49results about How to "Simple and cheap structure" patented technology

The present patent application is directed to a communication system 0 comprising a first station 1 with a first narrow beam antenna 31 and a second station 2 comprising a second narrow beam antenna 41, wherein the first and second stations 1, 2 are adapted to establish a first communication path 7a for wireless communication via said first and second narrow beam antennas 31, 41, respectively. It is a disadvantage with such a communication system that communication via said first communication path might be disturbed by randomly appearing obstacles. In consequence, the data transmission rate is reduced. According to the present invention said first and second stations 1, 2 are adapted to automatically establish at least one alternative communication path 7b, 7c for wireless communication via said first and second narrow beam antennas 31, 41, said alternative communication path 7b, 7c being spatially different from said first communication path 7a.

This invention relates to intraocular lenses. More particularly, this invention relates to intraocular lenses that have the ability to alter the light refractive power in response to changes in the tension of the ciliary muscle or ciliary body of the eye or any other accommodative forces. Lenses of this invention are generally referred to as interfacial, i.e., lens properties being defined as theinterface of two liquids having different refractive indices, refractive accommodating lenses (IRAL).

A communication system including a first station having at least two first narrow beam antennas and a second station having at least two second narrow beam antennas. The first and second stations establish a first communication path for wireless communication via a pair of first and second narrow beam antennas. When communication via the first communication path is disturbed by obstacles, the first and second stations automatically establish at least one alternative communication path, which is spatially different from the first communication path, for wireless communication using the at least two first narrow beam antennas and the at least two second narrow beam antennas.

The invention relates to a method for increasing rocket impellent which provides module combined multi-section ''high explosive cartridge'' to launch the rocket for increasing rocket launch speed and shot. The invention first uses ''conventional impellent gunpowder initial propelling booster'' to send bullet and the cartridge to high altitude more than 300 m, time difference percussion mechanism at bullet bottom detonates the high explosive in cartridge one by one in predetermined time difference, and then the high explosive detonates in high altitude, so that it can safely provides impellent greatly large than any solid or liquid propellant, therefore the rocket can fly very far distance, coupling with guide apparatus, to correctly get to object. The invention can be used for rigid body launch in military and space navigation.

In a two-stroke reciprocating piston engine having at least one cylinder (1) whose combustion chamber (3) has an outlet opening (4), which can be controlled by an outlet valve (5) which can be actuated by means of an actuating device which comprises a feed device and a return device, and on whose cylinder head (2) is placed a valve housing (9) which comprises an outlet duct (8), which adjoins the outlet opening (4) of the combustion chamber (3), and a guide sleeve (10), which engages through the upper wall of said valve housing (9), for a shank (7), which extends through the outlet duct (8), of the outlet valve (5), wherein the return device has a piston (15), which is attached to the valve shank (7), and a working space (17) which is delimited by said piston (15), is acted on with compressed air and is sealed off from an annular gap (11),; which is present between the mutually facing guide faces of the guide sleeve (10) and valve shank (7), communicates with the outlet duct (8) and can be supplied with oil, by a sealing device which is arranged in the region of the upper, outlet-duct-remote end of the annular gap (11) and has at least one sealing ring (22), according to the invention, it is possible to provide a simple design and a service-free mode of operation in that, above the sealing ring (22), which faces towards the outlet duct (8), of the sealing device, an oil reservoir (24 and 31 and 36) is provided which can be filled with oil and is filled with oil at the upper side, which faces away from the outlet duct (8), of said sealing ring (22).

The invention relates to a front window shield for vehicle, and a vehicle having a simple and inexpensive structure that assists the driving sense is also provided. A front windscreen (1) of a vehicle (100) is provided with a pair of marks (2 and 3) substantially horizontally aligned. The marks (2 and 3) are formed at the same height at the left and right sides of the front windscreen (1). A driver perceives a virtual line (L) by the marks (2 and 3) on the front windscreen (1), and trackings of the line of sight (W1) are induced to move such as to gather between the bottom end line, for example a line of an instrument panel (6) and a virtual line (L).