Patents by Inventor Donald G. Doss

Donald G. Doss 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).

  • Patent number: 6816662
    Abstract: An article for temporarily retaining an optical fiber cable including a stripped terminal portion of at least one optical fiber requiring cleaving followed by polishing of an end face thereof. The article comprises a housing having a recess for a demountable optical fiber holder. A demountable optical fiber holder includes a base-plate having at least a first fiber channel to receive at least one optical fiber. The base plate has a number of pockets. A cover plate for the demountable optical fiber holder includes a spring clamp, at least a first upper channel and a number of posts to mate with the pockets of the base-plate to assemble the holder. The article further includes a guide plate attached to the housing to pivot between a first pivot position and a second pivot position. A rotatable lid attached to the housing rotates between an open position and a closed position. The article temporarily retains the optical fiber cable for cleaving and polishing the end face thereof when the lid is closed.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: November 9, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Donald G. Doss, David S. Hardcastle
  • Publication number: 20040057676
    Abstract: An optical fiber connector plug for an optical fiber connection comprises a connecting portion including a rear entry at a first end and a first fiber stub exit opening to a first fiber stub channel. The first fiber stub exit is parallel to a second fiber stub exit opening to a second fiber stub channel. The first and second fiber stub exits are formed opposite the first end. The rear entry divides at a junction into a first fiber groove and a second, diverging fiber groove. The connecting portion includes crimp elements each having an open-ended bore. Each crimp element contains an optical fiber stub. A molded top attached to the connecting portion includes a substantially rectangular opening. The opening contains a compression element that moves to form splices by capturing a stripped optical fiber and an optical fiber stub in each of the crimp elements. A bend relief boot encloses the connecting portion at one end, while a shroud releasably engages it at the other end.
    Type: Application
    Filed: September 19, 2002
    Publication date: March 25, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Donald G. Doss, David S. Hardcastle
  • Publication number: 20040057691
    Abstract: An article for temporarily retaining an optical fiber cable including a stripped terminal portion of at least one optical fiber requiring cleaving followed by polishing of an end face thereof. The article comprises a housing having a recess for a demountable optical fiber holder. A demountable optical fiber holder includes a base-plate having at least a first fiber channel to receive at least one optical fiber. The base plate has a number of pockets. A cover plate for the demountable optical fiber holder includes a spring clamp, at least a first upper channel and a number of posts to mate with the pockets of the base-plate to assemble the holder. The article further includes a guide plate attached to the housing to pivot between a first pivot position and a second pivot position. A rotatable lid attached to the housing rotates between an open position and a closed position. The article temporarily retains the optical fiber cable for cleaving and polishing the end face thereof when the lid is closed.
    Type: Application
    Filed: September 19, 2002
    Publication date: March 25, 2004
    Inventors: Donald G. Doss, David S. Hardcastle
  • Publication number: 20040057675
    Abstract: An optical fiber connector plug comprises a connecting portion including a rear entry at a first end and a first fiber stub exit opening to a first fiber stub channel. The first fiber stub exit is parallel to a second fiber stub exit opening to a second fiber stub channel. The first and second fiber stub exits are formed opposite the first end of the connecting portion. An optical fiber connector plug also includes a holder that fits into the rear entry of the connecting portion for permanent retention of at least one stripped, cleaved and polished optical fiber. First and second crimp elements, in the connecting portion, each have an open-ended bore coaxial with the fiber stub channels. Each crimp element contains an optical fiber stub. A molded top attached to the connecting portion includes an opening containing a compression element that forms splices by capturing a stripped, cleaved and polished end portion of an optical fiber and an optical fiber stub in each crimp element.
    Type: Application
    Filed: September 19, 2002
    Publication date: March 25, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Donald G. Doss, David S. Hardcastle
  • Publication number: 20040057672
    Abstract: A process for field terminating at least one optical fiber in an optical fiber connector plug. The process provides an article for retaining an optical fiber cable. The article comprises a housing having a recess for an optical fiber holder and further includes a pivoting guide plate attached at one end of the housing. A rotatable lid attached to the housing rotates between an open position and a closed position. The article retains the optical fiber cable for cleaving and polishing the end face of an optical fiber when the lid is closed. The guide plate engages a cleaving device for cleaving at least one optical fiber. This is followed by end face polishing, of the optical fiber, and release of the optical fiber cable, the optical fiber holder, and the stripped, cleaved and polished optical fiber from the article.
    Type: Application
    Filed: September 19, 2002
    Publication date: March 25, 2004
    Inventors: Donald G. Doss, David S. Hardcastle
  • Patent number: 6086263
    Abstract: A receptacle for terminating an optical fiber at an active device such as a photodetector or solid-state light source. The receptacle includes a housing, a termination fixture and an active device. The housing has an opening for receiving the terminal portion of an optical fiber, a door located at the opening, biased to a closed position and having a latch for releasably receiving an optical fiber plug, and a removable plate allowing access to an interior of the housing. The termination fixture and the active device may be mounted to a common substrate attached to an interior portion of the housing. The termination fixture includes a base and a projection attached to the base proximate a light-transmitting portion thereof, the projection having a fiber-receiving groove directed toward a fiber stop surface located on the light-transmitting portion of the base. The base can have a lens integrally molded with the light-transmitting portion.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: July 11, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Raman K. Selli, Donald G. Doss, George W. Parrett, James K. Guenter, Phillip W. Waltrip
  • Patent number: 6078719
    Abstract: A device for preparing an optical fiber for interconnection includes means for grasping the optical fiber at a first location along the optical fiber, means for scribing and breaking the optical fiber a first select distance from the first location, the means for scribing and breaking including guides for supporting and sliding the means for grasping along the guides in fixed relationship to the means for scribing and breaking, and means for polishing the optical fiber as broken, the means for polishing being connected to the means for breaking. The device also includes a polishing surface fixedly connected to the means for grasping. The polishing surface supports the means for grasping at a second select distance from the first location, the second select distance being shorter than the first select distance. The optical fiber is linearly moveable with respect to the polishing surface.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: June 20, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Gordon Wiegand, Sidney J. Berglund, Donald G. Doss
  • Patent number: 6026210
    Abstract: An optical fiber connector optically connects a first optical fiber and a second optical fiber. The optical fiber connector includes a plug the retains and selectively aligns the first optical fiber, a receptacle that retains and selectively aligns the second optical fiber, and means for forcing the first optical fiber against the second optical fiber. The plug of the optical fiber connector is inserted into the receptacle in order to contact the first optical fiber to the second optical fiber. The force created at the point of contact of the fibers by the means for forcing is in excess of the bending stress of the optical fibers.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: February 15, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Sidney J. Berglund, Donald G. Doss, David Cowden
  • Patent number: 5757997
    Abstract: A fiber optic connector comprising a plug and a receptacle uses the spring force supplied by bowing of the plug fiber to maintain a continuous compressive load at the fiber joint located in a fiber-alignment groove. The plug has a holder for securing the plug fiber and a shroud which snaps onto the holder with the plug fiber extending generally straight inside the shroud. The shroud has a slot providing access to the terminal portion of the plug fiber, and a sliding door which selectively covers the slot. The receptacle includes a housing and another fiber holder for securing the receptacle fiber, with a projection or finger attached to the receptacle fiber holder, the projection having the fiber-alignment groove. The finger is oriented within the receptacle housing such that, when the plug is inserted into the receptacle, the finger extends through the slot in the shroud at an oblique angle with respect to the plug axis.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: May 26, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Barbara L. Birrell, Victor J. Borer, Donald G. Doss, Gordon D. Henson, Scott A. Igl, Nicolas A. Lee
  • Patent number: 5732173
    Abstract: An optical module for interconnecting two or more optical fibers has a microreplicated waveguide element which is integrally formed on the same substrate with a splice element. In one embodiment, the module has three plates, a bottom plate, a cover plate, and a top plate, all contained within a common housing. The bottom plate has fiber-receiving grooves and fiber alignment grooves at its ends, the fiber alignment grooves being aligned with waveguide channels formed on the central portion of the bottom plate. The cover plate is used when forming the cores of the waveguide channels, to force residual curable, waveguide material into flow channels adjacent the waveguide channels, and this material, when cured, adheres the bottom and cover plates together. The top plate is used to clamp fibers which are held in the fiber alignment grooves, with the center of the fibers aligned with the core of the waveguide channels.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: March 24, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James R. Bylander, James B. Carpenter, Donald G. Doss, Douglas P. Hills, Richard A. Patterson, Laura A. Weller-Brophy
  • Patent number: 5402515
    Abstract: A fiber optic distribution system provides a frame having several bays for receiving connector modules, associated jumper organizers, and upper and lower troughs for conveying jumper fibers between adjacent bays. The jumper organizers are constructed such that interbay jumpers need not undergo more than two continuous bends of 90.degree., and further easily store excess jumper slack, such as is required to avoid modal noise, even when both ends of the jumper are terminated in the same tray or cabinet. Each connector module has a plurality of connector trays pivotally attached to a cabinet using a swivel bracket which is located adjacent a gap in the tray sidewall; this allows placement of the incoming fibers into the tray without the need for threading the fibers through a hole, and also minimizes fiber stress during pivoting movement of the trays.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: March 28, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kennth J. Vidacovich, Donald G. Doss
  • Patent number: 5155781
    Abstract: A device for splicing multiple optical fibers includes a splice element having means for holding the optical fibers, a splice body having a slot containing the splice element, and extensions on either end of the splice body for supporting a portion of the fibers. Each of the extensions has an end cover positionable in open and closed positions which provides protection to the fibers against environmental influences. The end covers may advantageously include collapsible compartments filled with a sealant material whereby, when the covers are moved to the closed positions, the sealant material is channeled towards the slot containing the splice element.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: October 13, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Donald G. Doss, Donald K. Larson, Charles M. Mansfield
  • Patent number: 5151964
    Abstract: A device for splicing multiple optical fibers includes a splice element having two plates with fiber receiving V-grooves formed in the inner surface of one of the plates, and a splice body having a wedge to actuate the splice element by clamping the plates together. The splice body includes a jacket and a cap, there being a slot in the jacket for receiving the splice element and a cavity adjacent the slot for receiving the wedge. The cavity has a ramped surface which causes the wedge to move toward the splice element and clamp the plates as the wedge is moved forward on the ramp surface. A tongue, formed integrally with the cap, is preferably interposed between the wedge and the splice element to prevent deformation of the plates which might result from direct contact between the plates and the wedge as it slides forward.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: September 29, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James B. Carpenter, Donald G. Doss, Frank J. Glatzl