1
Dobbin Donald Patrick, Fritsch Charles Anthony, Sabia Raffaele Antonio: Encapsulating compound and closure. Bell Telephone Laboratories Incorporated, Graves C E, April 22, 1975: US3879575 (134 worldwide citation)

Articles, and particular telephone splices, are protectively encased in a material consisting of a low viscosity oil gelled by a block copolymer such as styrene-iosprene-styrene. Addition of polyethylene to the blend reduces the yield shear stress in the gelled compound and also advantageously suppl ...


2
Miller Calvin Max: Method and means for splicing arrays of optical fibers. Bell Telephone Laboratories Incorporated, Graves C E, February 4, 1975: US3864018 (103 worldwide citation)

Multiple linear arrays of optical fiber cable are aligned and spliced by use of a thin rigid chip with a large number of closely spaced parallel longitudinal fiber-receiving grooves having a uniform cross section. An array splice is built by stacking successive layers of chips and linearly arrayed f ...


3
Miller Calvin Max: Optical fiber splicing apparatus. Bell Telephone Laboratories Incorporated, Graves C E, November 11, 1975: US3919037 (39 worldwide citation)

Single or arrayed pairs of optical are axially aligned and abutted preparatory to splicing by introducing the fibers to be mated into opposite ends of an elongated optical fiber receiving cavity, at a slight angle with respect to the cavity's axis and in the same plane of travel.


4
Anderson Charles Victor, Fleming Mills Lawrence, Kotzias George Anthony, Ross Robert Rogers, Williams James Luchin: Telephone splice closure. Western Electric Company, Bell Telephone Laboratories Incorporated, Graves C E, April 1, 1975: US3875325 (32 worldwide citation)

This multipair telephone cable splice closure is especially useful with filled cable. The closure is double ended and consists of two mating shells which have tapered end mouths to accommodate a range of cable outside diameters. A stiffening member in the form of a one-piece open-center bar permits ...


5
Cherin Allen Henry, Rich Philip Jay: Apparatus for splicing pairs of arrayed or individual fibers utilizing optical fiber aligning grooves. Bell Telephone Laboratories Incorporated, Graves C E, October 14, 1975: US3912574 (31 worldwide citation)

Mating pairs of arrayed optical fibers are axially aligned and abutted preparatory to splicing, by being urged down an inclined guide ramp and into respective fiber receiving grooves. The splice is completed by applying index matching material and a splice connector plate to the abutted joint.Field ...


6
Tamburro Peter James: Interconnection system for reusable gang-type connections between flexible printed circuitry and the like. Bell Telephone Laboratories Incorporated, Graves C E, March 12, 1974: US3796986 (30 worldwide citation)

Connections to flexible printed wiring elements and rigid printed circuit board elements are effected by the disclosed interconnection system consisting essentially of a pressure contact type connector block and backing element. Various shapes of pin connectors are disclosed. Add-on features include ...


7
Bossler Fred Christian, Kent Jr William Harold: Detection of metalshield faults in buried cable. Bell Telephone Laboratories Incorporated, Graves C E, February 12, 1974: US3792350 (23 worldwide citation)

The electric field configuration generated by exciting a cable shield with an ac signal is detected by an earth prod in directions that are respectively perpendicular and parallel to the cable axis with respect to a ground plane. The field components in the vicinity of an open in the shield exhibit ...


8
Berkley David Arthur, Mitchell Olga Mary Mracek: Speech suppression by predictive filtering. Bell Telephone Laboratories Incorporated, Graves C E, January 8, 1974: US3784747 (21 worldwide citation)

Speech signal energy from an undesired source is suppressed by extracting from the undesired signal a delay parameter and a gain parameter. These parameters control a delay and gain network through which both the desired and undesired signals are routed. The delayed, amplified signal, when applied t ...


9
Allen Jont Brandon: Synthesis of pure speech from a reverberant signal. Bell Telephone Laboratories Incorporated, Graves C E, January 15, 1974: US3786188 (20 worldwide citation)

Speech that has been reverberated by the transfer function of a reverberant enclosure is analyzed to detect parameters from which an unreverberative synthetic version of the original speech may be constructed. The process involves continuously approximating the vocal tract transfer function of the s ...


10
Mackenzie Donald Reeve: Adjustable mirror mount. Bell Telephone Laboratories Incorporated, Graves C E, June 4, 1974: US3814365 (19 worldwide citation)

An adjustable mount for rotatably orienting a structure, such as an optical element, about two orthogonal axes comprises first and second orthogonal cross spring pivots and respectively associated first and second coarse-fine adjustment mechanisms. Each cross spring pivot includes a first member and ...