32results about How to "Sufficient freedom of movement" patented technology

A device for elastically stabilizing vertebral bodies includes at least two bone anchoring means, each having a central axis and a head segment. The device also includes elastic means that can be joined to the head segments of two adjacent bone anchoring means in such a manner that the longitudinal axis of the elastic means extends transversely to the central axes of the bone anchoring means. Under compressive loads, the elastic means has a progressive spring characteristic. The elastic means is manufactured from a metallic material and has a plurality of spring coils, of which at least two spring coils have a geometric dimension which is different from the other spring coils.

The invention relates to an x-ray device with an x-ray source fixed to a ceiling stand and a generator connected therewith in order to supply voltage. In order to achieve as compact an arrangement as possible, it is proposed in accordance with the invention to provide the generator with means of suspended fixing on a ceiling.

A solar collector (1) is provided having a cover (200), a back wall (300), and an absorber (100), the absorber being arranged between the cover (200) and the back wall (300) and defining, with the cover (200) and / or the back wall (300), a front and / or back cavity (14, 15), respectively. At least one spacer element (400) is provided, which extends from a front surface (102) of the absorber (100) to the cover (200) and / or from a back surface (103) of the absorber (100) to the back wall (300) and is connected or connectable directly to the absorber (100) and / or the cover (200). A method for manufacturing such a solar collector (1) is also provided.

A bone rongeur for an operation comprises a clamping rongeur head formed by hinging an upper rongeur head body and a lower rongeur head body and a holding handle formed by hinging an upper rongeur handle and a lower rongeur handle. The tail end of a force arm section on the tail portion of the upper rongeur head body is hinged to the front end of the upper rongeur handle through a rotary shaft, a force arm section on the tail portion of the lower rongeur head body is longer than the force arm section on the tail portion of the upper rongeur head body and extends freely to the tail end, the force arm section on the tail portion of the lower rongeur head body is provided with a rack formed through a plurality of teeth in the extending direction, the front end of the lower rongeur handle is provided with a transmission gear, and the transmission gear is in meshed contact with the rack on the force arm section of the lower rongeur head body. Due to the fact that the transmission gear moves along the rack to the extending end of the force arm section of the lower rongeur head body, so that torque of the force arm section of the lower rongeur head body is increased, and the clamping force between the clamping face of the mouth portion of the lower rongeur head body and the clamping face of the mouth portion of the upper rongeur head body is increased. According to the bone rongeur, an operator can save labor when holding the bone rongeur, the situations that hands and upper limbs of the operator are fatigued and the hands tremble due to overexertion are effectively prevented, accidental injury accidents are prevented, and safety of the fine operation is guaranteed.

An energy store is provided, having at least one stack, each stack having at least one storage cell, which in turn has an air electrode and a storage electrode. The storage electrode is adjacent to channels, which contain a storage medium and water vapor. The channels have a larger cross-sectional area than the cross-section of the storage medium, which condition causes unhindered spreading of a reaction gas in the area between the storage electrode and the storage medium.

A solar collector (1) is provided having a cover (200), a back wall (300), and an absorber (100), the absorber being arranged between the cover (200) and the back wall (300) and defining, with the cover (200) and / or the back wall (300), a front and / or back cavity (14, 15), respectively. At least one spacer element (400) is provided, which extends from a front surface (102) of the absorber (100) to the cover (200) and / or from a back surface (103) of the absorber (100) to the back wall (300) and is connected or connectable directly to the absorber (100) and / or the cover (200). A method for manufacturing such a solar collector (1) is also provided.

The invention relates to a sealing device for a large rolling bearing and a wind-driven generation device. A rotation support mechanism for the large rolling bearing has annular connection members; the annular connection members can rotate relative to each other; the rotation support mechanism has a bearing gap which is sealed by a sealing device on an annular opening; the sealing device has a moulding part; the moulding part has a groove side wing and a groove-shaped recess, the boundary of which is defined by the groove bottom; the depth of the recess is extended and is in parallel with a bearing rotation axis; the groove side wing forms inner sides of two arms of a cross section of the sealing device; one arm is used for archoring the sealing device on the annular connection member; a sealing lip is arranged on the outer side of the other arm; a spring member is inserted into the groove-shaped recess; the spring member is attached against the groove side wing to push away the groove side wing, so that the two arms of the sealing device are spreaded open in the bearing gap between the two conenction members; and thus the sealing lip receives bigger pressure from the outer side of one arm.