Patents Examined by Charles E. Van Horn
  • Patent number: 4123311
    Abstract: Newly formed battery plates are fed singly edgewise into radially open pockets in a first transfer wheel, while a like number of wrapper sheets are folded in half and pressed radially into pockets in a second transfer and sealing wheel. Vacuum plates in the sides of the pockets in the second transfer wheel hold the wrapper sheets open. Both wheels rotate step by step, and each plate is released to fall by gravity between folded sides of each wrapper. Centering rails carried around segment of second wheel pass through notches in edges of wrapper sheet to center battery plate in wrapper. Plates and wrappers carried by second wheel then pass hot air jets to soften edge of wrapper sheet; after which clamp blades carried by sides of vacuum plates are cammed closed to seal side edges of wrapper sheets over side edges of each plate. Clamp plates then open, and wrapped battery plate is released and delivered by gravity from second transfer wheel to off-feeding conveyor.
    Type: Grant
    Filed: February 12, 1976
    Date of Patent: October 31, 1978
    Assignee: Mac Engineering & Equipment Company, Inc.
    Inventor: Charles H. McAlpine
  • Patent number: 4088526
    Abstract: A fabricating apparatus for cuplike containers, including a continuously moving conveyor defining a closed path and having a plurality of spaced mandrels with an external configuration corresponding to the internal configuration of the containers. Processing assemblies located adjacent to a main conveyor act in timed relationship with the main conveyor to (a) preheat the mandrels, (b) form cylindrical sleeve blanks from a continuous web of thermoplastic material and telescope the sleeve blanks onto the mandrels, (c) simultaneously cut bottom disc closures from two continuous webs of thermoplastic material and deliver the discs serially to the mandrels, (d) rotate the mandrels carrying the sleeve blanks and discs as they are subjected to heat to shrink each sleeve blank about a mandrel in overlapped relationship with a bottom disc, (e) fuse the disc to the overlapping portion sidewalls of the container and (f) form a curved rim at the top of the cup to complete formation.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: May 9, 1978
    Assignee: Owens-Illinois, Inc.
    Inventors: Stephen W. Amberg, Thomas E. Doherty
  • Patent number: 4084966
    Abstract: An imaging system wherein a migration-type imaging member comprising a softenable layer containing agglomerable migration marking material is provided, and the member is exposed to an image pattern of electromagnetic radiation of sufficient energy to cause a simultaneous imagewise migration at least in depth in the softenable layer and agglomeration of the agglomerable migration marking material in the imagewise exposed areas of the imaging member. In another embodiment, a microscopically discontinuous layer of imaging material on a stable substrate is agglomeration or evaporation imaged by the inventive system.
    Type: Grant
    Filed: October 26, 1970
    Date of Patent: April 18, 1978
    Assignee: Xerox Corporation
    Inventors: Werner E. L. Haas, James E. Adams, Bela Mechlowitz
  • Patent number: 4084306
    Abstract: An apparatus for transporting and wrapping pipe insulation comprising a frame and a pair of arms mounted on the frame for swinging movement about a longitudinal axis. A row of longitudinally spaced vacuum pads is suspended and on each arm a pair of transversly spaced rows of longitudinally spaced vacuum pads are suspended on the arms inwardly of the first-mentioned rows on said arms. Vacuum can be selectively supplied to the rows of vacuum pads. Means are provided for swinging the arms toward and away from one another whereby when the arms are extended and the vacuum pads are brought into engagement with a generally flat piece of insulation, the insulation is engaged and may be lifted and transported by manipulating the frame to bring the insulation adjacent a length of pipe and the arms may thereafter be swung inwardly to wrap the insulation about the length of pipe.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: April 18, 1978
    Assignee: American Chain & Cable Company, Inc.
    Inventor: Loren B. Barker
  • Patent number: 4076564
    Abstract: Cleaning imaging material from a xerographic imaging surface with a cleaning blade with reduced friction between the blade and the surface is provided without image degredation by an appropriately roughened surface, which roughness is formed on the photoconductive surface by substrate pre-etching to provide a final or post coated roughness pattern of 3 to 5 microns and less than 20 microns.
    Type: Grant
    Filed: March 5, 1976
    Date of Patent: February 28, 1978
    Assignee: Xerox Corporation
    Inventor: Donald J. Fisher
  • Patent number: 4076567
    Abstract: A method and apparatus for producing synthetic resin sheets having geometric decorative patterns extending through the thickness of the sheet as a substantially identical pattern image corresponding to the image portions of the exposed surfaces thereof, wherein differently colored resin particles are selectively introduced into individual pattern spaces which are confined by enclosing members on a support to provide a regular pattern of differently colored resin particle masses over the surface of the support in a regular pattern, the differently colored resin particle masses are then converted into a pre-formed sheet on the support, the regular color pattern still being retained, and the resulting assembly then being heated at a temperature sufficient to cause fusion or sintering together of the masses of differently colored resin particles comprising the sheet, wherein the original differently colored resin particle masses exist as a repeating pattern of differently colored areas which extend through the th
    Type: Grant
    Filed: December 9, 1975
    Date of Patent: February 28, 1978
    Assignee: Takiron Co., Ltd.
    Inventors: Yoshinobu Yoshikawa, Kosuke Iida, Tadayuki Morikawa, Akinori Satomi
  • Patent number: 4075049
    Abstract: Retroreflective sheeting having improved resistance to delamination is prepared by imparting a grid pattern to a monolayer of glass spheres having a light reflecting layer thereon, applying a sphere binder layer over the grid pattern imposed on the monolayer of glass spheres so as to adhere to the reflective layer on the monolayer of glass spheres, and pressure consolidating the resulting composite against a clear, protective overlay film, wherein the overlay film bonds to the sphere binder layer in the grooves formed by the grid pattern.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: February 21, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: William A. Wood
  • Patent number: 4075048
    Abstract: Method and apparatus for producing a bead for a pneumatic tire comprising applying a coating to a bundle of glass filaments partially drying but not curing the coated bundle, winding the bundle to form a bead and curing the bead member such as the bead will essentially retain the same geometric cross-sectional characteristics during incorporation into the tire as it had before being incorporated into the tire.
    Type: Grant
    Filed: October 31, 1975
    Date of Patent: February 21, 1978
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Daniel C. Lupton, Donn R. Vermilion, James L. Bucher
  • Patent number: 4075047
    Abstract: Tire casings are retreaded with precured tread strips in a heated pressure vessel provided with pressure connections which effect simultaneous inflation of the tires and pressurization of the vessel while maintaining tire pressure above vessel pressure. Subsequently a pressure relief system permits the tires to exhaust faster than the vessel. Each tire is prepared for retreading by applying a bonding medium between the tire periphery and the retread strip and wrapping the resulting assembly with a fluid impervious flexible cover. Tread stabilization rings, wick material and non-stick polymer film may be inserted between the tread strip and the cover.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: February 21, 1978
    Assignee: Bandag Incorporated
    Inventors: Edwin T. Brodie, Donaldee Brewer
  • Patent number: 4075050
    Abstract: A laminated structure forming a synthetic paper made of a base or backing film layer made of a thermoplastic resin in a biaxially oriented state. A paper-like film layer is laminated to the base film layer and comprises a thermoplastic resin having 0.5 to 65% by weight of particles of a fine, inorganic filler dispersed in the resin thereof substantially uniformly. The paper-like film layer is in an uniaxially oriented state and has microvoids dispersed therein formed by stretching the laminated films in a heated state. The microvoids comprise microvoids open to a surface of the paper-like film layer free of the base film layer and include microvoids, open and closed, distributed in the paper-like film layer defining therein a cellular, fibrous structure.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: February 21, 1978
    Assignee: Mitsubishi Petrochemical Company Limited
    Inventors: Masanori Takashi, Mitsuo Yoshiyasu
  • Patent number: 4075053
    Abstract: A device which applies a strip of masking tape to a pipe, particulary to the inside pipe surface. A frame carries a pair of rollers which roll along the inside pipe surface. The tape is mounted on a reel and is unwound in a strip which is pressed against the inside pipe surface by the rollers. An outer guide roller is carried on a hand lever assembly and is biased against the outside surface of the pipe in order to maintain the inner rollers against the inside pipe surface. The hand lever may be pulled away from the pipe to disengage the outer roller therefrom for removal of the applicator device from the pipe.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: February 21, 1978
    Assignee: Price International, Inc.
    Inventor: Franklin Montague Adams
  • Patent number: 4074015
    Abstract: A process for producing nonflammable laminated materials which includes the steps of impregnating a cellulose-containing material with an impregnating solution containing a phenolic-resol resin solution, at least one plasticizer for the resin and optionally flameproofing agents, subsequently drying the impregnated material to effect preliminary condensation of the resin and thereafter curing superimposed layers of the impregnated and preliminary condensed material by the application of heat and pressure. The phenol-resol resin solution used contains 50-80% by weight of an ammonia alkaline-condensed phenol-resol resin with a solids content of 65-80% by weight and with a molecular weight distribution determined by gel chromatography of: dimers 20-26%; tri- and tetramers 6-12%; penta- and oligomers 24-36%; expressed in percent per unit area and hexamethylenetetramine in amounts of 1-15% by weight based on the weight of the impregnating solution.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: February 14, 1978
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Arnold Franz, Siegfried Koepnick
  • Patent number: 4073670
    Abstract: A method of preparing narrow ribbons of unidirectional, fiber-reinforced plastic material, particularly suitable for filament winding operations, involves using a series of spaced discrete parallel strips of fibers and a plastics film, heating under pressure, and removing surplus plastics material from between each strip by application and removal of a continuous sheet.
    Type: Grant
    Filed: November 16, 1976
    Date of Patent: February 14, 1978
    Assignee: Ciba-Geigy Corporation
    Inventor: Panchanan Mitra
  • Patent number: 4072549
    Abstract: A cup or other nestable container is formed from two continuous web stocks of thermoplastic material, particularly an expanded thermoplastic material. A rectangular blank to form the sidewall of the container is severed from a first web stock, and formed into a cylindrical sleeve with the end portions thereof joined to one another in a liquid-tight seam extending the full height thereof. A circular bottom closure disc is cut from a second web stock and transferred to a recessed top of a forming mandrel carried on a continuously-moving turret. The cylindrical sleeve is positioned about the forming mandrel, which carries the sleeve and bottom closure disc to various subassemblies that cooperate with the forming mandrel to produce a finished cup. The cylindrical sleeve is forced downwardly into a heated rimming die positioned adjacent the lower edge of the forming mandrel to cause the lower edge of the sleeve to be rimmed.
    Type: Grant
    Filed: April 30, 1976
    Date of Patent: February 7, 1978
    Assignee: Owens-Illinois, Inc.
    Inventors: Stephen W. Amberg, Ralph G. Amberg
  • Patent number: 4072545
    Abstract: Disclosed is an integrated circuit field effect transistor having a source and drain which protrude above the silicon substrate so as to create shallow junctions with the substrate while maintaining a relatively low sheet resistivity in the region. Two self-aligned source and drain fabrication processes are disclosed for the device. The first process yields a polysilicon field shield and the second process yields a field region composed of thermal silicon dioxide.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: February 7, 1978
    Assignee: International Business Machines Corp.
    Inventor: Francisco H. De La Moneda
  • Patent number: 4071388
    Abstract: A jointer for laminated tapes for use in the production of sheathed cables formed by longitudinally or helically wrapping cable cores with metal tapes laminated with plastic films and by joining the overlapped portions of said tapes by way of heat fusion is disclosed. The method comprises the use of pressing blocks consisting of metal material having a high heat conductivity and respectively having machined surfaces opposing in parallel to each other for the application of uniform pressure to both surfaces of the laminated tapes held therebetween. A heating piece is provided which is electrically insulated from and mounted to the bottom of the pressing block and having relatively high electric resistance and being supplied with electric current thereby pulse heating the portions of the laminated tapes to be spliced.
    Type: Grant
    Filed: May 20, 1976
    Date of Patent: January 31, 1978
    Assignees: Sumitomo Electric Industries, Ltd., Kuniharu Usui
    Inventors: Kuniharu Usui, Hiroshi Shimba, Kunihiro Nakagaki, Hiroaki Mukunashi
  • Patent number: 4071391
    Abstract: A method of manufacturing laminated panels or foils consisting of a lead sheet and a synthetic sheet by using lead alloyed with antimony and/or coating the lead sheet with an alloy of lead. Optionally a protective film serving as an adhesive may be applied onto the surface that is to be welded to the synthetic material. A novel compound material consisting of a lead sheet and a plastics sheet.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: January 31, 1978
    Assignee: Bleiindustrie KG Vorm. Jung & Lindig
    Inventors: Gunter Haberstroh, Lothar Heistermann
  • Patent number: 4071386
    Abstract: A substantially conventional tubeless or tube-type tire casing is mounted on a wheel and contains a centrifugally distributed solid elastic fill material which is deflation proof. A heat curable elastomer is injected into the casing in liquid form, the casing is pneumatically pressurized to seat upon the wheel rims, and the assembly is rotated to centrifugally distribute and position the liquid elastomer until it has cured. Alternatively, a pressurizable tube of relatively small diameter extends about the wheel within the casing and between the beads and rims of the casing and wheel. The tube is belted to limit its radially outward expansion and is filled with air at a pressure sufficient to securely hold the casing beads on the wheel rims. The elastic fill material may have characteristics providing a ride equivalent to a relatively low air pressure and at the same time, the casing will be securely locked to the wheel by relatively high pressure in the belted tube.
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: January 31, 1978
    Assignee: Synair
    Inventor: Edward N. Gomberg
  • Patent number: 4070218
    Abstract: A soft, nonwoven web is produced by adding directly to a thermoplastic polymer at the time of extrusion a lubricating agent having an HLB number in the range of 8 to 20 and a molecular weight in the range of from 200 to 4000. The lubricating agent is uniformly distributed into the polymer as extruded into filaments. The filaments are collected to form a web and then subjected to heat treatment in the range of from 180-260.degree. F. for at least about 1-7 seconds. The lubricating agent migrates to the surface of the fibers producing a release effect and preventing secondary bonding from occurring. After pattern bonding to provide spaced areas of high intensity bonds, the result is a soft, strong nonwoven web having particular utility as a liner for disposable diapers and catamenial devices.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: January 24, 1978
    Assignee: Kimberly-Clark Corporation
    Inventor: Robert E. Weber
  • Patent number: 4070219
    Abstract: The method of making a gasket structure for sealing mating parts together in which the body portion of the gasket structure is formed by convolutely wound annular alternate discrete layers of a carrier material and a fluid impermeable polymeric material adhered thereto of substantially uniform thickness from layer to layer, and cured, and characterized by having the body portion of the gasket structure, throughout substantially its entire extent, compacted to a substantially uniform density. The gasket structure may be formed with a bead of relatively low density, as compared to the body portion, on at least one surface thereof to compensate for surface contour variations, and a coating layer may be provided covering the gasket structure, which is cured after application and which is characterized by its impermeability to, and resistance to, the fluids which are to be sealed off, and to minimize the clamping forces required for compaction to completely seal the mating parts.
    Type: Grant
    Filed: January 23, 1976
    Date of Patent: January 24, 1978
    Assignee: F. D. Farnam Co.
    Inventor: Robert G. Farnam