Patents by Inventor Paolo Gregorutti

Paolo Gregorutti 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).

  • Patent number: 4665589
    Abstract: A fastener for openable and closable side clips for antiskid chains for motor vehicle tires is provided, in which to each end of a side clip is fixed an end portion with a platelike body which, in the fitted state of the chain, is oriented substantially parallel to the side of the vehicle tire. There are further provided a hook and a hooking-in opening on each platelike body in such a way that the hook of one body can be brought into operative engagement with the hooking-in opening of the other body in the locking position. Each hook is constructed in the form of a tongue projecting from the plate-like body so as to slope counter to the closing direction.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: May 19, 1987
    Assignee: Acciaierie Weissenfels S.p.A.
    Inventor: Paolo Gregorutti
  • Patent number: 4648434
    Abstract: Antiskid device for motor vehicle tires with an inner fastening or mounting engaging with the inside of the tire and with an inner fastening or mounting for chain strand portions extending over the tire tread, in which in the fitted state, the inner fastening has an approximately circular construction and has a central fastening section, to each of whose two ends is swivellably fixed a side part by means of a swivel joint and for fitting the inner fastening, the side parts can be opened outwards from the central fastening section and are in each case pretensioned by means of a spring device in the direction of a closed form of the inner fastening. In order to further facilitate fitting, particularly in the case of narrow or confined wheel cases, it is provided that the central fastening section comprises at least two portions, which are interconnected in a swivellable manner relative to one another and are also pretensioned in the direction of a closed form of the inner fastening.
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: March 10, 1987
    Assignee: Acciaierie Weissenfels S.p.A.
    Inventors: Carlo Melzi, Paolo Gregorutti
  • Patent number: 4588010
    Abstract: An anti-skid device for motor vehicle tires is provided including front and rear holding devices, which lie against the inside and outside of the tire when the chain is mounted, and between which chain strand sections extend over the running surface of the tire. One of the holding devices which usually is the rear holding device in the mounted state, is essentially circular and has a rigid middle section and two rigid side sections, one end of each of which is attached by pivotal connections to an end of the middle section in such a way that it can be pivoted. Pretensioned spring devices are provided at the pivot connections to bias the side sections toward each other in the mounted condition after the rear holding device is passed over the tire with the side sections pivoted outwardly. Locking devices for securing the two ends of the side sections together in the mounted position are also provided.
    Type: Grant
    Filed: February 7, 1984
    Date of Patent: May 13, 1986
    Assignee: Acciaierie Weissenfels S.p.A.
    Inventors: Carlo Melzi, Paolo Gregorutti