Patents by Inventor Werner Abele

Werner Abele has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • SCISSORS
    Publication number: 20080178472
    Abstract: Scissors comprising two scissor components, which are connected via a pivot, and a spring whose spring effect forces the two scissor components apart into an open position. In order to make such scissors more universally usable, means (10) for disabling the spring effect are also provided.
    Type: Application
    Filed: October 23, 2007
    Publication date: July 31, 2008
    Applicant: WMF WURTTEMBERGISCHE METALLWARENFABRIK AG
    Inventors: Werner Abele, Werner Mang
  • Photopolymerizable printing plate for flexographic printing
    Patent number: 5213948
    Abstract: A photopolymerizable printing element comprising a photopolymerizable layer and an elastomeric layer applied thereon wherein said elastomeric layer further comprises at least one thermoplastic, elastomeric block copolymer and at least one polymer with a structural unit containing a maleic acid half ester group. The element produces flexographic printing plates having improved printing performance with aqueous and alcoholic printing inks.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: May 25, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Werner Abele
  • Photopolymerizable printing plate for flexographic printing
    Patent number: 5210004
    Abstract: A photopolymerizable printing element comprising a photopolymerizable layer and an elastomeric layer coated thereon wherein said elastomeric layer contains at least one thermoplastic, elastomeric block copolymer and at least one reaction product of an epoxide resin with a rosin derivative. The element produces flexographic printing plates having improved printing results with aqueous and alcoholic printing inks.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: May 11, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Werner Abele
  • Process for toning image-wise modified surfaces
    Patent number: 4461822
    Abstract: Process for toning imagewise tacky surfaces by multiple application of at least two toners containing different low melting compounds having a polar substituent and melting in the range of 25.degree. to 110.degree. C., which in contact with one another render the toners tacky at room temperature thus yielding higher color density or change of color tone.
    Type: Grant
    Filed: September 15, 1983
    Date of Patent: July 24, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Werner Abele
  • Photosensitive reproduction elements for forming negative tonable images
    Patent number: 4358529
    Abstract: A nonsilver photosensitive reproduction element which comprises a support bearing a layer of a photosensitive composition which comprises (1) at least one thermoplastic binder, (2) a photosensitive system consisting essentially of (a) a hexaarylbiimidazole compound and (b) a dihydropyridine compound; and optionally (3) a plasticizer, and (4) a thioamide, thiolactam or thiocarbanilic acid ester of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are as defined. The photosensitive element is useful in preparing negative tonable images.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: November 9, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Werner Abele
  • Negative tonable photosensitive reproduction elements
    Patent number: 4346162
    Abstract: A nonsilver photosensitive reproduction element for preparing negative tonable images which comprises a support bearing a layer of a photosensitive composition which comprises at least one thermoplastic binder, at least one thio compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are as defined, and at least one hexaarylbisimidazole compound as defined. Optionally plasticizers, stabilizers, etc. can be present in the photosensitive layer. The photosensitive element is useful in preparing negative tonable images.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: August 24, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Werner Abele
  • Positive nonsilver washout systems containing dihydropyridines and photooxidants
    Patent number: 4271260
    Abstract: Process for preparation of positive images which comprises exposing imagewise a supported layer of a photosensitive composition comprising an alkali-soluble polymeric binder, at least one dihydropyridine compound and at least one hexaarylbiimidazole compound and developing by washing out the exposed image areas. Optionally auxiliary layers can be present between the support and photosensitive layer. The photosensitive elements are useful in preparing positive working printing plates and photoresists.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: June 2, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Werner Abele, Mario Grossa, Otto Pilz
  • Negative tonable systems containing dihydropyridines and photooxidants
    Patent number: 4243741
    Abstract: A photosensitive element for preparing negative tonable images which comprises a support bearing a layer of a photosensitive composition comprising a thermoplastic binder, at least one dihydropyridine compound and at least one hexaarylbiimidazole compound. Optionally softeners and sensitizer can be present in the photosensitive layer. The photosensitive element is useful in preparing negative tonable images.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: January 6, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Werner Abele, Mario Grossa
  • Process for hardening photographic silver halide emulsions
    Patent number: 4124397
    Abstract: A process for hardening photographic gelatino-silver halide emulsions with glutaraldehyde or substituted glutaraldehydes.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: November 7, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Werner Abele, Wolfgang Pistor, Manfred Schmidt, Harry O. Smith, Nils Spannhake