序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
101 Magnetic control systems US62533456 1956-11-30 US2994069A 1961-07-25 RAJCHMAN JAN A; LO ARTHUR W
102 Magnetic system using transfluxors US60778056 1956-09-04 US2962719A 1960-11-29 RAJCHMAN JAN A
103 Electrostatic magnetic amplifier for combustion control and other purposes US33319453 1953-01-26 US2884588A 1959-04-28 LEROY PETERSON ROBERT
104 Magnetic amplifier regulating system US55614055 1955-12-29 US2840724A 1958-06-24 KENYON ALONZO F; ABELL DONALD E; HULL ROBERT E
105 Magnetic or dielectric amplifier US41593954 1954-03-12 US2835747A 1958-05-20 MEIJER CLUWEN JOHANNES
106 Transducer US51509155 1955-06-13 US2785356A 1957-03-12 NISLE ROBERT G
107 Hall effect apparatus US28707652 1952-05-09 US2736822A 1956-02-28 DUNLAP JR WILLIAM C
108 A geyser US24068D USRE24068E 1955-10-04
109 Isocyanate modified polymers US18769550 1950-09-29 US2625531A 1953-01-13 SEEGER NELSON V
Curable elastomers are prepared by reacting a linear polyester having an hydroxyl number from 30-140 and an acid number from 0 to 12, a bifunctional additive, containing at least one primary amino and/or carboxyl group, in an amount such that the total number of primary amino and carboxyl equivalents in the additive is from 0.06 to 0.24 per mol. of polyester, and 2.4 tolylene diisocyanate, hexamethylene diisocyanate or tetramethylene diisocyanate, in an amount equal to the sum of from 1.00 to 1.20 mols. of diisocyanate per mol. of polyester plus a molar amount of diisocyanate equivalent to the molar quantity of bifunctional additive used. The additive may be a diamine, amino-alcohol, amino-acid, dicarboxylic acid, hydroxy acid, a urea, guanidine or thiourea containing a primary amino group, and may be added when the polyester and diisocyanate have been partially reacted. The products cure in a shorter time than if the additive were not included and the cured products are free from blisters. The polyester may be in part derived from unsaturated components such as maleic, fumaric dihydromuconic, and dilinoleic acids in which case sulphur, benzoyl peroxide or t-butyl hydroperoxide may be used as curing agents. Other curing agents specified are di- and other polyisocyanates and alkyl ethers of hexamethylol melamine with a 2-, 4-dihalo naphthol as accelerator. The quantity of polyisocyanate used for curing should be such that the total number of isocyanate equivalents present in the cured product is equal to the sum of from 2.80 to 3.20 per mol. of polyester plus twice the molar amount of additive used. The curing is preferably effected by dry heat, hot water and steam resulting in partial degradation. The Specification lists many compounds suitable as the bifunctional additive and for making the polyester and also gives many examples of starting mixes for the polyester. In an example a polyester having an acid number 3.5 and hydroxyl number 58.6 and derived from adipic acid, ethylene glycol and propylene glycol was reacted with 1.11 mols. of 2.4 tolylene diisocyanate and 0.06 mols. of hexamethylene diamine per mol. of polyester at 120 DEG C. for 8 1/4 hours. In similar examples adipic acid and ethanolamine were used instead of hexamethylene diamine. All three modified polyesters were cured by reaction with 0.45 mols. of additional tolylene diisocyanate per mol. of polyester at 300 DEG F. for 30 minutes. Polymers prepared without the additive p blistered on curing unless they were partially cured, remilled and then finally cured. Specifications 553,733 and 694,978 are referred to.
110 Magnetic amplifier US68185646 1946-07-08 US2556083A 1951-06-05 GERARD HEPP
111 Hall effect telemetering transmitter US76898347 1947-08-16 US2536805A 1951-01-02 HANSEN JR ALBERT
112 Magnetic amplifier for reversible currents US76997747 1947-08-21 US2504675A 1950-04-18 HARRY FORSSELL
113 Magnetic field responsive device US40516241 1941-08-02 US2374166A 1945-04-24 BEACH LENNOX F; PURVES JOHN C
114 Electrical measuring apparatus US33875740 1940-06-04 US2272772A 1942-02-10 HATHAWAY CLAUDE M
115 Electric controlling apparatus US75841434 1934-12-20 US2092319A 1937-09-07 LOGAN FRANK G
116 WIRELESS TRANSMITTER PCT/US2006013927 2006-04-12 WO2007024281A9 2007-04-12 TUCCILLO MARK JOSEPH
A magnetic field tolerant amplifier having an amplifier stage, a differential to single-ended output amplifier stage and a first and second delay line. In another embodiment the invention relates to a magnetic gradient cancellation delay line including two coils connected in series at a junction and non-inductively wound to cancel induced currents from magnetic gradient. In another embodiment the invention relates to a patient lead including a flexible circuit substrate having a flexible conductor having distributed impedance. In still yet another embodiment the invention relates to a wireless transceiver system including an RF cancellation delay line; a differential amplifier stage; a differential to single ended output amplifier stage; an A/D converter; an RF transceiver and an antenna.
117 MAGNETIC FIELD TOLERANT AMPLIFIER AND WIRELESS TRANSCEIVER USING THE SAME PCT/US2006013927 2006-04-12 WO2007024281A3 2007-07-19 TUCCILLO MARK JOSEPH
A magnetic field tolerant amplifier having an amplifier stage, a differential to single-ended output amplifier stage and a first and second delay line. In another embodiment the invention relates to a magnetic gradient cancellation delay line including two coils connected in series at a junction and non-inductively wound to cancel induced currents from magnetic gradient.
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