Patents Represented by Attorney Alan H. Spencer

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  • Flexible fiber optical conduit and method of making
    Patent number: 4389089
    Abstract: A flexible image-conducting bundle of optical fibers is produced by juxtapositioning and drawing a multiplicity of glass-clad glass fiber preforms and interstitial rods of leachable glass. The drawn assembly is cut to desired length and interstitial glasses are leached from the intermediate portion of the cut piece.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: June 21, 1983
    Assignee: Warner Lambert Technologies, Inc.
    Inventor: Richard R. Strack
  • Tonometer with improved fluid discharged tube
    Patent number: 4386611
    Abstract: A tonometer with an improved objective unit containing a fluid discharge tube having a portion thereof extending into a plenum chamber enhances the consistency of repeated regulated air discharges. The consistency is further enhanced by texturizing the inner wall of the discharge tube. Since the discharge tube extends into the plenum chamber, the objective unit can have substantial interchangeability with other tonometers.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: June 7, 1983
    Assignee: Warner Lambert Technologies, Inc.
    Inventors: Joseph W. Kantorski, Robert G. Lavallee
  • Six-component microscope objective
    Patent number: 4384765
    Abstract: An infinity-corrected, semi-apochromatic microscope objective having an N.A. of 0.95 has five elements and provides a magnification of 100.times. when used with a telescope objective having an effective focal length (efl) of 183 mm.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: May 24, 1983
    Assignee: C. Reichert Optische Werke, AG
    Inventor: Lambert J. Danner
  • Microscope objective
    Patent number: 4383739
    Abstract: A component microscope objective has a numerical aperture of 0.80. When used with a telescope as described in U.S. Pat. No. 3,355,234, the objective provides a magnification of 63X in an embodiment having a focal length of 2.90 and is well corrected for the usual chromatic image aberrations, spherical aberration, coma and astigmatism.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: May 17, 1983
    Assignee: C. Reichert Optische Werke, AG
    Inventor: Walter J. Bogath
  • 40x Microscope objective
    Patent number: 4379623
    Abstract: A five-component 40x microscope objective having a plano-convex positive doublet as the third element providing sufficient color correction to permit classification as a semi-apochromatic objective is disclosed.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: April 12, 1983
    Assignee: Warner Lambert Technologies, Inc.
    Inventor: Edward B. Rybicki
  • Dynamic image enhancer for fiberscopes
    Patent number: 4378952
    Abstract: A fiberscope objective having an oscillating lens element which causes images formed by the objective to scan across a receiving end of an image-transporting fiber bundle for increased image resolution and bundle blemish suppression. Synchronous scanning of the opposite bundle end renders transported images stationary for viewing.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: April 5, 1983
    Assignee: Warner Lambert Technologies, Inc.
    Inventor: Walter P. Siegmund
  • Microscope objective
    Patent number: 4376570
    Abstract: A five component microscope objective has a numerical aperture of 1.25. When used with a telescope as described in U.S. Pat. No. 3,355,234 and an immersion oil, the objective provides a magnification of 100.times.X in an embodiment having a focal length of 1.824 mm and is well corrected for the usual chromatic image aberrations, spherical aberration, coma and astigmatism.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: March 15, 1983
    Assignee: Warner Lambert Technologies, Inc.
    Inventor: Milton H. Sussman
  • Microscope objective
    Patent number: 4373785
    Abstract: A eight component, oil-immersion, apochromatic microscope objective has a numerical aperture of 1.30. When used with a telescope as described in U.S. Pat. No. 3,355,234, the objective provides a magnification of 100 X in an embodiment having a focal length of 1.824 mm and is well corrected for the usual chromatic image aberrations, spherical aberration, coma and astigmatism.
    Type: Grant
    Filed: April 22, 1981
    Date of Patent: February 15, 1983
    Assignee: Warner Lambert Technologies, Inc.
    Inventor: Arthur H. Shoemaker
  • Control means for optical instrumentation
    Patent number: 4367015
    Abstract: In an ophthalmic refractor system for determining cylinder power and direction of axis for visual correction, cylinder axis orientation based upon corrective cylinder power in the refractor viewing path is automatically determined and introduced into the system.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: January 4, 1983
    Assignee: Warner Lambert Technologies, Inc.
    Inventors: Morey H. Waltuck, David L. Guyton
  • Apparatus for specimen treatment
    Patent number: 4363783
    Abstract: Apparatus for fixation, dessication, and embedding of biologic specimens for microscopic, especially electron microscopic studies having compartment for treating specimens held in liquid permeable specimen holders, a supply of treatment liquid connected to the compartment, to introduce liquid from the supply, and remove liquid from the compartment, a chamber (14c) in the compartment for holding a quantity of fluid, a passage connected to the chamber, pump (15) located in the chamber for moving fluid through the passage, at least one tubular cell (14a) for supporting a plurality of specimen holders (10, 10a) is an end to end relationship, one end of said cell being connected to said passage, the other end of each of said chamber and said cell being connected to a common portion of said tank to permit liquid to be circulated by said pump.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: December 14, 1982
    Assignee: C. Reichert Optische Werke, AG
    Inventor: Hellmuth Sitte
  • Lens array
    Patent number: 4345833
    Abstract: An array of gradient refractive index lenses designed to produce an erect image of an extended object. The lenses are supported in a matrix of light-absorbing cladding glass for stray light control.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: August 24, 1982
    Assignee: American Optical Corporation
    Inventor: Walter P. Siegmund
  • Photochromic compounds
    Patent number: 4342668
    Abstract: Photochromic compounds of the formula ##STR1## wherein one of R.sub.1 and R.sub.2 is halogen or lower alkoxy, and the other is hydrogen, R.sub.3 and R.sub.4 are hydrogen, lower alkyl, lower alkoxy, or halogen and R.sub.5 is an alkyl of 2 to 10 carbons, and their use in lenses are disclosed.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: August 3, 1982
    Assignee: American Optical Corporation
    Inventors: Richard J. Hovey, Nori Y. C. Chu, Peter G. Piusz, Charles H. Fuchsman
  • Respirator cartridge
    Patent number: 4334901
    Abstract: Lower inhalation resistance in respirator cartridges designed for protection against aerosols is accomplished with lower production cost and improved design distributing aerosol loading over greater surface area of filter material.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: June 15, 1982
    Assignee: American Optical Corporation
    Inventors: Adolfo V. Ayes, John A. Jones
  • 10.times. Microscope objective
    Patent number: 4326779
    Abstract: A four component 10.times. microscope objective having a concavo-convex negative triplet as the third element providing sufficient color correction to permit classification as a semi-apochromatic objective is disclosed.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: April 27, 1982
    Assignee: American Optical Corporation
    Inventors: Edward B. Rybicki, Milton H. Sussman
  • Microscope eyeshield
    Patent number: 4307931
    Abstract: A microscope eyeshield of flexible material has internal ribs of different diameters. Small diameter ribs frictionally engage small diameter eyepieces while the larger diameter ribs are for larger diameter eyepieces. A groove adjacent each small diameter rib permits the respective small diameter rib to be displaced into the groove when the eyeshield is fitted to a larger diameter eyepiece.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: December 29, 1981
    Assignee: American Optical Corporation
    Inventor: Charles S. Blake
  • Device for the cryo-substitution of small biological objects for microscopic research, especially electron microscopic investigations
    Patent number: 4306425
    Abstract: The invention concerns a device for the cryo-substitution of small biological objects for microscopic, especially electron microscopic investigations, with a metal receptacle for the reception of at least one object, which is mounted in a dewar flask containing a liquid cryogen and which can be regulated to a desired temperature by means of the cryogen and a regulatable heating device joined to the receptacle.
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: December 22, 1981
    Assignee: C. Reichert Optische Werke AG
    Inventors: Hellmuth Sitte, Ludwig Edelmann
  • Device for metallic mirror-cryofixation and subsequent cryopreparation of biological materials
    Patent number: 4302950
    Abstract: The invention concerns a device for metallic mirror-cryofixation and subsequent cryopreparation of biological materials for microscopic, in particular electron microscopic examinations, employing a highly polished metallic mirror cooled to very low temperatures by a cryogen and mounted in a metal freezing chamber, which can be flooded with a gaseous cryogen, on which an object can be placed by means of an injection mechanism or the like, wherein the freezing chamber has an adequate volume for cryopreparation and for accepting the required accessory devices.
    Type: Grant
    Filed: September 9, 1980
    Date of Patent: December 1, 1981
    Assignee: C. Reichert Optische Werke, AG
    Inventor: Hellmuth Sitte
  • Method of fitting ophthalmic lenses in spectacles frames
    Patent number: 4300317
    Abstract: Glazing spectacles frames with correction of attending lens rim distortions by measuring the inner perimeter of the rims and edging the lenses to the measured perimetric size and proper pattern shape. Insertion of the edge lenses into the measured lens rims will cause the rims to conform to the edged lens profile and correct preexistent rim distortions.
    Type: Grant
    Filed: January 10, 1980
    Date of Patent: November 17, 1981
    Assignee: American Optical Corporation
    Inventors: George T. Croft, Rato R. Buhler
  • Pair of spectacles
    Patent number: D263058
    Type: Grant
    Filed: May 25, 1979
    Date of Patent: February 16, 1982
    Assignee: American Optical Corporation
    Inventor: David W. Johnsen
  • Cuvette tray design
    Patent number: D266588
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: October 19, 1982
    Assignee: Warner-Lambert Company
    Inventor: John W. Mellars