Milton Ives - North Windham CT, US Thomas Engel - East Hampton CT, US
Assignee:
CiDRA Corporation - Wallingford CT
International Classification:
B05D001/18 B05D005/06 G02B006/22
US Classification:
427/431000, 427/163200, 385/128000
Abstract:
A method of applying a metal coating to optical element, such as an optical waveguide, comprising the steps of partially depleting stabilizers in an electroless metallic solution and immersing an optical waveguide in the electroless metallic solution to deposit the metal coating to the optical waveguide. The step of partially depleting may include creating an electroless metallic solution having a sodium hypophoshite concentration of about 25 grams per liter. The electroless metallic solution may comprise a Fidelity solution 4865A, a Fidelity solution 4865B and de-ionized water in a ratio of 1:1:18; and sodium hypophosphite crystals. Alternatively, the step of partially depleting may include placing a dummy load into the electroless metallic solution. The dummy load may be a rectangular block of metal, formed of a low carbon steel, and may have a threaded cylindrical passage therein. After depleting the stabilizers, the optical waveguide is immersed in the electroless metallic solution for a predetermined length of time depending on a desired deposition thickness.
Optical connector assemblies suitable for use in harsh environments such as down hole oil and gas well applications and methods for fabricating the same are provided. In one embodiment, an optical connector assembly suitable for down hole oil field applications comprises a first and second optical waveguide urged by a biasing member against a bracket. Each of the waveguides has at least one base surface formed on the exterior of the waveguide that is disposed against at least one of a plurality of reference surfaces of the bracket. In another embodiment, flats comprise two of the base surfaces on each optical waveguide. In another embodiment, a method of fabricating an optical connector assembly suitable for down hole oil field applications includes the steps of forming a first flat on a first optical waveguide, forming a second flat on the first optical waveguide, forming a first flat on a second optical waveguide, forming a second flat on the second optical waveguide, and biasing the first flats of the first and second optical waveguides against a first seating surface and second flats of the first and second optical waveguides against a second seating surface.
MICHAEL LAGACE - Haddam CT, US John Grunbeck - Northford CT, US Milton Ives - Bolton CT, US
International Classification:
G02B 6/38
US Classification:
385070000, 385055000
Abstract:
Optical connector assemblies suitable for use in harsh environments such as down hole oil and gas well applications and methods for fabricating the same are provided. In one embodiment, an optical connector assembly suitable for down hole oil field applications comprises a first and second optical waveguide urged by a biasing member against a bracket. Each of the waveguides has at least one base surface formed on the exterior of the waveguide that is disposed against at least one of a plurality of reference surfaces of the bracket. In another embodiment, flats comprise two of the base surfaces on each optical waveguide. In another embodiment, a method of fabricating an optical connector assembly suitable for down hole oil field applications includes the steps of forming a first flat on a first optical waveguide, forming a second flat on the first optical waveguide, forming a first flat on a second optical waveguide, forming a second flat on the second optical waveguide, and biasing the first flats of the first and second optical waveguides against a first seating surface and second flats of the first and second optical waveguides against a second seating surface.
Michael Lagace - Haddam CT, US John Grunbeck - Northford CT, US Milton Ives - Bolton CT, US
International Classification:
G02B 6/38
US Classification:
385071000, 385070000
Abstract:
Optical connector assemblies suitable for use in harsh environments such as down hole oil and gas well applications and methods for fabricating the same are provided. In one embodiment, an optical connector assembly suitable for down hole oil field applications comprises a first and second optical waveguide urged by a biasing member against a bracket. Each of the waveguides has at least one base surface formed on the exterior of the waveguide that is disposed against at least one of a plurality of reference surfaces of the bracket. In another embodiment, flats comprise two of the base surfaces on each optical waveguide. In another embodiment, a method of fabricating an optical connector assembly suitable for down hole oil field applications includes the steps of forming a first flat on a first optical waveguide, forming a second flat on the first optical waveguide, forming a first flat on a second optical waveguide, forming a second flat on the second optical waveguide, and biasing the first flats of the first and second optical waveguides against a first seating surface and second flats of the first and second optical waveguides against a second seating surface.
Trevor MacDougall - Simsbury CT, US John Grunbeck - Northford CT, US James Dunphy - South Glastonbury CT, US Domino Taverner - Farmington CT, US Guy Daigle - Bristol CT, US Richard Jones - Sanford FL, US Milton Ives - Bolton CT, US
International Classification:
G02B 6/00
US Classification:
385012000
Abstract:
Methods and apparatus enable monitoring conditions in a well-bore using multiple cane-based sensors. The apparatus includes an array of cane-based Bragg grating sensors located in a single conduit for use in the well-bore. For some embodiments, each sensor is located at a different linear location along the conduit allowing for increased monitoring locations along the conduit.
Richard W. Sorenson - Avon CT Milton N. Ives - Wolcott CT
Assignee:
Carlingswitch, Inc. - West Hartford CT
International Classification:
H01H 2100
US Classification:
200 6BA
Abstract:
A three position switch has three blade or strip type fixed contacts, which can be assembled by insertion in slots provided in the switch case. The switch has a stable center-off condition without requiring a yoke on the center fixed contact. The movable contact cooperates with the actuator's plunger portion to define this center-off switch condition and the elimination of such a yoke provides a simpler switch.
Richard W. Sorenson - Avon CT Milton N. Ives - Wolcott CT Frank P. Sapone - Waterbury CT
Assignee:
Carlingswitch, Inc. - West Hartford CT
International Classification:
H01H 1558 H01H 2708
US Classification:
200 11J
Abstract:
A rotary key switch has a momentary action such that a lock cylinder and control member are returned to normal positions by a torsion spring provided in a central bore of the control member. The switch housing is in two parts, a lower body portion and an upper panel mounted cap portion that also supports the lock cylinder. The lower portion defines a cylindrical cavity and supports the control member on a central post that is also provided in this central bore. The housing portions are telescopically secured to one another and a stop is deformed in part by the control member and the panel mounted cap portion to positively limit the rotation of the key and lock cylinder.
Richard W. Sorenson - Avon CT Milton N. Ives - Wolcott CT
Assignee:
Carlingswitch, Inc. - West Hartford CT
International Classification:
H01H 1958
US Classification:
200 11J
Abstract:
A miniature rotary switch having nested terminals in its bottom wall, and a disc shaped movable contact element arranged in a rotatable member such that a portion of the disc periphery rolls and slides across fixed contacts defined by the upper ends of these terminals. The rotatable member is restrained from movement axially in a cylindrical chamber defined for it by either a one piece housing, or in a key switch version by a two piece housing.