Dipping Form Per Se Patents (Class 425/275)
  • Patent number: 4464796
    Abstract: A glove formed of rubber or plastics material, especially an examination or surgical glove devoid of a roll-down preventing beaded edge and containing a structured surface at the cuff region. The structured surface is formed at the outer side or surface of the glove by non-connected raised portions, whereas the structured surface is formed at the inside or inner surface of the glove by mirror-image, non-connected recesses or depressions. The mold for fabricating the glove contains non-connected recesses at the cuff region.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: August 14, 1984
    Assignee: Semperit Aktiengesellschaft
    Inventors: Oswald Heissenberger, Erwin Brandstatter
  • Patent number: 4340348
    Abstract: A method and apparatus provided for manufacturing elastomer gloves having percentage elongation of at least 300%. In order to prevent excess deposits of the polymer latex in the areas of the tips of the fingers and the webs between the fingers when the hand-shaped molds are coated, by dipping, with the polymer, the surfaces of the mold in these areas are formed as non-rounded, non-horizontal inclined surfaces which join at an apex and define an included angle therebetween. This arrangement prevents the pooling of the polymer latex in the areas in question, this pooling being the cause of the excess deposits and being characteristic of prior molds of this general type. In order to provide sufficient coagulant around the sharp corners formed in the areas of the tips of the fingers and the webs between the fingers so as to provide sufficient coating in those areas, it is necessary to use a heated mold and to provide sufficient dwell time and withdrawal time for the mold from the coating baths during the process.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: July 20, 1982
    Assignee: BioResearch Inc.
    Inventor: Leonard D. Kurtz
  • Patent number: 4279905
    Abstract: Novel, 3-amino-1-benzoxepin-5 (2H)-one derivatives and methods for their production are disclosed. These derivatives correspond to the Formula I: ##STR1## wherein: R.sub.1 and R.sub.2 independently of one another arehydrogen,C.sub.1 -C.sub.5 alkyl,C.sub.1 -C.sub.5 alkyl substituted with a terminal phenyl, or a phenyl containing one or two halogens, methyl or methoxy groups, a 3,4-methylenedioxy or a 3,4-ethylenedioxy group,C.sub.2 -C.sub.5 alkyl substituted with terminal hydroxy or methoxy or,C.sub.3 -C.sub.4 alkenyl; orone of R.sub.1 and R.sub.2 are hydrogen or a C.sub.1 -C.sub.5 alkyl and the other is a C.sub.2 -C.sub.5 alkyl substituted with a terminal NR.sub.5 R.sub.6 ;R.sub.5 and R.sub.6 independently of one another are hydrogen or C.sub.1 -C.sub.5 alkyl; orR.sub.5 and R.sub.6 are together a 5 to 7 member ring, orR.sub.5 and R.sub.6 are together a 5 to 7 member ring having heterogeneous oxygen, sulfur or nitrogen;R.sub.1 and R.sub.2 are together a 5 to 7 member ring, orR.sub.1 and R.sub.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: July 21, 1981
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Heinrich-Wilhelm Ohlendorf, Klaus-Ullrich Wolf, Wilhelm Kaupmann
  • Patent number: 4269577
    Abstract: A production line for the manufacture of (unreinforced, reinforced or prestressed) concrete comprising concrete casting means, a circuit for hardening it and means for removing the hardened elements. It includes a chain of floats adapted to be moved in a moat of liquid and means for placing the concrete elements which have just been cast, on said floats, which by moving in the moat, transport the concrete elements through the hardening circuit, means being provided to bring back the floats to the concrete casting means. The installation is applied in the manufacture of piles, posts for electric cables, slabs, beams, panels and curbs.
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: May 26, 1981
    Inventor: Mircea Borcoman
  • Patent number: 4251574
    Abstract: In the manufacture of a protective glove, there is provided a mold having two parts interconnected to be moved into open and closed positions. There is also provided an inner glove lining, and each part of the mold is covered with it. The mold, in closed position, is dipped in a bath of protective coating material, removed therefrom, and exposed to initial draining of an excess of coating material. Thereafter, the mold is opened and the draining is completed, while portions of the coating material are retained and gelled.
    Type: Grant
    Filed: October 21, 1977
    Date of Patent: February 17, 1981
    Assignee: Societe Anonyme Parinter
    Inventor: Francis T. Berend
  • Patent number: 4247006
    Abstract: Capsule body, in particular for use with a joined capsule for a pharmaceutical preparation, and method of and apparatus for producing it.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: January 27, 1981
    Assignee: Capsugel AG
    Inventors: Hans U. Bodenmann, Louis P. Van Herle, Winand H. Martens
  • Patent number: 4138132
    Abstract: A protective cover for the bottom fork cases on the front of motorcycles is provided. The cover consists of a hollow, flexible sleeve of non-rigid plastic material which is contoured to the shape of the fork case. A longitudinal slit in the sleeve is provided to permit installation and removal of the sleeve. When made of the preferred material, plastisol, the sleeve is made by heating a form having the shape of the fork case, dipping the heated form in plastisol for a time dependent on the thickness of the coating desired, and then heat curing the coated form. The desired holes are cut in the coating with a heated gasket punch, the slit is made in the coating, and the coating is removed from the form.
    Type: Grant
    Filed: April 20, 1977
    Date of Patent: February 6, 1979
    Inventor: Keith H. Doyle
  • Patent number: 4135867
    Abstract: A uniquely contoured glove adapted to tightly conform to a wearer's hand is made by depositing an elastomeric material on a relatively flat glove form having recessed areas covering substantially the entire surface of the hand-forming and finger-forming portions of the form except for a peripheral edge surrounding the recessed areas. The resulting glove, when stripped from the form and reversed, has a hand portion, an open end cuff portion and a plurality of elongated finger-receiving compartments, each of said compartments and said hand portion having a transverse cross-sectional configuration formed by four outwardly curved sections connected by four inwardly curved sections.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: January 23, 1979
    Assignee: Arbrook, Inc.
    Inventor: Glenn F. Stockum
  • Patent number: 4133624
    Abstract: A molded glove defines a hand and wrist portion, with the wrist portion defining, in as-molded configuration, longitudinal channels positioned about its circumference. In accordance with this invention, a plurality of circumferential channels are defined on the wrist portion at the end remote from the hand portion, the circumferential channels crossing the longitudinal channels. The thickness of the glove along the longitudinal and circumferential channels is increased over the thickness of the glove in areas adjacent to the channels. The glove exhibits improved resistance to rolling down of the cuff while being worn, when compared with conventional gloves having longitudinal flutes or channels, gloves having beaded cuffs, and the like.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: January 9, 1979
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Paul W. Heavner, William E. LeMay