The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 15, 2013

Filed:

Mar. 28, 2007
Applicants:

Jose Lopez Almendros, Barcelona, ES;

Francisco Perez Soria, Barcelona, ES;

Angel Martinez, Barcelona, ES;

Inventors:

Jose Lopez Almendros, Barcelona, ES;

Francisco Perez Soria, Barcelona, ES;

Angel Martinez, Barcelona, ES;

Assignee:

Metalogenia, S.A., Barcelona, ES;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

Detachable fastening system between a male piece () and a female piece (), pin () and female piece (), specifically for use in machines for moving earth and stones. It is formed by a tooth () with a transverse aperture, a tooth holder () with another transverse aperture, a pin with an intermediate nipple, and an elastic tensor () located in a complementary cavity of the tooth holder (). The penetration and subsequent rotation of the pin () immobilizes it axially, as it is held in said angular position by the action of the tensor (). In addition, the pin () has at one end a projection that interacts with a groove ramped helicoidally and fitted in the aperture of the tooth in order to absorb the axial forces, by unloading the tensor () thereof, and also in order to limit the angular distance travelled by the pin between the blocking and unblocking positions, and in order to facilitate possible extraction thereof.


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