A linear compressor includes: a shell; a cylinder provided inside the shell; a frame coupled to an outer side of the cylinder; a piston configured to reciprocate in an axial direction; a motor that supplies power to the piston; and a spring mechanism coupled to the piston. The spring mechanism includes: a support connected to the piston and including a spring support unit having one or more insertion holes; a first coupling protrusion that extends from the rear side of the spring support unit along the edge of the insertion hole; a support cap inserted into the insertion hole and including a second coupling protrusion protruding from the front side of the spring support unit; a first resonant spring inserted into the outer circumferential surface of the second coupling protrusion; and a second resonant spring inserted into the outer circumferential surface of the first coupling protrusion.

A refrigerant compressor includes a hermetically sealed housing and includes a drive unit; wherein the drive unit is arranged in the interior of the housing and is attached, by way of at least one spring element, to at least one mounting region of the housing with mounting action; wherein a first mounting element and a second mounting element are provided; wherein one of the two mounting elements is connected to the drive unit and the other of the two mounting elements is connected to the mounting region. The first mounting element is of sleeve-like form and has an inner wall, and the second mounting element has a bolt-like section, wherein the bolt-like section is received at least in sections in the first mounting element, whereby an overlap region is formed, in which overlap region a gap is formed between the bolt-like section of the second mounting element and the inner wall of the first mounting element.

A seat member has a seat portion, a receiving surface of which comes into contact with a bearing surface of an end turn portion, a mounting shaft portion protruded from the receiving surface of the seat portion, and an enlarged diameter portion formed at the front end of the mounting shaft portion for guiding press-fitting, in a cross section along an axial direction of a coil spring, an outer diameter of the enlarged diameter portion is set larger than an inner diameter of the end turn portion and an axial length of the enlarged diameter portion is set so that at least a maximum diagonal length of the seat member is larger than an inter-element wire distance.

An energy-absorbing structure for a tether line includes a helical spring and a first connector for securing a first end of the helical spring to a first fastener (such as a support cable section, an eye bolt or an eye nut). The first connector has an externally threaded portion for threadedly receiving the first end of the helical spring. A sleeve is provided on the connector, extending over at least part of the first end of the helical spring and the external threaded portion of the connector, for retaining the helical spring on the connector. Additionally or alternatively, the connector includes a tapered portion extending from the inner end of the externally threaded portion.

A system and method of construction based on rods and coils, that includes multiple parts comprising: distinct apparatuses, one or more coil joints, a coil body, and one or more coil spines; wherein any combination of the above parts can result in a variety of distinct structures; wherein the coil joint has 360 degree rotation; wherein the rotation can be limited to simulate other types of joints; wherein this coil joint can be combined with other joint styles to create hybrid styles; wherein there are 2 bias actions, one is an extending action and the other is a contracting action; wherein the action of the coil results in a more life-like motion than not using the coil; wherein the coil body has a flexible shape that can be locked into place; wherein the coil body has a high strength to weight ratio, which leads to high dimensional stability; wherein there is also hollow space for storage and transport of a package inside of the coil body; wherein the coil spine simulates the spines of living beings; wherein the coil spine is a flexible yet robust structure.

A system and method of construction based on rods and coils that can create a mechanical hand; wherein the coil joints function as the equivalent to human joints; wherein there are rods that function as the equivalent to human bones; wherein the coil joints create a dampening effect that simulates the dampening effect in human hands; wherein there are coil bodies of the hand, that are used for transport and storage; wherein the fingers of the artificial hand can be replaced with tools that are of a similar size and not excessive weight; wherein the coil joints can be modified to simulate various human joints; where there is a bias in all coils and coil joints; wherein the bias of the coil joints increases the ability of the artificial hand to grasp; wherein the bias of the coil joint functions as tendon tension; wherein the bias of all the coils results in more life-like motion; wherein movement of the finger can be performed with a single wire opposing the bias of the coil; wherein the artificial hand can have autonomous motion by utilizing an actuator system.

A handheld work apparatus includes a first assembly, a second assembly and an anti-vibration unit which includes a coil spring. A first end of the coil spring forms a fastening eyelet fixed to the first assembly by an attachment screw which extends through the fastening eyelet and the head thereof projects into the coil spring. A second end of the coil spring is screwed onto a connecting piece of the second assembly which has an opening extending through the connecting piece and through which an engagement contour in the head of the attachment screw is accessible for a tool. When the work apparatus is in a non-loaded state, the distance (f) between the fastening eyelet and a front end of the connecting piece is the length (g) of the attachment screw. The distance (p) of the above support surface from the front end of the connecting piece is the length (g).

A shock absorber wheel system for absorbing vibrations and impacts on precision transport and the translocation vehicles like patient stretchers, new born baby units, portable medical devices in the health sector has a track wheel, a compressive spiral spring absorbing the vibrations and the impacts, an upper spring holder which is connected to the spiral spring and has a spindle at one end and a centering housing at the other end, a lower spring holder which is connected to the spiral spring and has a housing providing connection to the track wheel at one end and has a centering spindle connected to said centering housing.

A valve for a heat-transfer fluid circuit having a valve body defining a passage and having a proximal end and a distal end. The valve includes a valve mechanism positioned in the passage, the valve mechanism including a valve head and a seat arranged so as to engage sealingly with each other, the seat being arranged on the valve body in the passage.

A linear solenoid valve has a spring member and a spring load adjusting member, which is screwed into a sleeve member of the linear solenoid valve in order to adjust a spring load of the spring member. The sleeve member has a female screw portion and a swaged-claw forming portion is formed at an axial end surface of the female screw portion. Multiple swaging punches are prepared, each of which has a punching tooth portion of a punching portion. A punching area of the punching tooth portion differs from the swaging punch to the swaging punch. One of the multiple swaging punches is selected depending on a press-direction distance between the swaged-claw forming portion and an axial end surface of the adjust screw member. When the press-direction distance is smaller than a predetermined distance range, the swaging punch having a larger punching area for the punching tooth portion is selected, wherein the punching area is larger than a punching area of another swaging punch which is selected when the press-direction distance is larger than the predetermined distance range.

A damping device for a washing machine and a washing machine are provided. The damping device for a washing machine comprises a damping suspension rod, an upper bracket, a damping spring and a sliding damping support seat; an upper end of the damping suspension rod is installed on a cabinet of the washing machine, the upper bracket is installed on an outer tub of the washing machine, and the damping suspension rod passes through the upper bracket, the sliding damping support seat and the damping spring in sequence from top to bottom; and the sliding damping support seat is provided with a variable damping structure for transferring an eccentric force to generate a sliding damping acting on the damping suspension rod when the outer tub shakes or swings.