Patent application number | Description | Published |
20080304923 | TOOL FOR CHIP REMOVING MACHINING AS WELL AS A BASIC BODY THEREFORE - A tool for chip removing machining, including a long narrow basic body having an envelope surface which is concentric with a center axis, and two opposite ends, and a replaceable loose top which is connected to the basic body via a first coupling that includes a first seating formed in one end of the basic body and a first male element formed in one end of the loose top. The basic body includes a primary part body made of a first material having a first modulus of elasticity, and a secondary part body which includes the first seating and is made of a second material having a second modulus of elasticity which is lower than the first modulus of elasticity. The two part bodies of the basic body are interconnected via a second coupling which includes a second seating in the secondary part body as well as a second male element that is formed on the primary part body and has one or more precision machined flank surfaces that are arranged to apply, together with one or more co-operating and precision machined flank surfaces of the second seating, joining axial forces to the part bodies by turning the part bodies in relation to each other. | 12-11-2008 |
20100014928 | Tool for chip removing machining as well as a part and threaded joint therefor - A cutting tool, and a loose top therefore, includes two parts detachably connected to each other via a threaded joint in which co-operating male and female threads are included in the form of helicoidal ridges. The profile shape of each helicoidal ridge is defined by a top and two flanks, which delimit a helicoidal groove having a bottom. The first flank is inclined in relation to a center axis of the tool at a first angle that is smaller than a second angle of the second flank in relation to the center axis. Accordingly, the thread ridge is reinforced in comparison with thread ridges having a symmetrical profile shape, whereby larger tensile forces than compressive forces can be applied to the threaded joint while avoiding damage to the thread ridges. | 01-21-2010 |
20110274506 | INDEXABLE MILLING INSERT FOR MILLING TOOLS - An indexable milling insert for milling tools, including a bottom surface, an opposite chip surface, and a plurality of side surfaces extending between the bottom surface and the opposite chip surface, two of the side surfaces being primary clearance surfaces and two of the side surfaces being secondary clearance surfaces. A plurality of cutting edges are formed between the opposite chip surface and the primary and secondary clearance surfaces. Two of the cutting edges that connect to the primary clearance surfaces are primarily parallel and constitute main cutting edges. At least one lock structure is provided and includes a locking surface arranged on one of the secondary clearance surfaces so that the locking surface and the primary clearance surface form an acute angle, α, in a section that is parallel to the bottom surface and intersects the locking surface. A coupling structure is arranged on the opposite chip surface and at least partly projects from a plane that is parallel to the bottom surface and passes through points of the main cutting edges situated closest to the bottom surface. The coupling structure comprises at least one flank surface, which is arranged in such a way that the flank surface, in a section that is parallel to the primary clearance surface and intersects the flank surface, forms an acute angle, β, with the bottom surface so that the flank surface slopes in the direction from the secondary clearance surface on which the locking surface is arranged. | 11-10-2011 |
20130136550 | ROUND TOOL BLANK AND METHOD AND DEVICE FOR MAKING THE SAME - The present invention relates to a method and a device for manufacturing a blank for a round tool and to a blank for a round tool, and eventually to a method for manufacturing a round tool and to a round tool obtained. The device comprises a die for extrusion and a sleeve arrangement comprising a sleeve, and an end member for closing the sleeve in one end. Extrusion through the die continuously forms an extruded material comprising chip flutes and optionally internal coolant channels, which is received by the sleeve arrangement. The extruded material received by the sleeve arrangement is reworked and shaped to a shank portion after the interior shape of the sleeve arrangement. A projection of the end member protruding into the sleeve forms a bore in the blank. When the shank portion is finished the end member is released and moved forward as extrusion continues to form a fluted portion to complete the blank. The material waste is minimal in this process and since the internal coolant channels are formed simultaneously with the chip flutes in the fluted portion there is no risk of deforming the internal coolant channels. Moreover, a bore in the round tool removes unnecessary material and provides improved design of internal coolant channels. | 05-30-2013 |
Patent application number | Description | Published |
20140032913 | METHODS AND APPARATUS FOR VALIDATING A DIGITAL SIGNATURE - Various embodiments include one or more of systems, methods, software, and data structures for validating a digital signature, wherein common information in a certification chain is maintained in one entry of a Document Secure Store (DSS). The DSS separates the Long Term Validation (LTV) information from the digital signature, allowing amendment of and addition to the LTV information in the DSS after a digital signature is applied to a document. | 01-30-2014 |
20140040611 | Distributed Validation of Digitally Signed Electronic Documents - Systems and methods are presented for distributed validation of a digitally signed electronic document. A computing device accesses both a representation of the electronic document and a digital signature for the electronic document that includes a digest generated by the digital signature's creator by applying a one-way function to the electronic document. The computing device applies the same one-way function to the accessed representation of the electronic document to generate a new digest, and includes both the digital signature and the new digest in a request sent to a separate validation server. The request does not include the electronic document. The validation server generates validation results that depend on comparing the digest from the digital signature with the new digest, and that do not depend on having the electronic document available to the validation server. The computing device receives the validation results from the separate validation server. | 02-06-2014 |
20140149735 | DISTRIBUTIVE COMPUTATION OF A DIGITAL SIGNATURE - A method and apparatus are presented to perform a distributive computation of a digital signature in a document signing process. A signing request from a remote device initiates the document signing process including the distributive computation. The server verifies digital certificates corresponding to a signer's public key. An encryption request including a set of authenticated attributes and a hash value based on the to-be-signed content is transmitted to the remote device. A signer at the remote device encrypts the hash value in the encryption request with an encryption process utilizing a private key. The resulting encrypted hash value is transmitted to the server to produce the digital signature used to sign the subject content. This distributive computation process minimizes the amount of data transmitted between devices, while minimizing remote device resource requirements, and maintains the integrity of the signer's private key during generation of the digital signature. | 05-29-2014 |
20140351910 | Authorizing Access by a Third Party to a Service from a Service Provider - Systems and methods are provided for authorizing third-party access to a specific service from a service provider. In an example embodiment, a server system identifies a shared service from multiple services provided by the server system. The shared service is specified by an authorizing entity. The server system provides a credential associated with the shared service and the authorizing entity. The server system receives a request to access the shared service from a requesting entity that is separate from the authorizing entity. The server system verifies that the request includes the credential and that the credential is associated with the shared service and the authorizing entity. The server system provides access to the shared service to the requesting entity based on verifying that the request includes the credential. The requesting entity is restricted to accessing the shared service identified by the credential as authorized by the authorizing entity. | 11-27-2014 |