2617 results about "Spring steel" patented technology

An artificial spinal joint, consisting of a flexible or rigid member or a pair of moveably-joined, flexible or rigid segments, is formed into a spring-like shape, whose distal ends have feet with slots through which screws can be inserted to attach the artificial joint to vertebra whose facets (joints) are non-functional. The artificial spinal joint is able to prevent subluxation of the spine, while retaining the mobility of the spine and permitting angular deflection of the vertebra above and below a non-functional spinal joint. A jig is used to position tools and make passageways for screws to attach the artificial spinal joint to the vertebra or its pedicles or facets in a minimally invasive procedure. The rigid members or segments are bio-compatible and may be made of titanium, a titanium alloy, tantalum, medical grade stainless steel or carbon fibers in a matrix of a rigid, durable plastic. The flexible members or segments may be made of spring steel coated with a durable, bio-compatible material, small diameter carbon fibers in a flexible, durable plastic matrix, or a single shape or dual shape, superelastic memory metal. The feet, made of any of the rigid or flexible materials described above, may also be moveably attached to the proximal ends of the members or segments. Having the feet moveably attached to the segments facilitates insertion of the artificial spinal joint into the body by folding the feet parallel to the axis of the segments during insertion, and then unfolding the feet for attachment to the vertebra or its pedicles or facets. The artificial spinal joint may be inserted and attached to vertebra whose facets are non-functional in minimally invasive, moderately invasive or conventional surgical procedures.

According to the present invention there is provided a snap in locking cable connector with a cylindrical housing having an entry end aperture and an exit end aperture. The entry end aperture can accept the snap-in spring steel adapter of U.S. Pat. No. 6,080,933 as well as the exit end peripheral spring steel locking ring described in this patent to provide a connector that allows rapid and simplified installation of armored cable into a junction or circuit box. The cylindrical housing includes an annular groove or ridge about the inner periphery thereof in the area of the entry end for retention of the spring steel adapter. An electrical cable connector of this type that relies upon frictional or interference fit for retention of the spring steel adapter is also described. Retention of the spring steel adapter with a screw, rivet or similar fastener is also described.

A face mask support for CPAP comprising a hemispheric cap with biasing means support at the medial line of the head. The circumferential edge of the cap extends from the high forehead to below the inion protrusion at the nape of the neck. A biasing means which is preferably of a length of spring steel is formed so as to extend from the biasing means support to form a loop around a face mask. The biasing means may be adjusted to accommodate facial configurations and to vary the pressure with which the face mask is apposed to the face. In an alternative embodiment, the support is open and is comprised of a circumferential band extending from the middle of the forehead to below the inion protrusion and a medial band extending along the medial line of the head and connecting to the circumferential band at the middle of the forehead and below the inion protrusion.

A snap in locking cable connector is composed of two mating pieces that snap together and provide a connector for armored or metal clad electrical conductors. One piece includes a member including a smooth outer cylindrical section having an inner diameter that may accommodate a spring steel adaptor with flanges to hold the spring steel adaptor in place. The spring steel adaptor is used in conjunction with an electrical junction box to fix the location of the locking cable connector with respect to the junction box. Another piece includes a spring steel locking ring provided to receive an armored cable and lock into the member. The spring steel locking ring has tangs allowing unidirectional insertion into the member and restricting withdrawal motion from the member. The spring steel locking ring also includes oppositely directed tangs to permit reception of the armored cable in one direction and restrict its movement in the reverse direction.

A collapsible sun shade adapted to be used with a chair is disclosed. The shade is made of spring steel or equivalent material and is adapted to be affixed to cover the seat portion of a lounge chair. The shade is unfolded under the force of the compressed spring and attached to the chair to provide shade over the seat of the chair.

A sash lock apparatus which includes a keeper disposable on a first window sash and having a keeper aperture therein for lockingly receiving therein a selectively retractable element from a sash lock and the sash lock having the selectively retractable element disposable on a second window sash wherein the first and second window sashes are disposed for movement in a direction parallel to each other. The sash lock includes a rotatable lever having a tab extending therefrom and a spring slide deformable by rotation of the rotatable lever and movement of the tab against the spring slide for selectively causing a portion of the spring slide to enter and retract from the aperture to cause locking and unlocking of the first and second window sashes relative to each other. The spring slide includes a central aperture, the tab extending into the central aperture, rotation of the tab with the rotatable lever causing deformation of the spring slide and one of movement of the spring slide into or out of the keeper aperture. The housing has a shaft secured to the spring slide, the rotatable lever being rotatable about the shaft. The spring slide is preferably a spring steel slide. The apparatus may further include a member having member detents therein and secured to the shaft and rotatable member detents disposed on the rotatable member for entry into at least one selected member detent upon rotation of the rotatable member to one of an open or closed position.

A bone anchor device for attaching connective tissue to bone comprises a disk adapted for insertion into a portion of bone to which the connective tissue is to be attached. The disk is movable between a bent orientation for presenting a smaller cross-section and an expanded orientation for presenting a larger cross-section. The bent orientation is utilized for inserting the disk through a small hole into a region of cancellous bone beneath the cortical bone layer, after which the disk is actuated to its expanded orientation so that it will be permanently anchored in the cancellous bone, as it will be too large to return proximally through the hole in the cortical bone layer. Two embodiments are disclosed. In a first embodiment, the disk is initially formed in the expanded orientation, of spring steel. In a second embodiment, the disk is initially formed in the bent orientation, and spring steel is not required.

The invention discloses a production process of a 65 Mn spring steel wire rod and a 65 Mn spring steel wire rod. According to the invention, advantages of a device of a high line set are utilized, a finish rolling and reducing-sizing mills adopt 8+4 type, through optimization of a heating cycle process before rolling, a rolling control process and a cooling control process, only 8 front finish rolling machines and 2 reducing-sizing mills are utilized, so that surface decarburization of a spring is reduced and is even removed, and the fatigue life of a finished spring is prolonged; the amount of scales is reduced and the metal yield is improved; a metallographic structure is improved and a high sorbite rate is obtained, so that the production process has conditions to cancel a lead patenting process at the earlier drawing stage, the production processing cost is reduced, and the metallographic structure and the comprehensive performance of a hot-rolled wire rod for the 65 Mn spring steel are optimized. According to the invention, the microstructure quality and the mechanical property of the produced hot-rolled wire rod with phi6.5 mm for the 65 Mn spring steel reach the standard of the conventional 65 Mn spring steel after lead hot-rolled wire rod for the 65 Mn spring steel, the conditions to cancel the lead patenting process at the earlier drawing stage by a downstream user can be satisfied, a processing process is reduced for a user, and the production cost is reduced.

The invention discloses a high-strength and a high-toughness spring steel. The spring steel comprises the following chemical elements in percentage by mass: 0.34-0.49% of C, 1.00-2.80% of Si, 0.60-1.50% of Mn, 0.50-2.0% of Cr, 0.1-0.5% of Ni, 0.05-0.5% of Mo, 0.05-0.20% V, 0.0035-0.0065% of N, 0.0015-0.035% of Al, 0.0005-0.01 % of RE, 0.0005-0.005% of Ca, 0.005-0.0080% of O, and the balance of Fe and inevitable impurity wherein the following formulas are satisfied, Si+0.75*(Mn+Cr)+0.6*(Ni+Mo) is larger than or equal to 3.0%, Al/O is larger than or equal to 4.0, and RE+0.75*Ca is larger than or equal to 0.002%. Correspondingly, the invention further discloses a manufacturing method of the high-strength and high-toughness spring steel.

An electronic communication device for a tire includes a radio device and an antenna intended to be attached to or embedded in a tire, the antenna being spirally or helically shaped to absorb tensile and bending stress applied by the tire. The antenna body may be a wire formed of spring steel, brass or zinc coated spring steel, or spring brass. A coating of insulating material coats the radio device and antenna for mounting on or in, and operation in, a tire structure.

A power/security cord for use in a retail display includes the combination of at least one spring steel strand and at least one conductor coiled into the shape of a “curly-Q” cord. The steel strand provides a physical barrier against cutting the cord. The conductor provides wiring for power.

The invention provides a spring steel used for an automobile suspension. the spring steel comprises the following ingredients in percentage by weight: 0.46-0.56% of C, 0.90-1.20% of Si, 0.80-1.20% of Mn, less than or equal to 0.020% of P, less than or equal to 0.020% of S, 0.70-1.0% of Cr, 0.90-1.50% of Ni, 0.60-0.90% of Mo, 0.50-0.80% of Cu, 0.02-0.07% of RE and the balance of Fe and inevitable impurities. The invention also provides a preparation method for the spring steel and a method for preparing a spring steel wire by using the spring steel. According to the invention, the chemical components of the spring steel are reasonably designed, and the smelting rolling and steel wire preparation method and the auxiliary material adding method and proportion are improved. Compared with the existing 55SiCr steel, the tensile strength of the spring steel disclosed by the invention is improved by 400MPa, the working stress is improved by 200MPa, and the fatigue life is improved by 200 thousand times.

The present invention provides a high strength steel used for spring steel that has excellent hydrogen embrittlement resistance. The high strength steel which spring steel having excellent hydrogen embrittlement resistance comprises 0.20 to 0.60% of C, 1.0 to 3.0% of Si, 1.0 to 3.5% of Mn, higher than 0% and not higher than 1.5% of Al, 0.15% or less P, 0.02% or less S, and balance of iron and inevitable impurities and the structure includes: 1% or more residual austenite; 80% or more in total of bainitic ferrite and martensite; and 10% or less (may be 0%) in total content of ferrite and pearlite in the proportion of area to the entire structure, and also the mean axis ratio (major axis/minor axis) of the residual austenite grains is 5 or higher and the steel tensile strength is 1860 MPa or higher.

The present invention provides a spring steel showing a sufficient reduction in area and an impact toughness while the steel has a high strength, in particular a tensile strength as high as at least 1,500 Mpa. A high toughness spring steel according to the present invention comprises, based on mass, 0.45 to 0.85% of C, 0.9 to 2.5% of Si, 0.1 to 1.2% of Mn, 0.1 to 2.0% of Cr, 0.005 to 0.07% of Ti, 0.001 to 0.007% of N, the Ti content being greater than four times the N content in terms of percent by mass, 0.0005 to 0.0060% B, at least one of 0.0005 to 0.01% Mg, 0.0005 to 0.01% La, and 0.0005 to 0.01% Ce, P and S with restrictive contents of less than 0.020% and less than 0.020%, respectively, and the balance of Fe and unavoidable impurities, and selectively contains V, Nb, Ni, Mo and Cu. The percent area of oxides and sulfides is not more than 0.1%.

The invention discloses spring steel. Based on the total weigh of the spring steel, the spring steel comprises 0.56 to 0.64 weight percent of C, 1.6 to 2 weight percent of Si, 0.6 to 0.9 weight percent of Mn, 0 to 0.015 weight percent of Ti, 0.0055 to 0.03 weight percent of S, 0.01 to 0.02 weight percent of Als and the balance of Fe and inevitable impurities, wherein the weight ratio of the S to the Als is 0.55 to 3; and the Als is acid soluble aluminum. The invention also provides a preparation method of the spring steel, which comprises: subjecting the raw material of the spring steel to primarily smelting, refining, cold forming, rolling, quenching and tempering, wherein the composition of the raw material of the spring steel ensures the composition of the spring steel obtained is the same as the composition of the spring steel of the invention. The spring steel is high in fatigue resistance. The production method is simple and reduces cost.

A funnel assembly includes a collapsible funnel mounted to a base. The funnel is formed by consecutive windings of spring steel wire. Each winding has a reduced diameter so that the windings collectively form a funnel having a conical shape and an inherent bias. The funnel is confined into a relatively small storage space and the funnel is compressed when a cap releasably engages the base. Upon disengaging the cap from the base, the bias unloads and fully deploys the funnel. A downspout depends from the base and engages the fill spout of an oil crankcase so that the funnel assembly is mounted to the fill spout. A user therefore does not hold the funnel assembly while pouring oil from a can into the deployed funnel. By holding the base in one hand and the cap in the other, a user may deploy the funnel and return it to storage without touching the funnel.

The invention relates to spring steel and a production process thereof, in particular to 55Si2MnVNbN spring steel and a production process thereof. The 55Si2MnVNbN spring steel comprises the following components in percentage by weight: 0.52 to 0.60 percent of C, 1.60 to 1.90 percent of Si, 0.60 to 0.80 percent of Mn, 0.15 to 0.35 percent of Cr, 0.06 to 0.12 percent of V, 0.015 to 0.025 percent of Nb, 0.80 to 1.50 percent of N, less than or equal to 0.0035 of P, less than or equal to 0.0035 percent of S and the balance of Fe and inevitable impurities. The process comprises electric furnace electrosmelting, LF refining, VD furnace vacuum degassing, continuous casting and rolling. The spring steel can meet the requirements of springs on various severe working environments, high strength and long service life and has high tensile strength, high delayed fracture resistance, high corrosion resistance, high fatigue resistance and high elasticity attenuation resistance.

A spring steel which is superior in both shaving properties and green drawing properties, which are important in spring production. A process for making the spring steel into wire rods for good springs. A rolled spring steel superior in workability characterized in that it has the following mechanical properties.Tensile strength<=1200 MPa30%<=reduction of area<=70%A process for producing a steel wire rod for springs from said spring steel, said process comprising drawing, shaving, and oil tempering, which are carried out sequentially, said drawing being optionally followed by prescribed treatment.