The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 1980
Filed:
Sep. 12, 1974
Manfred Held, Kuhbach, DE;
Messerschmitt-Bolkow-Blohm GmbH, Munich, DE;
Abstract
The proximity fuse is incorporated in a warhead carried by a missile. This warhead comprises several active or passive bodies, which consist of preformed splinters or shaped charges. The proximity fuse comprises a circuit for producing an ignition signal to start the decomposition of the warhead when a distance is reached between the warhead and a target, for instance a missile. This distance is determined by using electromagnetic waves. The circuit comprises means for determining the time t.sub.A, which will elapse before the warhead encounters the target. Moreover, the circuit comprises means for storing a constant reference time t.sub.B, which is fixed in such a way that the active or passive bodies released within a certain space sector when the warhead decomposes, will be scattered in a certain space, i.e. they will cover this space in front of the target within this reference time. The circuit also comprises means for comparing the calculated time with the constant reference time being provided. The ignition signal for starting the decomposition of the warhead is released on the strength of this comparison as soon as the calculated time becomes shorter than the reference time. Reference time t.sub.B can be adjusted to different values. To determine distance A and the relative speed v.sub.B between warhead and target at the moment of encounter either the travel time of a pulse which is reflected by the target or the Doppler frequency shift between transmitted and reflected signal is used. A computer can also be provided for determining the dimensions of the attacking target.