Patents Represented by Law Firm Simpson, Simpson & Snyder
  • Patent number: 6204963
    Abstract: The invention relates to a tubular intermediary unit for a microscope comprising a relatively small upper part and a similarly small lower part, the upper part being pivotable about an axis of rotation relative to the lower part. Two deflecting mirrors are located in the observation beam path in the upper and lower parts. At least one of the deflecting mirrors can be pivoted, preferably about the same axis of rotation about which the upper part pivots, depending upon the tilt angle of the upper part relative to the lower part. The invention allows an observer to freely adjust an eyepiece tube carried by the upper part without changing the view on the field of vision under the microscope.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: March 20, 2001
    Assignee: Leica Microsystems AG
    Inventors: Paul Grafenhain, Ruedi Rottermann
  • Patent number: 6199812
    Abstract: A swivel arm assembly for connecting a surgical microscope to a stand comprises a microscope interface connected to a suspension device by a swivel arm. The swivel arm includes an approximately isosceles two-armed support lever and an approximately isosceles two-armed operating lever pivotal relative to the support lever about an axle connecting the vertices of each lever. An upper shaft at an upper end of the support lever and a lower shaft at a lower end of the support lever are coupled connected to respective upper and lower operating ends of the operating lever by toggle joints, whereby moments arising at one shaft are transmitted to the other shaft at a 1:1 ratio. The swivel arm is guided for motion in a vertical plane by a parallel carriage guide having a first and second orthogonal carriage guides, and an adjustable carriage guide connects the upper shaft to the suspension device to permit the center of gravity of loading to be moved.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: March 13, 2001
    Assignee: Leica Microsystems AG
    Inventor: Rolf Schuepbach
  • Patent number: 6190708
    Abstract: The present invention provides efficient, selective and economical methods for producing cereal suspensions having the aroma and/or flavor of natural cereals and for modifying the viscosity and/or sugar kind of cereal suspensions. The methods include treating a cereal substrate suspension with an enzyme preparation which comprises at least one hydrolase having the ability to hydrolyze &agr;-glycosidic bonds and having no glucanase and proteinase effect. The hydrolase may be selected from the group consisting of &bgr;-amylase, &agr;-amylase, amyloglucosidase and pullulanase, with the proviso that when the enzyme preparation comprises &bgr;-amylase or (&agr;-amylase there is always a mixture of at least one other of the &agr;-glycosidic hydrolases. In addition to the above-identified hydrolases, the enzyme preparations of the present invention may further comprise an isomerase, such as glucose isomerase.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: February 20, 2001
    Assignee: Cereal Base CEBA AB
    Inventor: Angelika Oste Triantafyllou
  • Patent number: 6190245
    Abstract: A hand operated orbital sander having a hand grip portion provided with a fluid supply inlet connected to a source of pressurized fluid and a fluid discharge; a base portion for mounting a sanding pad and having a chamber, a fluid inlet for directing fluid into the chamber and a fluid outlet for discharging fluid from the chamber; a resiliently deformable sleeve portion for connecting the base portion to depend from the hand grip portion and defining a conduit for placing the fluid outlet in flow communication with the fluid discharge; a fluid operated rotor rotatably supported by the base portion within the chamber and mounting an eccentric weight for imparting orbital movement to the base portion; and a flexible conduit for connecting the supply inlet to the fluid inlet to apply pressurized fluid to the rotor to effect rotation thereof.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: February 20, 2001
    Assignee: Dynabrade, Inc
    Inventors: Richard A. Heidelberger, David E. Baran
  • Patent number: 6181073
    Abstract: A piezoelectric illumination control circuit for a microscope comprising a tunable frequency source of alternating current, a piezoelectric crystal having an impedance dependent on operating frequency, driven by the tunable frequency source of alternating current, and a load driven by the piezoelectric crystal. A second embodiment comprises a piezoelectric illumination control circuit for a microscope, comprising a constant frequency source of alternating current, a piezoelectric crystal coupled to a tunable dummy reactive load for the purpose of varying the impedance of the crystal and dummy load, the piezoelectric crystal driven by the constant frequency source of alternating current, and a load driven by the piezoelectric crystal.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: January 30, 2001
    Assignee: Leica Microsystems Inc.
    Inventor: Mark Branham
  • Patent number: 6173505
    Abstract: A measurement and marking tool comprising a horizontal member having attachment means for securing a tape measure thereto, and a vertical member emanating from and arranged perpendicularly to the horizontal member. The tool is especially useful in measuring and marking stud placement in carpentry.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: January 16, 2001
    Inventor: Anthony Munno
  • Patent number: 6172746
    Abstract: A transmitted light refractometer comprises an optical system having a movable mirror for redirecting light transmitted through a light-refracting sample to a beam splitter for dividing the light between first and second detection paths. The first detection path leads to an eyepiece whereby an operator may view an illumination boundary shadowline brought into the field of view of the eyepiece by adjusting the position of the movable mirror. The second detection path leads to a light-sensitive detector, preferably a linear scanned array, for generating signal information indicative of the location of the shadowline on the detector. An optical position sensor associated with the movable mirror includes a position detector providing signal information indicative of the position of the movable mirror.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: January 9, 2001
    Assignee: Leica Microsystems Inc.
    Inventors: Michael J. Byrne, Thomas E. Ryan, Kyle R. Bleyle, Keshav D. Sharma, Robert C. Atkinson, David J. Cash
  • Patent number: 6172804
    Abstract: Disclosed is an optical device with at least one lens and at least one swiveling observation tube, exhibiting the following characteristics: The observation tube comprises a base section fixedly connected to the optical device, and an eyepiece carrier which rolls along an arc of a circle so that swiveling can occur on the base section; a first rotatable deflecting mirror whose rotational axis orthogonally intersects the optical axis of an objective lens of the optical device and which is forcibly rotated by the movement of the eyepiece carrier on the base section; a second rotatable deflecting mirror is arranged in the eyepiece carrier and whose rotational axis orthogonally intersects the optical axis as deflected by the first deflecting mirror and which is forcibly rotated by the movement of the eyepiece carrier on the base section.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: January 9, 2001
    Assignee: Rodenstock Prazisionsoptik GmbH
    Inventors: Manfred Schuck, Georg Stoeckl, Klaus Koch, Alexander Götz
  • Patent number: 6167656
    Abstract: “A security window assembly comprising a frame having four members and a pane member securable within the frame. The bottom member of the frame contains a milled groove. The top member of the frame contains a stepped groove having a first groove of a first depth and a second groove of a second and deeper depth. The pane is installed by sliding it into the second depth groove to allow it clearance to then be installed in the bottom member groove. The pane can only be removed by sliding it into the second depth groove which removes the pane from the bottom member groove. When in place in the window, the pane is positioned within the bottom member groove and within the first depth groove of the top member. Clamps hold the pane in place.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: January 2, 2001
    Assignee: Fortress Security Windows Inc.
    Inventors: Anthony Devlin, Mark J. DiNoto
  • Patent number: 6165148
    Abstract: A wrist/hand/finger orthosis comprises a pliable splint member elongated in a direction from forearm to fingertips, a cover enclosing the splint member, and a plurality of releasable straps connected to the cover. Proximal to distal, the splint member includes forearm, wrist, hand, and finger portions. A thumb peninsula extends from the hand portion of the splint member, and a circular cut out region is provided adjacent thereto for increasing pivotal freedom of the thumb peninsula. The straps have free ends which attach to respective attachment locations on the cover such that the straps cross over the patient's limb in diagonal or oblique orientation, and the strap attachment locations are preferably color-coded with the straps for ease of use.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: December 26, 2000
    Assignee: Loretta M. Carr-Stock
    Inventor: Loretta M. Carr-Stock
  • Patent number: 6162523
    Abstract: The invention concerns a novel support which has at least one bearing unit (1,2,4,16,40) made from a fiber-reinforced synthetic material and which is therefore light and stable and has positive optical characteristics. In a further embodiment, the invention is provided with vibration damping means between adjacent bearing elements (1,2,4,16,40) or parts of the bearing elements.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: December 19, 2000
    Assignee: Leica Microsystems AG
    Inventors: Andreas Metelski, Kari-Heinz Wager
  • Patent number: 6159148
    Abstract: A non-contact tonometer having a fluid pulse generating system for causing corneal applanation is improved by changing the pressure versus time characteristics of the fluid pulse from a linearly increasing relationship of the prior art to a non-linearly increasing relationship which reduces the impulse energy delivered to the eye during testing for purposes of patient comfort. In a preferred embodiment, an automatically driven piston for producing an air pulse is provided with a linearly increasing current source for driving the piston mechanism, whereby the pressure ramp of the air pulse increases as a squared function of time to reduce impulse energy delivered to the eye.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: December 12, 2000
    Assignee: Leica Microsystems Inc.
    Inventor: David A. Luce
  • Patent number: 6158779
    Abstract: A multi-ply business form, comprising a chain of custody form having a first section for recording information required by federal drug testing regulations, and a second section containing one or more adhesive labels for labeling containers of body fluid specimens to be tested, and, an airbill form detachably secured to the chain of custody form, the airbill form containing a first part for recording information about sender and recipient of the container, and a second part containing an adhesive label containing information about sender and recipient, the adhesive label arranged to be secured to the container.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: December 12, 2000
    Assignee: Moore North America, Inc.
    Inventor: Kathryn D. Petrick
  • Patent number: 6146727
    Abstract: A composite molded plastic brake piston which comprises a phenolic resin body that is co-molded to a skin which comprises a phenolic sheet molding compound. The skin adheres to at least one surface of the article. The phenolic resins of the two compounds are cross-linked into a molded product which resists separation by mechanical, chemical or thermal methods.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: November 14, 2000
    Inventor: W. Andrew Dannels
  • Patent number: 6145988
    Abstract: A contact lens manufacturing method by electronic matching the corneal shape. The corneal shape is reproduced in the back surface of a contact lens via electronic corneal topography, according to morphological conditions imposed by functional optimization of said lens and a numerical definition of a tear film layer covering the cornea surface. The invention provides electronic corneal topography and numerical optimization techniques to define the lens geometry in order to achieve a corneal fit congruent with the fitter choice. The contact lens specialist who examines the cornea may configure the numerical processing according to the kind of corneal fit he chooses, without having to define lens geometrical parameters. The method provides a numerical description of the lens geometry, that is translated into a suitable format for Computer Numerical Controlled (CNC) machining.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: November 14, 2000
    Assignee: EIKON di Chavacci Daniela & C.S.a.s.
    Inventor: Maurizio Manfredini
  • Patent number: 6137627
    Abstract: A fine-focusing stage for microscopes, with an object carrier (1) , a holder (2) for the object carrier (1) and a positioning mechanism (3) adjusting the support in its horizontal position. In order to achieve parallel vertical displacement of the object carrier (1) using simple methods of construction the invention is so designed that the holder (2) comprises a mounting portion (4) preferably for mounting on an object stage or on the microscope and a connecting portion (5) with the object carrier, and articulated parallel arms (8,9) through bending elements (6,7) extend between the mounting portion (4) and the connecting portion (5).
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: October 24, 2000
    Assignee: Leica Microsystems Heidelberg GmbH
    Inventors: Johann Engelhardt, Klaus Kierschke
  • Patent number: 6129319
    Abstract: The invention concerns a new kind of stand equipped with two separate balancing weights (5a,b), one of which balances the horizontal pivoting movement and the other of which balances the vertical pivoting movement. Various embodiments relate to electronic measuring means (6) and adjusting means (7) for automatic adjustment of the positions of the balancing weights (5a,b). (FIG.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: October 10, 2000
    Assignee: Leica Microsystems AG
    Inventor: Andreas Metelski
  • Patent number: 6114002
    Abstract: Hygienic mat which can be used standing steadily on it to wipe the feet after a shower or a bath and which at the same time can be folded, as well as being light and portable. Its characteristic is to comprise a first and a second pad (2a, 2b) hinged on adjacent borders (3) in a folding relationship between an open flat position and a closed book-like position. Each pad (2a, 2b) preferably engages with a flat stiff support (4a, 4b) in a recesses (5a, 5b) defined by a boundary rim (6) raised from a stiff bottom (4). Preferably, the pads (2a, 2b) have a permeable spongy towel-like absorbing cloth (9) attached to a resilient base sheet (10) and are hinged by means of either a a flexible strip (7) or a plurality of joints (8). Gripping means (13) fixed to the boundary of said pads or supports are advantageously provided for.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: September 5, 2000
    Assignees: Roberto Risaliti, Patrizio Innocenti
    Inventor: Burgassi Rinaldo
  • Patent number: 6098944
    Abstract: A mechanism for supporting a component, such as a CPU, below a support, includes a support member mounted to depend from the support and being adapted to undergo both horizontally directed sliding movement and pivotal movement about a vertically disposed pivot axis relative thereto, a pair of straps having first and second ends, and a strap tension adjustment device carried by the support member, wherein second ends of the straps are removably fixed to the support member and first ends of the straps are fixed to the tension adjustment device, such that the straps are suspended below the support member as U-shaped loops sized to receive the component therewithin, and the tension adjustment device is manually operable to releasably shorten the lengths of the loops for clamping the component in position relative the support member. The component may be selectively mounted such that its major side surfaces or panels are arranged either normal or parallel to a lower surface of the support.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: August 8, 2000
    Assignee: Weber Knapp Company
    Inventors: Donald R. Pangborn, Richard L. Watt, James R. Caronia
  • Patent number: D429265
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: August 8, 2000
    Assignee: Leica Microsystems Inc.
    Inventors: Werner Holbl, Scott W. Parks