Patents by Inventor Ion Cimpoias

Ion Cimpoias 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).

  • Device for maintaining an upright position of the body of a harvester-thresher machines
    Patent number: 4050704
    Abstract: A harvester-thresher machine having a body flanked by a pair of hydraulic cylinders for tilting the body of the machine into an upright position in response to a tilt of the harvester-thresher, the cylinders being selectively connected to a source of pressurized liquid whose rate of flow is automatically adjusted in response to the degree of tilt of the machine.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: September 27, 1977
    Assignee: Institutul de Cercetari si Proiectari de Masini Agricole-ICPMA
    Inventors: Mihail Duca, Dan Vasiliu, Teodor Demetrescu, Ion Cimpoias, Ion Linca, Stefan Breazu, Virgil Antonescu, Iosif Cojocaru
  • Device for automatic adjustment of the position of the cutting platform of a grain harvesting machine
    Patent number: 4035997
    Abstract: A device for the automatic adjustment of the position of the cutting platm of a grain-harvesting machine has a hydraulic cylinder attached both to a harvester body and to the cutting platform, the cylinder being supplied with oil under pressure from a pump by means of a differential distributor driven by feelers (sensors) mounted at the ends of the cutting platform.The differential distributor of the device, according to the invention is made up of a body provided with holes by means of which the distributor is connected to the pump to an oil tank and to the cylinder; inside the body, a casing and a plug are mounted. The casing is provided with holes which when the cutting platform is parallel with the soil register with holes in the plug which has a diametral channel, and with peripheral channels through which the oil passes when the cutting platform is not parallel to the soil.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: July 19, 1977
    Assignee: Institutul de Cercetari si Proiectari de Masini Agricole - ICPMA
    Inventors: Mihail Duca, Dan Vasiliu, Teodor Demetrescu, Ion Cimpoias, Ion Linca, Stefan Breazu, Virgil Antonescu, Iosif Cojocaru