Patents by Inventor Rolf Ritter

Rolf Ritter 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).

  • Publication number: 20170132555
    Abstract: Present invention discloses a semi-automated computer implemented system and method that in combination with human expertise assures the best suited available worker for a customer's project or task on any internet based platform. This invention provides for a database of vetted workers evaluated on various criteria and a list of standard works that are weighed against the requested work to determine project fit rate. It also, comprises of a software tool for the customer to specify the work and a machine-learning algorithm that will match the requested work to a standard work and propose the worker that best fits to the work. The system calculates project fit rate and worker suitability and based on it proposes if a fully automatic assignment of work to the worker is the best solution or a human has to assure the perfect assignment. This system aims at providing precise matching results in less time and reducing the transaction cost by continuously improving its own performance by critical evaluation.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 11, 2017
    Inventor: Rolf Ritter
  • Patent number: 4993315
    Abstract: A coffee percolator having a brewing chamber wherein at least one of the boundary wall surfaces of the brewing chambr is adjustable transversely of the direction of flow of the hot water through the coffee powder so that the thickness of the coffee powder bed in the direction of flow may be kept substantially constant for the coffee charges of varying size. The coffee percolator may include a brewing sieve having a support sieve with openings of a size exceeding the dimensions of the ground coffee particles and a fine sieve supported on the side of said support sieve facing towards the brewing chamber and having openings of a size smaller than the dimensions of the ground coffee particles.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: February 19, 1991
    Assignee: WMF Wurttembergische Metallwarenfabrik AG
    Inventors: Siegfried Huber, Hans Motsch, Hermann Riegert, Rolf Ritter, Erwin Scholl, Konrad Walter, Gehard Wittlinger
  • Patent number: 4147918
    Abstract: A method of making knives in which a separate blade and handle are bonded together by electron-beam welding which reduces the susceptibility to corrosion at the weld area and thereby increases the knife life. In addition, the blade can be unhardened when welded, and hardened after welding to reverse any structural changes occurring in the metal adjacent the weld and thereby more reliably reduce the susceptibility to corrosion at the weld area. The step of hardening the blade after welding can be used to provide satisfactory corrosion resistance in knives where separate blades and handles are joined by other welding techniques such as electrical seam and oxyacetylene welding.
    Type: Grant
    Filed: May 4, 1977
    Date of Patent: April 3, 1979
    Assignee: Wurttembergische Metallwarenfabrik
    Inventors: Rolf Ritter, Hermann Riegert