Patents by Inventor Horst Heidsiek

Horst Heidsiek 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).

  • Eyeglass frames made of Ni alloy
    Patent number: 4624832
    Abstract: New nickel alloys are described which are useful for eyeglass frames, which alloys in addition to good resistance to corrosion also have good workability properties. They contain 5 to 20 percent copper and 5 to 30 percent zinc. Optionally, they can also be alloyed in small amounts other metals such as manganese, silicon, beryllium, cobalt, aluminum, niobium, tantalum, or titanium.
    Type: Grant
    Filed: November 2, 1984
    Date of Patent: November 25, 1986
    Assignee: Degussa Aktiengesellschaft
    Inventors: Horst Heidsiek, Gernot Jackel, Horst Becker
  • Material for low voltage current contacts
    Patent number: 4579787
    Abstract: Low voltage current contacts should have good tarnish resistance and resistance to wear at the smallest possible gold content. Such materials consist of 330 to 50 wt. % palladium, 18 to 48 wt. % silver, 19 to 33 wt. % gold, 0.01 to 1 wt. % iridium, osmium, or a mixture of iridium and osmium and either 0.5 to 5 wt. % lead or a mixture of 0.5 to 3 wt. % lead and 0.1 to 3 wt. % tin.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: April 1, 1986
    Assignee: Degussa Aktiengesellschaft
    Inventors: Horst Heidsiek, Hartmuth Schmidt
  • Material for jewelry and commodities and process for its production
    Patent number: 4476090
    Abstract: There is described a new material for jewelry and commodities which has a relatively low density and also is low carat but resistant to oxidation and corrosion. It consists of a noble metal or alloy and 1 to 70 volume % glass, whereby as glass there is used a glass frit having a transformation temperature of 300.degree. to 500.degree. C. and a softening interval of over 80.degree. C. There is also described a process for its production.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: October 9, 1984
    Assignee: Degussa Aktiengesellschaft
    Inventors: Horst Heidsiek, Gernot Jackel