296results about How to "Improved force transmission" patented technology

An adaptive optic for refractive lens exchange or cataract patients. The intracapsular implant comprises an elastomeric monolith with an equilibrium memory shape that imparts to the capsular sac's periphery the natural shape of the capsule in an accommodated state. In one embodiment, the monolith carries a recessed deformable central lens portion having an ultralow modulus that allows for high accommodative amplitude in response to equatorial tensioning. In a preferred embodiment, the adaptive optic defines an anisotropic modulus with a plurality of on-axis, rotationally symmetric elastomer block portions each having a different Young's modulus. The invention further provides composite materials for enhancing deformation of lens curvature, including the use of auxetic polymeric materials and negative stiffness materials. In preferred embodiments, at least a portion of the lens is fabricated of a shape memory polymer that provides a memory shape and a temporary shape with a reduced cross-sectional shape for introduction into the patient's eye.

A planetary roll system, in particular for a device for extending bones. The system comprises two elements that can be displaced in opposition to one another and that are interconnected by at least one drive element. A hosing is designed to receive at least one planetary roll which comprises at least one radial cavity.

A panel has a core of wood material or a wood material / plastic mixture, a top and an underside, and two opposite side edges, which have profiles that correspond to each other such that two identically configured panels can be connected and locked to one another in the horizontal (H) and vertical (V) directions by an essentially vertical joining movement. The locking in the horizontal direction (H) can be brought about by a hook connection with an upper locking section having a hook element and a lower locking section having a hook element. The locking in the vertical direction (V) can be brought about by at least one tongue element that is formed from the core in one piece and can be moved in the horizontal direction (H). The at least one tongue element provided on the lower locking section is free with respect to the core in the direction of the opposite side edge by means of an essentially vertical slot and during the joining movement snaps in behind a locking edge extending essentially in the horizontal direction (H), which locking edge is embodied on a locking projection. The tongue element is connected to the core on at least one of its two ends in the direction of its side edge (II), and the width (B1, B2) of the locking edge is different in size over the length (L) of the opposite side edge (I).

A hand-held power tool includes a spring-mounted decoupling device (16) for supporting a tool handle (14) on a tool housing (4) and having a first support arrangement (18) including a connecting device (22) pivotally supported relative to the housing by a housing-side pivotal support (28) and relative to the handle (14) by a handle-side pivotal support (32), and a second support arrangement (20) that is spaced from the operational axis (A) in a second direction (y) perpendicular to the first direction (z) further away than the first support arrangement (18).

A system and method for repositioning teeth in a patient jaw includes an attachment bonded to a tooth. The attachment has at least one force receiving component for receiving a force. A polymeric shell repositioning appliance is positioned over at least some of the teeth in the patient jaw. The polymeric shell has at least one force transmitting component for engaging the force receiving component to form a locus of engagement. The locus of engagement transmits the force and moves but is maintained as the tooth is repositioned. In specific embodiments the locus of engagement is maintained over a substantial range of motion. The force transmitted at the locus of engagement increases in response to the tooth lagging an intended position. A space between the positioned appliance and the tooth permits the tooth to move into an intended position.

A three-component standard vibration table based on a lock type decoupling device is disclosed. The vibration table comprises: a pedestal, an X-direction electromagnetic vibration table, a Y-direction electromagnetic vibration table, a Z-direction electromagnetic vibration table and a three-dimensional vibration platform. The each electromagnetic vibration table is connected with the three-dimensional vibration platform through a motion decoupling apparatus. The motion decoupling apparatus comprises: a first frame and a second frame. The first frame and the second frame are formed by outer sides, inner sides, first connection sides and second connection sides, wherein the first connection sides and the second connection sides are located between the outer sides and inner sides. The outer sides are opposite to the inner sides. The inner side of the frame is inserted into the other frame. Minimal gaps exist between the inner side of the first frame and the inner side and the outer side of the second frame. An interval is arranged between the inner side of the second frame and the outer side of the first frame. An airflow channel is communicated with an external compressed air source. The outer side of the first frame is connected with the electromagnetic vibration tables and the outer side of the second frame is connected with the three-dimensional vibration platform. A structure is simple. Installation is convenient. A decoupling effect is good. The vibration table is suitable for a vibration calibration system.

A system and method for repositioning teeth in a patient jaw includes an attachment bonded to a tooth. The attachment has at least one force receiving component for receiving a force. A polymeric shell repositioning appliance is positioned over at least some of the teeth in the patient jaw. The polymeric shell has at least one force transmitting component for engaging the force receiving component to form a locus of engagement. The locus of engagement transmits the force and moves but is maintained as the tooth is repositioned. In specific embodiments the locus of engagement is maintained over a substantial range of motion. The force transmitted at the locus of engagement increases in response to the tooth lagging an intended position. A space between the positioned appliance and the tooth permits the tooth to move into an intended position.

The present invention relates to a drive system comprising at least one motor with at least one vibration generator each as well as at least one resonator each and a device driven by said motor, wherein the resonator comprises a contact area that cooperates with the surface of the device in order to drive said device.

A sandwich structure is provided that includes a corrugated layer with at least one core layer (structure) made of a periodic array of adjacent truncated upward facing peaks and truncated downward facing valleys. Each truncated peak has a bonding land of an area A1. Each truncated valley has a bonding land of an area A2. A ratio of A1 / A2 is less than 2. A distance D is between neighboring peaks, and a distance D is also between neighboring valleys. The corrugated layer is made from an initially flat sheet thickness of t. A first sheet layer is physically coupled to bonding lands of the truncated peaks. A second sheet layer is physically coupled to bonding lands of the truncated valleys.

The invention relates to a support element (105) for a wiper drive (100), comprising a receiving portion (130) for attaching the wiper drive (100), a bearing point (135) for fixing the support element (105) to a surrounding structure (110), and a predetermined breaking point (140). A specified gap (150) lies between the support element (105) and the surrounding structure (110) at a contact portion (142) of the support element (105), the width of said gap being dependent on a force that acts on the support element (105) such that the contact portion (142) comes into contact with the surrounding structure (110) only when a specified force acting on the support element (105) is exceeded.

A pole, for use in skiing or other sport, of the type that includes a grip handle at its upper end, wherein the handle includes a support extending from its side wall and adapted to cooperate with the thumb of a user, so as to constitute an additional mechanism for the axial transmission of forces, by the thumb, when the hand is closed on the handle of the pole.

A hand-held power tool includes a spring-mounted decoupling device (16) for supporting a tool handle (14) on a tool housing (4) and having a first support arrangement (18) including a connecting device (22) pivotally supported relative to the housing by a housing-side pivotal support (28) and relative to the handle (14) by a handle-side pivotal support (32), and a second support arrangement (20) that is spaced from the operational axis (A) in a second direction (y) perpendicular to the first direction (z) further away than the first support arrangement (18).

A process for producing semiconductor wafers by double-sided polishing between two rotating, upper and lower polishing plates, which are covered with polishing cloth, while an alkaline polishing abrasive with colloidal solid fractions is being supplied, the semiconductor wafers being guided by carriers which have circumferential gear teeth and are set in rotation by complementary outer gear teeth and inner gear teeth of the polishing machine, which is distinguished by the following process steps:(a) at least one of the two sets of gear teeth of the polishing machine is at least from time to time sprayed with a liquid which substantially comprises water,(b) the alkaline polishing abrasive is fed continuously to the semiconductor wafers in a closed supply device. There is also a device which is suitable for carrying out the process.

The invention provides a novel structural redundancy parallel robot mechanism. By adoption of the novel structural redundancy parallel robot mechanism, the defects of the prior art can be overcome, and two-rotation and two-horizontal-movement posture transformation of a working platform in the space is achieved, and the parallel mechanism has the advantage that singular postures of the mechanism are avoided, and the force transmission performance of the mechanism is improved. The overall structure of the mechanism is shown in the drawing of the abstract, and the mechanism is formed by sequentially arranging four branch chains in a 90-degree mode. The four branch chains are of two types substantially, the two branch chains of each type are distributed symmetrically, and every two branch chains located in opposite positions of a kinematic pair are of completely identical structures. The two-rotation and two-horizontal-movement structural redundancy parallel mechanism is simple in structure and easy to product and machine and can be applied to the fields of machining of complex curved surfaces of machine tools, material transferring, simulation platforms and the like.

To be able to transmit higher forces when retaining movable components on board an aircraft, a retaining system includes a support structure with a first retaining area and a second retaining area having a movable locking element, and a movable component with a locking receptacle forming a locking device with the locking element, and a retaining device. The movable component is movably attached to the first retaining area with the retaining device, and the movable component can be locked on the second retaining area with the locking device. The at least one movable locking element can be moved between an open setting (SOFF) and a locked setting (SVER), wherein the at least one movable locking element engages with the locking receptacle in the locked setting, so that the movable component is temporarily immovably retained, and allows the movable component to move in the open setting.

A rotor-hub for a rotary-wing aircraft is disclosed. The rotor-hub comprises a yoke comprising a plurality of yoke arms and a plurality of yoke straps, wherein the yoke arms are joined together by the yoke straps, and wherein a plurality of inner walls of the yoke define a central void space. A pitch horn is movably connected to the yoke and a portion of the pitch horn is located within the central void space. A connecting shell is fixedly attached to the yoke.

A mowing blade that performs an oscillating linear motion, has a blade bar, with at least two bar sections that are located one behind the other along a longitudinal axis. The front faces of the sections abut one another and have respective recesses. The thickness of the bar sections is reduced in recessed areas. A connecting fish plate, which can for example be constructed from a high strength material, is placed in the recesses. The blade sections, bar sections and fish plate are connected by cap screws and securing nuts. A blade section covers the butt joint between the two bar sections. The configuration enables absorption of inertial forces caused by the backwards and forwards reciprocating motion and compressive forces that result from the motion in the connection region.