by a characteristic impedance at opposing end faces thereof and a by characteristic impedance between the opposing end faces. A region-by-region impedance analysis process begins with an end face of the arrangement that is furthest from the source and is completed with an end face of the arrangement that is nearest the source.
Parallel Plate Antenna
US Patent:
8228243, Jul 24, 2012
Filed:
Sep 30, 2009
Appl. No.:
12/587328
Inventors:
David F. Rivera - Westerly RI, US
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01Q 1/24, H01Q 1/48
US Classification:
343702, 343846
Abstract:
The invention as disclosed is a parallel plate antenna having a number of stacked horizontal plates and two vertical plates. Alternating ones of the horizontal plates are electrically coupled to one vertical plate such that the horizontal plates coupled to one vertical plate are interleaved with the horizontal plates coupled to the other vertical plate. The assembled antenna is mounted on a planar mounting flange. The height/width of the antenna is approximately 1/30of a wavelength at the frequency of operation.
Amphibious Antennas For Providing Near Vertical Incidence Skywave Communication
US Patent:
6999043, Feb 14, 2006
Filed:
Oct 8, 2004
Appl. No.:
10/963002
Inventors:
David F. Rivera - Westerly RI, US
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01Q 1/36
US Classification:
343895
Abstract:
An amphibious antenna for providing Near Vertical Incidence Skywave (NVIS) communication when grounded to a conductive fluid. The amphibious antenna has a support member for supporting a helix. The helix includes a first helical arm that is not insulated and grounded, when in use, through a conductive fluid into which the antenna is placed, and a second helical arm that is insulated from the conductive fluid.
Gps Antenna For Submarine Towed Buoy
US Patent:
6950075, Sep 27, 2005
Filed:
Dec 8, 2003
Appl. No.:
10/730185
Inventors:
David F. Rivera - Westerly RI, US
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01Q003/00
US Classification:
343762, 343709
Abstract:
An apparatus including a gimbal and an antenna with a hollowed frustum having a closed end and an open end. The antenna includes a feed stem at the closed end extending as an internal rod into the hollowed frustum. The opposite end of the rod connects to a receiver section extending from an edge of the open end beyond a longitudinal axis of the antenna. The antenna is supported by the gimbal attachable to a container suitable for towing. A pivot at the open end in relation to the center-of-gravity of the frustum allows a swinging arc in relation to the attached gimbal in that the frustum moves by gravity toward the axes of the gimbal such that the receiver section maintains a facing position to the force of gravity.
Antenna For Deployment From Underwater Location
US Patent:
6870508, Mar 22, 2005
Filed:
Jun 16, 2003
Appl. No.:
10/463907
Inventors:
David F. Rivera - Westerly RI, US
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01Q001/34, H01Q013/10
US Classification:
343709, 343767
Abstract:
A slotted antenna comprises a plurality of loop structures and interconnecting conductors that define a slot. The antennas can operate in a single band or over multiple bands. Flexible or inflatable substrates enable easy storage aboard an underwater craft and facilitate deployment and towing behind an underwater craft with minimal chances of detection.
Gravity-Actuated Submarine Antenna
US Patent:
6859180, Feb 22, 2005
Filed:
Sep 15, 2003
Appl. No.:
10/663059
Inventors:
David F. Rivera - Westerly RI, US
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01Q001/34, H01Q001/04
US Classification:
343709, 343719
Abstract:
An antenna including a feed tube with radial fins and circular plates at the ends of the tube and fins thereby forming a boundary for a plurality of resonant cavities. Curved plates, connected to the tube by switches of a switching system, partially encompass and subtend to the length of the tube. Interior to the tube, a transmission line from an end plate terminus conducts radio-frequency energy from the terminus to a hub and onto a switch of the switching system in which the switch is mechanically reactive to and actuated by a righting action of the curved plates when the curved plates encounter a sea state. When actuated, energy from the switch distributes to a proximate resonant cavity and curved plate to form a radiation pattern based on the difference in phase of the resonant cavity and curved plate.