Tube-type Holding Structure Patents (Class 385/84)
  • Patent number: 5212752
    Abstract: An optical connector (20) includes a ferrule assembly (22) which is adapted to be received in a plug frame (70). The ferrule assembly is held in the plug frame by a cable retention assembly (40) which is adapted to be secured to said plug frame. A leading end of the plug frame is symmetrical in an end cross-section which is normal to a longitudinal axis of the connector. After the ferrule assembly has been assembled to the plug frame, the direction of any eccentricity of the plug passageway or of an optical fiber terminated by the ferrule assembly is determined. Then the plug frame is assembled to a housing of a grip (90) such that the direction of eccentricity is aligned with a key (92) of the grip. The plug frame is capable of being assembled to the grip notwithstanding the rotational orientation of the plug frame with respect to the grip.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: May 18, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: Daniel L. Stephenson, Naif T. Subh, Ruben Travieso
  • Patent number: 5187762
    Abstract: An optical ferrule including a non-metallic sleeve 11 formed with a through bore having a small bore portion 14 and a large bore portion 1. A bare fiber 13 and a coating 15 of an optical fiber 12 are adhesively fixed in the small bore portion and the large bore portion, respectively. The large bore portion 16 has at least one groove 17 formed in the inner surface thereof, the optical fiber has a rough surface portion 20 formed in the coating in at least a portion opposing to the groove, a glass tube 18 is inserted in the large bore portion between the small bore portion and the end face of the coating of the optical fiber and has an outer diameter larger than the inner diameter of the small bore portion and an inner diameter adapted for insertion of the bare fiber, and an adhesive 21 is filled between the components including the inner surface of the sleeve. The optical ferrule has superior reliability, durability and stability.
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: February 16, 1993
    Assignee: NGK Insulators, Ltd.
    Inventors: Masami Matsuura, Hisakazu Okajima
  • Patent number: 5185838
    Abstract: An optical waveguide connector consists of a ceramic pin (11) with a bore (12) for the bare optical waveguide (7). In the superimposed abutment (14) for a compression spring (25), two bore sections (16, 17) are provided whose diameter corresponds to that of the optical waveguide with a coating (8) and with a jacket (9), relatively. The precise guidance of the optical waveguide so obtained in all sections minimizes the likelihood of sharp bends.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: February 9, 1993
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl-Ernst Luottgert, Klaus Schulz
  • Patent number: 5166996
    Abstract: A fiber protector which cooperates with the applied connector to house and protect the extending length of glass fiber of a fiber optic cable. The protector is a cylinder having a first end coupled to the connector. The protector is elongated to receive the extending length of glass fiber and is sufficiently rigid to protect the extending length of glass fiber from the application of force which could cause cracking or breakage of the glass fiber. Additionally, the protector may be formed of a material having thermal conductivity properties which aid in the thermal curing of the resin within the connector ferrule. Heat is then conducted by the protector to the connector body, and thus to the resin within the ferrule. Furthermore, an apparatus may be provided for connection to the heating end of a standard heat gun, and include means for receiving at least one protector to provide thermal communication between the heat gun and the protector.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: November 24, 1992
    Inventor: Bruce M. McCoy
  • Patent number: 5152761
    Abstract: To protect the launch surfaces of laser catheters fed with short-pulsed laser radiation, the individual optical fibers are placed on the launch side in hexagonally closest packing. Ablation-resistant materials are applied to the outer circumference of the cross-section area adjacent to the launch device, and the individual fibers and the ablation-resistant materials are connected to one another by material or friction connections. The ablation-resistant materials are of the same material, silicate, or PTFE, as the optical fibers.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: October 6, 1992
    Assignee: Schott Glaswerke
    Inventors: Gerhard Muller, Hasan Kar, Klas Dorschel, Karl-Heinz Schonborn
  • Patent number: 5134677
    Abstract: A fiber-optic connector for a cable with an optical fiber. The connector includes a first backpost having an exteriorly threaded forward portion, a rearward portion attachable to the cable, and a central passageway extending therethrough. The connector has a body with a forward portion, an interiorly threaded rearward portion, and a central passageway extending therethrough. The body threads have a pitch diameter and pitch thread which mate with the threads of the first backpost. A second backpost is positioned within the body central passageway, and has a forward portion which holds a ferrule in position, and a rearward portion which extends through a rearward opening in the body and into a forward opening of the first backpost. The second backpost rearward portion and the first backpost central passageway are non-cylindrical to prevent rotation of the second backpost.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: July 28, 1992
    Assignee: Augat Communications Group
    Inventors: Alexander M. C. Leung, William S. Jensen, Guido Bertoglio fu Edoardo
  • Patent number: 5121455
    Abstract: A fiber optic connector for terminating a length of fiber optic cable having a central fiber optic core covered by cladding. The connector preferably comprises a rigid, one-piece, integrally molded plastic sleeve for fitting over the end of the optic cable with an outermost end of said cable being typically stripped of all material outside of said cladding, and said outermost end projecting in snugly fitting relation through a bore in an outer end of the rigid sleeve. The bore also defines through the sleeve a section spaced from the outer end which is of increased diameter when compared with the bore at the outer end, to snugly receive a portion of the fiber optic cable having unstripped buffer. The rigid sleeve may carry side apertures for receiving a plurality of U-shaped retention members which pass transversely through the side apertures, preferably from a plurality of transverse directions, to grip and retain the fiber optic cable.
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: June 9, 1992
    Assignee: Methode Electronics, Inc.
    Inventor: Vincent J. Palecek
  • Patent number: 5119456
    Abstract: An optical fiber connector terminal includes a sleeve (6); a plurality of pins (7) disposed equidistance from a center within the sleeve to form a receiving aperture (9); a plurality of inner ridges (8) disposed between the sleeve and the pins; and an optical fiber (10) inserted into and bonded to the receiving aperture.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: June 2, 1992
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Norihide Kawanami, Kinjiro Okada, Yoshikazu Kozu
  • Patent number: 5119455
    Abstract: A connector system for operatively connecting the ends of two fiber optic cables together. A wall-mountable plate includes an elongated receptacle containing spaced through bores. The bores have opposed frusto-conical entry sections which are joined by a cylindrical central section. A terminal connector is mounted on the end of each cable and has spaced frusto-conical projections which end in cylindrical nose portions containing the ends of the fibers. The terminal connector projections are insertable through opposite ends of the bore into abutment of the nose portions at an interface location along a central portion of the bore. Lock tabs and shoulders on the receptacle and on one of the terminal connectors latch the connector within the bore, with the terminal being held without bias and against reverse movement out of that end of the bore. A collar is slidably mounted on the other terminal connector, with a spring captured between the connector and the collar for biasing them apart.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: June 2, 1992
    Assignee: General Motors Corporation
    Inventors: Kurt L. Jennings, Dominic A. Messuri, Kenneth P. Cope
  • Patent number: 5117475
    Abstract: The present invention comprises a connector adapted to receive fiber cables. The connector comprises a housing including a first opening and a second opening which includes a first beveled portion. The connector further comprises a means for holding and aligning a cable and being adapted to slidably fit into the first opening, a wedge means adapted to slidably fit into the second opening, and means for fastening the wedge means to the housing. A means for preventing free rotation of the wedge means in absence of the holding and aligning means is also included. The second opening is machined such that the wedge means is forced against the holding and aligning means as the wedge means is moved into the second opening.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: May 26, 1992
    Assignee: General Electric Company
    Inventor: Joseph C. Young
  • Patent number: 5113465
    Abstract: An optical fiber connector terminal includes a sleeve (6); a plurality of pins (7) disposed equidistance from a center within the sleeve to form a receiving aperture (9); and an optical fiber (10) inserted into and bonded to the receiving aperture.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: May 12, 1992
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Norihide Kawanami, Kinjiro Okada, Yoshikazu Kozu
  • Patent number: 5111520
    Abstract: An optical fiber connector terminal includes a sleeve (6); a plurality of collet members (7) disposed around a center within the sleeve to form a receiving aperture (9); and an optical fiber (10) inserted into and bonded to the receiving aperture.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: May 5, 1992
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Norihide Kawanami, Kinjiro Okada, Nobuaki Kobayashi, Kimio Masuda
  • Patent number: 5111521
    Abstract: An optical fiber connector terminal includes a sleeve (6); a plurality of pins (7) disposed equidistance from a center within the sleeve to form a receiving aperture (9); a plurality of filler rods (8) disposed between the sleeve and the pins; and an optical fiber (10) inserted into and bonded to the receiving aperture.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: May 5, 1992
    Assignee: Hirose Electric Co. Ltd.
    Inventors: Norihide Kawanami, Kinjiro Okada, Yoshikazu Kozu
  • Patent number: 5109453
    Abstract: A connector for joining light transmitting fiber cable through a cover (14) to a transmitter and/or receiver device (3) comprises a plug connector half (6) comprising a plug (3) and a transceiver adapter (10). The plug (8) has profiled passageway (43) for receiving an optical fiber. The transceiver adapted (10) is an integral two-part structure comprising a transceiver shroud (11) adapted to axially receive the plug (8) and extending axially (38) for forwardly aligning the plug (8) relative to the transmitter and/or receiver device (3). The adapter (10) further comprises a latching beam mechanism (12) having forward extending latching beams (13).
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: April 28, 1992
    Assignee: AMP Incorporated
    Inventors: Bryan T. Edwards, Steven L. Flickinger, David D. Sonner, Jeffrey A. Zeiders
  • Patent number: 5104243
    Abstract: A device for electro-optical signal conversion having a housing containing electro-optical signal conversion means and electrical and optical contact elements coupled thereto. These electrical and optical contact elements are designed for making contact to electrical and optical connector means, respectively. The housing is provided with latching means for detachably locking the connector means to be coupled thereto. Accordingly, with the device an adapter having an electrical and optical make-and-break connection is provided.
    Type: Grant
    Filed: April 23, 1991
    Date of Patent: April 14, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John W. Harding
  • Patent number: 5101463
    Abstract: A push-pull optical fiber connector which is compatible with ST-type receptacles. The connector includes a hollow, cylindrical backbone, a ferrule holder located in one end of the backbone, a ferrule affixed to the ferrule holder, a clamp at the other end of the backbone securing the strength member of the optical fiber to the backbone, and two flexible arms attached to the outer surface of the backbone having apertures which latch onto the bayonet lugs of the ST receptacle. A housing is further provided which surrounds and slides over the backbone. The housing has two slots therein for accommodating the latch arms, and ramp surfaces proximate the slots for engaging the leading edge of the latch arms. After the connector has been attached to the ST receptacle, it may be disconnected by simply pulling on the housing. The ramp surfaces then contact the latch arms, raising them and disengaging them from the receptacle lugs.
    Type: Grant
    Filed: May 3, 1991
    Date of Patent: March 31, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Nuran Cubukciyan, Albert Gennaro, Raymond R. Nering, Julius T. Puchammer
  • Patent number: 5091990
    Abstract: A fiber-optic connector for a cable with an optical fiber. The connector includes a first backpost having an exteriorly threaded forward portion, a rearward portion attachable to the cable, and a central passageway extending therethrough. The connector further has a body with a forward end portion, an interiorly threaded rearward end portion, and a central passageway extending therethrough. The body threads have a pitch diameter and pitch thread which mate with the threads of the first backpost. A second backpost is positioned within the body central passageway, and has a forward end portion which holds a ferrule in position, and a rearward end portion which extends through a rearward opening in the body and into a forward opening of the first backpost.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: February 25, 1992
    Assignee: Augat Communications Group
    Inventors: Alexander M. C. Leung, Guido Bertoglio fu Edoardo
  • Patent number: 5080460
    Abstract: An optical connector comprising, an alignment ferrule 11 receiving a plunger 38 and receiving an insert 35 between the plunger 38 and a constriction 32, the plunger 38 being constructed to receive an optical fiber 3 and a buffer 4 covering the optical fiber 3, the plunger 38 and the insert 35 being constructed for movement forwardly to compact the insert 35 in the constriction 32 and to apply compression concentrically on the optical fiber 3, and projecting barbs comprising a frictional surface 44 on the plunger 38 being force fit with corresponding ribs 47 along the alignment ferrule 11.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: January 14, 1992
    Assignee: AMP Incorporated
    Inventors: David D. Erdman, Kevin T. Monroe, Alan E. Plotts