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公开(公告)号：US3611345A
公开(公告)日：1971-10-05
申请号：US3611345D
申请日：1969-04-16
Applicant: INTRON INT INC
Inventor： PINTELL ROBERT H
CPC classification number: G01V1/16 , G08B13/1436 , G08B13/24
Abstract: A mobile body is confined within a spherical or spheroidal chamber which forms part of an electric monitoring circuit, displacement of the body from an initial position resulting in changes of circuit impedance (through variations in conductance, capacitance or inductance) which are registered on an indicator.
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2.发明授权
公开(公告)号：US3229211A
公开(公告)日：1966-01-11
申请号：US83478259
申请日：1959-08-19
Applicant: INTRON INT INC
Inventor： PINTELL ROBERT H
CPC classification number: H03K17/08144 , H02H7/1227 , H02H7/127 , H02H9/005 , H02M7/445 , H02M7/519 , H02M7/5233
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公开(公告)号：US3209231A
公开(公告)日：1965-09-28
申请号：US11716861
申请日：1961-06-14
Applicant: INTRON INT INC
Inventor： PINTELL ROBERT H
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公开(公告)号：US3594791A
公开(公告)日：1971-07-20
申请号：US3594791D
申请日：1968-04-26
Applicant: INTRON INT INC
Inventor： PINTELL ROBERT H
CPC classification number: G01S13/343 , G01S13/32
Abstract: A vehicle carrying a transmitter of high frequency waves is equipped with means for measuring the current flow in its transmit-receive antenna; in the vicinity of a reflecting object, at distances from the transmitter related in a predetermined manner to the operating wavelength, the antenna current or its derivative reaches a series of peaks whose amplitude increases with diminishing distance. If the operating frequency is varied, distance (e.g. from ground) may be determined as a function of the wavelength at the tallest peak observed with decreasing frequency; a constant operating frequency may be used for actuating a load (e.g. a detonator) upon the vehicle approaching within a predetermined distance of an object as determined by current or voltage measurements.
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5.发明授权Transducer diaphragm imbedded with conductively-coated ferromagnetic particles 失效透明导电膜与导电涂层的氟化物颗粒混合
公开(公告)号：US3497642A
公开(公告)日：1970-02-24
申请号：US3497642D
申请日：1966-02-28
Applicant: INTRON INT INC
Inventor： PINTELL ROBERT H
CPC classification number: H01F27/2847 , H01F27/2804 , H01F30/02 , H01F30/10 , H01F2017/006 , H01F2027/2857 , H04R7/14 , H04R9/047 , H04R13/00
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Patent Agency Ranking
公开(公告)号：US3207931A
公开(公告)日：1965-09-21
申请号：US12058361
申请日：1961-06-29
Applicant: INTRON INT INC
Inventor： PINTELL ROBERT H
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公开(公告)号：US3247476A
公开(公告)日：1966-04-19
申请号：US11716961
申请日：1961-06-14
Applicant: INTRON INT INC
Inventor： PINTELL ROBERT H
CPC classification number: H04R7/14 , H01F27/2804 , H01F27/2847 , H01F30/02 , H01F30/10 , H01F2027/2857 , H04R9/047 , H04R13/00 , Y10T29/4902 , Y10T29/49162
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公开(公告)号：US3217266A
公开(公告)日：1965-11-09
申请号：US17986562
申请日：1962-03-15
Applicant: INTRON INT INC
Inventor： PINTELL ROBERT H
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公开(公告)号：US3151287A
公开(公告)日：1964-09-29
申请号：US2859260
申请日：1960-05-12
Applicant: INTRON INT INC
Inventor： PINTELL ROBERT H
CPC classification number: H02M3/28 , H02M3/3387
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公开(公告)号：US3026486A
公开(公告)日：1962-03-20
申请号：US73858558
申请日：1958-05-28
Applicant: INTRON INT INC
Inventor： PINTELL ROBERT H
IPC: H02M1/20 , H02M5/293 , H02M7/44 , H02M7/5383 , H02M7/62 , H03B5/00 , H03B5/08 , H03B11/00 , H03B11/06
CPC classification number: H03B11/00 , H02M1/20 , H02M5/293 , H02M7/445 , H02M7/5383 , H02M7/53835 , H02M7/62 , H03B5/00 , H03B5/08 , H03B5/1225 , H03B5/1231 , H03B5/1296 , H03B11/06
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