Patents Represented by Law Firm Irons & Sears
  • Patent number: 4363506
    Abstract: The latch comprises a mechanism for actuating at least one bolt comprising a door-knob hub adapted to receive an actuating rod for said mechanism. The latch further comprises an intermediate member which is rotatively mounted in the door-knob hub and ensures the rotatable mounting of the door-knob hub in the case of the latch. The intermediate member comprises an aperture for receiving the actuating rod and is provided with a nose portion for engagement with a branch of the door-knob hub in the course of the rotation of the actuating rod in the direction for actuating the latch. An abutment is provided for stopping the rotation of the nose portion after a given angular displacement of the actuating rod in the direction opposed to the direction for actuating the latch.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: December 14, 1982
    Assignee: La Perche
    Inventor: Jean Rosell
  • Patent number: 4347525
    Abstract: In the label printing system of the present invention, a strip of adhesive-backed label stock capable of receiving a latent charge image and having a releasable backing layer is drawn continuously from a supply reel and passed successively through an electrostatic print head, a developer, a pressure fixer, and a rotary die or butt cutter for separating the printed stock into individual labels on the uncut releasable backing layer. The latent imaging of each label at the electrostatic print head is carried out at defined discrete locations on the label stock. These locations may be defined in response to a synchronization signal produced by an angular position detector cooperating with the rotary cutter. The synchronization signal is indicative of a predetermined instantaneous rotational orientation of the cutting elements on the rotary cutting member, thereby insuring that the printed label indicia are properly centered within the label edges after die or butt cutting.
    Type: Grant
    Filed: September 25, 1980
    Date of Patent: August 31, 1982
    Assignee: Markem Corporation
    Inventors: Robert A. Moore, Bruce K. Norlund, Harold S. Kontrovitz, Clayton B. Robbins, Jeffrey B. Brooks
  • Patent number: 4340532
    Abstract: Two component adhesive formulations are described that can be mixed to form compositions containing a curable liquid resin binder and filler. The liquid resin binder comprises from about 1% to about 60% of a lower alkoxy, lower alkyl methacrylate comprising methoxyethyl methacrylate, and from about 40% to about 99% of a polyunsaturated agent selected from the group consisting of aliphatic or aromatic diacrylates or dimethacrylates or mixtures thereof, the percentages being by weight based on the liquid resin binder. The filler forms up to 80% by weight of the adhesive composition and consists of finely divided inorganic filler, finely divided organic filler that may be soluble in the liquid resin binder, and mixtures thereof. The preferred compositions are useful as orthodontic adhesives and contain from about 10% to about 50% by weight of the liquid resin binder of methoxyethyl methacrylate.
    Type: Grant
    Filed: April 11, 1980
    Date of Patent: July 20, 1982
    Assignee: Lee Pharmaceuticals, Inc.
    Inventors: Henry L. Lee, Jr., Giovanni Nolet
  • Patent number: 4340529
    Abstract: In an adhesive having two curable components designed to be coated in separate layers on one or more of two surfaces to be joined, and cured upon contact of the layers with each other, one component is a curable liquid primer having a viscosity of at least 800 cps but no more than about 50,000 cps at 23.degree. C., and the second component is a paste having a viscosity of at least 100,000 cps at 23.degree. C. The primer is formulated with a curable liquid monomer component of which at least 30% is an alkoxy alkyl methacrylate, any balance of curable monomer in the primer comprising monomer that is capable of copolymerizing with the first-named monomer and/or cross-linking with it. Also covers the method for joining together two irregular surfaces, utilizing such an adhesive formulation. Particularly intended for orthodontic adhesive applications.
    Type: Grant
    Filed: April 11, 1980
    Date of Patent: July 20, 1982
    Assignee: Lee Pharmaceuticals, Inc.
    Inventors: Henry L. Lee, Jr., Giovanni Nolet
  • Patent number: 4327178
    Abstract: Substrates and method for the assay of urinary kallikrein are provided. The substrates have the general formula ##STR1## wherein R is H, acetyl, benzoyl, cyclopentylcarbonyl, succinyl, R.sub.1 --Ser.sub.1 or R.sub.1 --Phe--Ser where R.sub.1 is H, acetyl, benzoyl, cyclopentylcarbonyl or succinyl,X is H, tritium, 3-iodo or 4-iodo, andn is 0 or 1.Radioactive label may be incorporated in the anilide or benzylamide moiety. Hydrolysis catalyzed by urinary kallikrein yields labeled aniline or benzylamine as product.The assay method includes mixing the enzyme with substrate in a buffered solution, pH 7.5-10.5, the substrate being present preferably at a concentration substantially below K.sub.m. After incubating to allow the reaction to proceed, the reaction is terminated and the radioactive hydrolysis product is separated and counted.Also disclosed are compounds of the type ##STR2## wherein R, R.sub.1 and n are as defined above. X is 3--OH or 4--OH. Y.sub.1 is 3-iodo if X is 4--OH or 6-iodo if X is 3--OH. Y.sub.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: April 27, 1982
    Assignee: University of Miami
    Inventors: James W. Ryan, Alfred Chung
  • Patent number: 4324243
    Abstract: An apparatus and process for aspirating and evacuating a pneumatically operated surgical instrument, such as an intraocular vitrectomy unit having a reciprocating blade for severing unwanted intraocular tissues, is disclosed herein. The apparatus includes a collapsible conduit pneumatically connected to a receptacle for conducting an aspirating negative pressure to the surgical instrument and evacuating material received therefrom into the receptacle. A pneumatically operated clamping means functions both to terminate the application of negative pressure through the collapsible conduit and to eliminate residual negative pressure within the conduit between the blocked portion of the conduit and the surgical instrument.
    Type: Grant
    Filed: November 28, 1979
    Date of Patent: April 13, 1982
    Inventors: Maxwell A. Helfgott, Gerald N. Helfgott
  • Patent number: 4323647
    Abstract: A novel separation technique is described that is particularly useful for effecting separations in enzyme immunoassay procedures. A mixture, in an aqueous liquid vehicle, of (1), ligand-enzyme conjugate, and of (2), the conjugate bound through its ligand moiety to a receptor, is brought into contact with an insoluble, immobilized pseudo-substrate material, to which the enzyme normally binds. Free conjugate binds and becomes insoluble. Bound conjugate remains in the liquid phase. The ligand may be an antigen and the receptor, the antibody to the antigen.This separation technique makes feasible several sensitive immunoassay procedures. The material to be assayed may be, for example, rubella virus; hepatitis B surface antigen; gonorrhea antigen; the antibody to any of the foregoing; a general antibody, i.e., an immunoglobulin; a hormone such as choriomammotropin; a steroid, hapten, or the like.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: April 6, 1982
    Assignee: University of Miami
    Inventors: Nobuo Monji, Albert Castro
  • Patent number: 4321777
    Abstract: This pane comprises at least one sheet of plastics material, for example a polycarbonate, which has a high resistance to impacts and is interposed between two sheets of glass or the like. A film of a transparent fluid is interposed between the sheet of plastics material and each adjacent sheet of glass. A sealing element for the fluid extends around the periphery of the pane.Application as a bullet-proof pane to wind screens and windows of automobile vehicles, to glass, windows and doors of buildings, etc . . .
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: March 30, 1982
    Assignee: Brink's France S.A.
    Inventors: Jacques Sauret, Gerard Grosse
  • Patent number: 4319405
    Abstract: A leveling instrument for use in the building and construction trades comprises a sighting telescope embraced by one or more support members for sighting along horizontal distances, a spirit level frame having at least one bubble level tube mounted therein for indicating the horizontal alignment of the sighting telescope, and a leveling platform having a plurality of vertically adjustable legs for leveling the instrument on a support surface. The aforementioned components are maintained in relative alignment by means of flat planar mating surfaces without rigid mechanical connection therebetween in order to facilitate rapid assembly and disassembly of the instrument and compact storage. The sighting telescope includes a pair of intersecting crosshairs which may be manually adjusted in elevation, making it possible to sight along non-horizontal lines without physically tilting the leveling instrument as a whole.
    Type: Grant
    Filed: January 31, 1980
    Date of Patent: March 16, 1982
    Inventor: Orville E. Price
  • Patent number: 4314560
    Abstract: A powered handpiece for use in endophthalmic surgery comprises a projecting tubular surgical instrument including an inner tubular member slidably received within a coaxial outer tubular member for reciprocation therein, a pneumatic actuator for imparting reciprocation to the inner tubular member, and a coupling member interposed between the actuator and the surgical instrument for transmitting reciprocating motion from the actuator to the inner tubular member. The coupling member has a recessed configuration permitting a flexible suction or infusion tube to be connected to the proximal end of the inner tubular member. The pneumatic actuator, coupling member, and proximal portion of the tubular surgical instrument are received in tandem arrangement by a housing having a side opening for the flexible suction or infusion tube and a separable anterior section for permitting interchangeability among different surgical instruments.
    Type: Grant
    Filed: November 28, 1979
    Date of Patent: February 9, 1982
    Inventors: Maxwell A. Helfgott, Gerald N. Helfgott
  • Patent number: 4308185
    Abstract: Epoxy resin is reacted with a terminating agent to eliminate at least part of the epoxide groups of the resin and form modified resin. The epoxy resin or such modified resin is also reacted with addition polymerizable monomer at elevated temperature in the presence of at least 3% of benzoyl peroxide based on the weight of such monomer. Generally the latter reaction is done at about 110.degree. C. to about 120.degree. C. These two reactions can be performed in any desired sequence, or simultaneously. The final reaction mixture produced contains:(a) graft polymer;(b) ungrafted, modified resin; and(c) ungrafted addition polymer, formed associativelywith the graft polymer. The invention is useful for making coating compositions. The compositions have good weather resistance and are particularly useful for making sanitary coatings for cans for foods and beverages, especially for beer.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: December 29, 1981
    Assignee: SCM Corporation
    Inventors: James M. Evans, Vincent W. Ting
  • Patent number: 4298922
    Abstract: A rotatably adjustable light shield for shielding and suspending a portable trouble lamp is disclosed herein. The light shield generally comprises a cylindrical shield member, a mounting means attached to the bottom end of the shield member for mounting the shield member onto a trouble lamp, and a rotatably adjustable suspension means mounted on top of the shield member for providing a rotatably adjustable suspension mount for the shield. The suspension mount includes a plate having a circular array of detent cavities, a detent ball retainer rotatably mounted over the plate and having at least one detent ball receivable into each of the detent cavities in the plate, and a suspension hook assembly mounted onto the detent ball retainer for suspending the trouble lamp.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: November 3, 1981
    Inventor: Cret E. Hardwick
  • Patent number: 4287819
    Abstract: The source of vacuum comprises a tubular body in which a piston which is combined with a piston rod is axially slidable. A seal is interposed between the rod and the body where the rod extends out of the body. A suction orifice is provided which is on the axis of or in the vicinity of the axis of the body and parallel to the axis. An arrangement is provided for holding the body and urging the piston to one end of the body in one hand. A communication passage is provided for putting the suction orifice in communication with a chamber defined between the piston and the body when the piston is depressed relative to the body.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: September 8, 1981
    Inventor: Andre A. C. Emerit
  • Patent number: 4288136
    Abstract: The cupboard is made from a framework comprising four tubular uprights having a square section and two rectangular or square frames. The sides of the frames are tubes having the same square section as the uprights. In the corners of each frame, the adjacent tubular members are assembled by means of oblique welded gussets. The latter permit the assembly with the uprights engaged in recesses of the frames by means of screws. The side panels are locked to the framework by a roof-cover which has folded edge portions which overlap the upper end of the panels.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: September 8, 1981
    Inventor: Gerard Le Mer
  • Patent number: 4286671
    Abstract: A rotary tiller plow attachment kit for converting into a plow a rotary tiller of the type having a frame, a pair of handle bars extending rearwardly therefrom, and a horizontal power driven axle on which a pair of cleated pull wheels may be mounted. The kit comprises a plow attachment assembly detachably mountable on the front portion of the rotary tiller frame, and a height adjusting control mounted on one of the handle bars of the rotary tiller for selectively adjusting the height of the plow attachment. Since the height adjusting control is located on the handle bars, the height of the plow attachment assembly may be conveniently adjusted by the user while the pull wheels are in operation.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: September 1, 1981
    Inventor: James A. Mays
  • Patent number: 4285847
    Abstract: Increasing the solids content of an aqueous dispersoid of:(a) a resin having aliphatic backbone carbons;(b) addition polymer, and(c) graft polymer consisting of addition polymer grafted to the aliphatic carbon atoms of said resin;which comprises bringing together ethylenically unsaturated monomer, initiator, and such dispersoid, and polymerizing the such monomer in situ.Preferred products produced are water-reducible epoxy resin-based. These are produced by a process which comprises initiating addition polymerization of ethylenically unsaturated monomer in the presence of such dispersoid.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: August 25, 1981
    Assignee: SCM Corporation
    Inventor: Vincent W. Ting
  • Patent number: 4281335
    Abstract: A strip of adhesive-backed label stock capable of receiving a latent charge image and having a releasable backing layer is drawn continuously from a supply reel and passed successively through an electrostatic print head, a developer, a pressure fixer, and a rotary die or butt cutter for separating the printed stock into individual labels on the uncut releasable backing layer. The latent imaging of each label at the electrostatic print head is commenced in response to a synchronization signal produced by an angular position detector cooperating with the rotary cutter. The synchronization signal is indicative of a predetermined instantaneous rotational orientation of the cutting elements on the rotary cutting member, thereby insuring that the printed label indicia are properly centered within the label edges after die or butt cutting. When die cutting is used, separate takeup reels are provided for the waste cuttings and for the finished labels on the uncut releasable backing layer.
    Type: Grant
    Filed: September 25, 1980
    Date of Patent: July 28, 1981
    Assignee: Markem Corporation
    Inventors: Robert A. Moore, Bruce K. Norlund, Harold S. Kontrovitz, Clayton B. Robbins, Jeffrey B. Brooks
  • Patent number: 4271757
    Abstract: An article printing system is disclosed wherein successive strips of closely-spaced interconnected articles, such as electronic components, are fed in an intermittent manner by an endless conveyor belt to a printing nip located beneath a continuously rotating offset roll which is arranged for synchronized vertical reciprocation. Belt perforations corresponding in location to each individual article to be printed are sensed by a photoelectric detector to stop the article at a ready position located a predetermined distance from the printing nip. When a printed image on the offset roll rotates to a position of predicted registration with the motionless article surface below, the belt is restarted and the offset roll is lowered to its printing position in order to transfer the image to the article as it traverses the printing nip.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: June 9, 1981
    Assignee: Markem Corporation
    Inventors: William E. Maxwell, Peter Jenness, III, Michael F. Potter
  • Patent number: 4260701
    Abstract: Improved composition for a fingernail coating having an acrylic binder, a peroxide catalyst, a tertiary amine accelerator, and a polymeric filler at least partially soluble in the coating. The acrylic binder contains a monoethylenically unsaturated monomer comprising at least a major proportion of methoxyethyl methacrylate. A polyfunctional monomer may be present that copolymerizes with the monoethylenically unsaturated monomer, for crosslinking and toughening.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: April 7, 1981
    Assignee: Lee Pharmaceuticals
    Inventor: Henry L. Lee, Jr.
  • Patent number: D264450
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: May 18, 1982
    Inventor: Raymond P. Smith, Jr.