114results about How to "Increased buckling strength" patented technology

A drawn aluminum can shell has a peripheral crown which is double-seamed with an end portion of an aluminum can body to provide a can end having a generally flat center panel connected by a curved panel wall to an inner wall of an annular U-shaped countersink. The countersink has a generally cylindrical outer wall and an inner width less than the radius of the panel wall. The outer wall of the countersink connects with a frusto-conical chuckwall at a junction below the center panel, and the chuckwall extends to an inner wall of the crown at an angle of at least 16° with the center axis. The chuckwall has an S-curved intermediate configuration, the inner width of the countersink is less than the radius of the panel wall, and the inner wall of the countersink extends at an acute angle relative to the outer wall.

A rigid spine-reinforced microelectrode array probe and fabrication method. The probe includes a flexible elongated probe body with conductive lines enclosed within a polymeric material. The conductive lines connect microelectrodes found near an insertion end of the probe to respective leads at a connector end of the probe. The probe also includes a rigid spine, such as made from titanium, fixedly attached to the probe body to structurally reinforce the probe body and enable the typically flexible probe body to penetrate and be inserted into tissue, such as neural tissue. By attaching or otherwise fabricating the rigid spine to connect to only an insertion section of the probe body, an integrally connected cable section of the probe body may remain flexible.

A tunable optical filter has a large diameter cane waveguide with “side-holes” in the cane cross-section that reduce the force required to compress the large diameter optical waveguide without overly compromising the buckling strength thereof. The large diameter optical waveguide has a cross-section of at least about 0.3 millimeters, including at least one inner core, a Bragg grating arranged therein, a cladding surrounding the inner core, and a structural configuration for providing a reduced bulk modulus of compressibility and maintaining the anti-buckling strength of the large diameter optical waveguide. The structural configuration reduces the cross-sectional area of the large diameter optical waveguide. These side holes reduce the amount of glass that needs to be compressed, but retains the large diameter.

A sandwich core material for a sandwich laminate is disclosed. The sandwich core material includes a number of flexible core material elements having a longitudinal structure. A flexible core material for a sandwich core material, a sandwich laminate and a wind turbine blade including such a sandwich core material are provided. In addition, the present a method of manufacturing such a sandwich core material is provided.

The invention discloses a corrugated steel web pre-flex assembled groove shape beam and a manufacturing method thereof. The assembled groove shape beam comprises a corrugated steel webs (1) located at two sides of the assembled groove shape beam, primary concrete bad plate (5) cast at the periphery of a lower flange steel plate (3), and a secondary concrete cast at the periphery of an upper flange steel plate (2) or connected with the upper flange steel plate (2) by a shear connecting piece (4), the upper parts of the corrugated steel webs (1) are connected with the upper flange steel plate (2), the lower parts of the corrugated steel webs (1) are connected with the lower flange steel plate (3), and the formed cross section is a groove shape structural beam. The assembled groove shape beam solves the problems of the complex stress condition of plate-beam joint position of common prestress concrete groove shape beam, the easy cracking of concrete, the complex structure of reinforcing bars of the plate-beam joint position and high construction difficulty, high requirements for construction technology and condition, the large occupied area of on-site casting construction, the long construction period, etc.

A board-to-board type RF plug comprises a plug body, plug terminals arranged in the plug body, a plug fixing piece surrounding the periphery of the plug body, a coaxial line, and a plug circuit boardconnecting the plug terminal and the coaxial line. The plug body comprises a body pedestal, a body outer wall, an island part and an insertion space, the periphery of the body pedestal extends upwardly to form the body outer wall in an integral way, the middle of the pedestal extends upwardly to form the island part in the integral way, the insertion space is formed between the body outer wall andthe island part, and the periphery of the body pedestal extends outwardly to form a platform part. The plug fixing piece comprises a fixing outer wall surrounding the periphery of the body outer walland a parallel bottom wall which is formed by extending vertically from the bottom of the fixing outer wall, and the parallel bottom wall is pasted to the platform part. The invention also provides aboard-to-board type RF socket and a board-to-board type connector assembly.

A structural member includes: a compression-side wall part disposed in a compressive stress field of a bend; a tension-side wall part disposed in a tensile stress field of the bend; and a coupling wall part that couples the compression-side wall part and the tension-side wall part. The neutral axis of the bend is disposed in the vicinity of the compression-side wall part. For example, the compression-side wall part is higher in material strength, and/or larger in sheet thickness, than the tension-side wall part.

A drawn aluminum can shell has a peripheral crown which is double-seamed with an end portion of an aluminum can body to provide a can end having a generally flat center panel connected by an inclined curved or straight panel wall to an inclined inner wall of an annular U-shaped countersink. The countersink has an outer wall which connects with an inclined lower wall portion of a chuckwall at a junction below the center panel, and the chuckwall has a curved or inclined upper wall portion which connects with an inner wall of the crown. The chuckwall also has an intermediate wall portion forming a break, and the inner bottom width of the countersink is less than the radial width of the panel wall. The inclined upper wall portion of the chuckwall extends at an angle greater than the angle of the inclined lower wall portion of the chuckwall.

Fuselage section of an aircraft whose structure comprises a skin (10), a plurality of frames (30) positioned transversely to the longitudinal axis of the fuselage and a plurality of longitudinal stringers (20); the stringers being configured with a closed transversal section comprising a hat (21), two webs (23, 25) and two feet (27, 29) joined to the skin (10); the frames (30) being configured in at least one its sectors with a foot (31) joined to the skin (10), a web (33) having holes at the crossing zones with said stringers (20), a cap (35) and a cap extension (37) which does not interfere with the stringers (20); the frames (30) being joined to, at least, the stringer hats (21) at their crossing zones.

A reinforcement device for compression buckling strength and a method of fastening the same are disclosed. The reinforcement device includes a member seating body surrounding an angle-type steel-frame member, first and second securing couplers securing opposite ends of the angle-type steel-frame member and opposite ends of the member seating body and adjustable to meet a standard of the angle-type steel-frame member, a horizontal engaging element connecting the first and second securing couplers with each other, a supporter positioned in a space where the angle-type steel-frame to member forms a right angle and supporting the angle-type steel-frame member, and a reinforcing bar connecting the supporter and the horizontal engaging element. The reinforcement device prevents an angle-type steel-frame member for a steel-frame structure or a steel power-transmission tower from undergoing compression buckling and accidental eccentricity, and improves compression buckling strength without power interruption of transmission lines, member disassembly, or field preparation.

The present invention is to provide a load bearing frame for suppressing generation of buckling of diagonal materials and breakage of connection parts and having high deformability.

A load bearing frame 1 has two pillar materials 2 and 3, two frame materials 4 and 5 and four diagonal materials 6 to 9. A connection point 41 between the pillar material 3 and the frame material 4 is apart from a connection point 43 between the diagonal material 6 arranged on the uppermost side and the pillar material 3 by a distance L1. A connection point 48 between the pillar material 3 and the frame material 5 is apart from a connection point 47 between the diagonal material 9 arranged on the lowermost side and the pillar material 3 by a distance L2.

The invention provides an engagement chain in which a buckling strength of a pair of engagement chains engaged with each other is improved without blocking engagement operations between inner tooth plates and between outer tooth plates, the operation burden applied during the plate shaping of inner tooth plates and outer tooth plates is reduced, and the chain state of the pair of intermeshed engagement chains can be reliably held even when it is used in the drive device taking the ceiling surface as the setting surface or the drive device taking the perpendicular wall surface as the setting surface. The chain includes inner tooth plates, bushes, outer tooth plates and connecting pins. Buckling limiting flat surfaces of adjoining plates are brought into surface contact with each other whenopposing segments of the chain are integrated together by driving sockets.

The invention discloses a fireproof curtain wall system. The fireproof curtain wall system comprises a fireproof panel, a keel, a fastening bolt, a steel pressing plate and a decorative cover, wherein the fastening bolt penetrates through the steel pressing plate and is connected with the keel; the fireproof panel is pressed against the keel through the steel pressing plate; the decorative cover is buckled on the steel pressing plate; bending parts of which openings face the fireproof panel are arranged on two sides of the steel pressing plate; fastening parts which extend inwards are arranged on the two sides of the decorative cover and are buckled at the bottom ends of the outer side walls of the bending parts; the outer side walls of the bending parts are attached to the inner side wall of the decorative cover. The fireproof curtain wall system has the advantages of simple structure, simple formation, low cost and high buckling strength.