64results about How to "Simple and cost-effective construction" patented technology

A method for providing a digital signature, "chameleon signatures", which provide the signer of a digital signature exclusive control to disclose the contents of the signed information to third parties. The signatures are closely related to "undeniable signatures", but allow for simpler and more efficient realizations. The method is essentially non-interactive requiring no communication between sender and receiver and do not involve the design and complexity of zero knowledge proofs on which traditional undeniable signatures are based. The method employs a combination of standard digital signing methods with a unique hash functions. These hash functions are characterized by the non-standard property of being collision resistant for the signer but collision tractable for the recipient.

The invention relates to a release device for a rear seat backrest component part (1) of a vehicle seat, comprising

a housing (9) to attach to the foldable rear seat backrest component (1), a handle (16) connected to a transfer means (22) and designed to be actuated by the user, and

a warning indicator (20), including an indicator area (36) to indicate the unlocked state of a lock (5) in a pushed-forward position.

In order to ensure good manageability and clearly visible indication of the unlocked position, it is designed that housing (9) has a steering area (12) and warning indicator (20) has a guiding curve (44) for contact to steering area (12); that handle (16) is pivotably mounted in housing (9) and exhibits a guide (19), in which warning indicator (20) is movably guided and preloaded by a spring (38) in an upper position of its displacement path, which position is determined at least in one portion of the pivot area of handle (16) by the contact of guiding curve (44) to steering area (12).

The invention relates to a plug-in connector for connecting two flat strip conductors, including at least one spring element which provides the required normal contact power for the connection of the two flat strip conductors. The spring element contacts the two flat strip connectors and produces the electric contact between the two flat strip connectors.

The present invention relates to a device (01, 14) for fastening an auxiliary part (19), in particular a targeting unit or the like, to a weapon, which has at least one ferromagnetic part, the device comprising a base plate (02, 15), to which the auxiliary part (19) may be fastened, and the device (01, 14) being fixed on the weapon by at least one magnet (04).

A coil configuration having a tube-shaped coil brace of an electromagnetic drive is provided, particularly a two-stage starter solenoid switch, the coil configuration having a holding winding and a pull-in winding. The coil brace has at its one end a first delimitation and at its other end a second delimitation, between which the holding winding is situated. The first delimitation has on its side, facing away from its second delimitation, an axial recess for accommodating the pull-in winding.

A heating device for fuel comprising an electric heating element (5), which is mounted on a carrier body (4). The carrier body (4) surrounds the heating element (5), and an insulating protective layer coating (7) is applied to the carrier body.

An adjustable foot including a body integrally fastenable to a casing of the electric household appliance, a stem slidingly carried by the body, floor resting means, first screw means operatively associated with the stem and provided with anti-rotation means, a toothed wheel carried by the body so as to be coaxial to the stem and idle about a substantially vertical symmetry axis of the latter, second screw means operatively associated with the toothed wheel and cooperating with the first screw means for vertically translating the stem in response to a rotation of the toothed wheel, and control means for the toothed wheel; wherein the toothed wheel is axially mounted with clearance between opposite first and second abutting means of the body; the latter being provided with elastic axial biasing means cooperating with the toothed wheel and arranged on the side opposite to the end length of the first screw means, which has a thread height gradually decreasing towards the elastic means.

A filter suitable for use, for example, as an air filter for filtering the combustion air for internal combustion engines, having a substantially hollow cylindrical filter insert, preferably made of a pleated or fan folded filter medium, and end disks disposed at the axial end faces. A plurality of spacing contours distributed around the circumference and protruding radially beyond the projected end face are disposed in the region of one end disk in such a way that the spacing contours contact an inner housing wall of an associated filter housing when the filter insert is installed.

An electrical power tool includes a locking device (31) for securing the working tool (3) on a motor-driven shaft (2; 200), a device (10) for braking the shaft (2), a safety element (8) connected with the braking device (10) and an actuation switch (7) and having a safety position that corresponds to the braking position of the braking device (10) and a non-actuation position of the switch (7) in which the switch (7) cannot turn the shaft-driving motor (M) on, and a release position that corresponds to the release position of the braking device (10) and an actuation position of the switch (7), and a locking mechanism (21) operatively connected with the safety element (8) and the locking device (31) and displaceable between a locking position which corresponds to an unlocking position of locking device (31) and in which the safety element (8) is retained in its safety position, and a release position in which the locking device (31) is in its locking position, and the safety element (8) occupies its release position.

A joining unit contains a spindle drive in the form of a hollow shaft motor that encloses a spindle. The hollow shaft motor serves to achieve a linear movement of a joining tool for the execution of a joining process. The joining unit contains instruments for the presetting and/or determination of the forces exerted and/or the movement of the joining tool during the joining process.

The invention specifies an in particular horizontal tubular-bag machine (5) in which objects (2) which are provided for packaging are conveyed along a conveying direction (6) by means of a conveying apparatus (51). The tubular-bag machine (5) has an apparatus (50, 43) for producing from a packaging sheet material (12) a packaging tube (13) extending in the conveying direction (6), and also has a longitudinal-connection device (53, 54) and a transverse-connection device (44) for producing longitudinal and transverse connections in the packaging tube (13). Also provided is a gas-adjusting device (8) with an introduction head (80) for engaging in the packaging tube (13) in a direction transverse to the conveying direction, wherein the introduction head (80) has a first gas-passage opening (802, 804, 805, 807, 808) and at least one second gas-passage opening (802, 804, 805, 807, 808) by way of which a gas is fed into the packaging tube (13) or removed therefrom.

An electronic shield provides protection against rocket propelled grenades. The electronic shield has a mounting frame having opposite first and second mounting surfaces. Grids of electrodes are mounted in spaced-apart relation one behind the other on the first and second mounting surfaces of the mounting frame to form an impact surface configured to be impacted by a rocket propelled grenade. Each grid of electrodes has first connecting end portions connected directly to the first mounting surface of the mounting frame and second connecting end portions connected to the second mounting surface of the mounting frame via respective elastic members. During impact of a grenade on the impact surface, at least one electronic operation device instantaneously directs high power modulated electronic pulses to the impact surface to instantaneously deactivate the grenade.

Acoustic flow rate meter for the noninvasive determination of the flow or the flow rate in electrically conductive objects through which media flow, in particular pipes or pipelines, having an excitation transducer for generating at least one ultrasonic wave in the object, which is coupled into the medium as a longitudinal wave on an inner side of the object oriented toward the medium, and having a receiving transducer for the detection of an ultrasonic signal in the object, wherein the ultrasonic signal at least partially results due to the longitudinal wave, wherein the excitation transducer is implemented as a high-frequency induction coil, while omitting an acoustic coupling of the excitation transducer with the surface of the object, to generate a varying magnetic field in a surface-proximal region of the object, which is metallic in particular, and the ultrasonic wave is generated by interaction of the varying magnetic field with a static or quasi-static magnetic field in this region.

The invention relates to a method for detecting deviations of an object surface using a comparison between measured data of the surface and specified reference data. A surface description, at least portions of which are parametric, is generated as a target surface model using the specified reference data, and the comparison is carried out using the target surface model and the measured data. The invention likewise relates to a device for detecting deviations of an object surface using a comparison between measured data of the surface and specified reference data.

In a method for the measurement and analysis of tyre air pressure with an allocation of wheel positions (I, II, III, IV) of a vehicle (1) for analysis in a tyre air pressure measurement system each wheel (2) of the vehicle (1) is allocated an air pressure checking device (10), an LF receiver (11), in particular a magnetic field strength receiver, an analysis unit (13), an RF-transmission device (12) and an individual wheel code. The LF receiver (11) receives electrical LF signals from an LF transmission device (4) of a central unit (3) arranged in the vehicle (1), the analysis unit (13) analyses the received signal amplitudes and from these determines a wheel rotation rate and the RF transmission device (12) of the wheel (2) sends RF signals with information about the wheel rotation rate and the individual wheel code to the central unit (3) of the vehicle (1). The central unit (3) determines the wheel position (I, II, III oder IV) of the wheel (2) using another measurement system (7) and allocates the air pressure checking device (10) and its individual wheel code to the known wheel position (I, II, III or IV) on the vehicle (1). A tyre air pressure measurement system has a central unit (3) arranged in a vehicle (1) with an LF transmission device (4), an RF receiver device (5) and a central analysis device (6). An air pressure checking device (10) arranged on each wheel (2) of the vehicle (1), an LF receiver device (11), RF transmission device (12) and analysis unit (13) for determining a rotation rate using a periodically varying amplitude of the received LF signal, and a measurement system (7) for measuring the wheel rotation rate at each wheel (2) and/or for determining the type of bend are additionally provided.

An arrangement for safe transition of a trolley between a first and a second suspended rail when they are in an end-to-end position with each other, and for safe operation of the trolley when the rails are in un-aligned positions relative each other. The arrangement comprises a liftable first stop member, a liftable second stop member and two pairs of engaging members.

The liftable stop members are adapted to block the trolley from accidentally leaving the rails when the rails are in the un-aligned positions, and to unblock the rails when the rails are in the end-to-end position. The engaging members of the pairs of engaging members are arranged to engage with each other when the rails are in the end-to-end position to lift the stop members, thereby unblocking the rails in order to allow a transition between the rails.