Robust compliant adaptive grasper and method of manufacturing same

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The President And Fellows Of Harvard College patent solves the following problem:

The present invention relates to robotic graspers or hands and, especially, a strong compliant underactuated mechanical grasper and method of manufacturing the same.

Our analysis of this patent is as follows:

President And Fellows Of Harvard College’s patent US 8231158 B2 deals with Robust compliant adaptive grasper and method of manufacturing same.
A multi-finger underactuated loud mechanical system driven by an actuator, but understood that covers a wide range of sizes, shapes, and mass. A member of the move to a link relative to a base act like a direction following a joint between the links and the base. joint has a plurality of the freedom. The number of members for removing links to loud system is less than the number of degrees of freedom in the system strong.

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Flexible thermoplastic composition with improved resistance to the effect of oils, and use of such a composition

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The Arkema France patent solves the following problem:

Described in the document WO 02/28959, in the name of the Applicant, is a grafted copolymer having polyamide blocks of a polyolefin backbone selected from ethylene / maleic anhydride and ethylene / alkyl (meth) acrylate / maleic anhydride copolymers, forming a co -Continuous nanostructured combination; It gives this copolymer exceptional thermomechanical properties, retained when redispersing this graft copolymer in flexible polyolefins such as flexible ethylene copolymers.

Our analysis of this patent is as follows:

Arkema France’s patent US 8227543 B2 deals with Flexible thermoplastic composition with improved resistance to the effect of oils, and use of such a composition.
The invention relates to a flexible thermoplastic compositions resistant to the aging effects of the oil, said composition comprising a grafted copolymer containing polyamide blocks and consists of a polyolefin backbone and at least one polyamide graft. According to the invention, the grafts were incorporated into the core of the residues of an unsaturated monomer (X) is a function of the reaction of a polyamide that consists of a wet end or a carboxylic acid end; the residues of the unsaturated monomer (X) is attached to the backbone by grafting or copolymerization from its double bond; and the composition contains between 40 to 90 wt% of polyolefin core containing unsaturated monomer (X); between 5 to 40 wt% of polyamide maayom; and between 5 to 40% of at least one polymer selected from a saponified ethylene / vinyl acetate copolymer and a polyamide.

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