公开(公告)号：US3585328A

公开(公告)日：1971-06-15

申请号：US3585328D

申请日：1970-02-11

Applicant: TEXAS INSTRUMENTS INC

Inventor： FIORE PETER O ,  BABOIAN ROBERT

IPC: H01H35/34

CPC classification number: H01H35/343

Abstract: Plural snap-acting, pressure-responsive, metal diaphragms having dished portions which permit the diaphragms to move from one dished configuration to an inverted dished configuration with snap action are disposed in nested relation to each other in a pressure switch. When fluid pressures are applied to the nested diaphragms from one side thereof, the diaphragms retain their original dished configuration during variation of said fluid pressures over a selected pressure range. However, the diaphragms move together with snap action to their inverted dished configuration when said fluid pressures reach predetermined levels. The diaphragms have protective oxide surface coatings which prevent galling of one diaphragm by another during said snap-acting movement of the nested diaphragms whereby the diaphragms retain their pressure response characteristics over a long service life.

公开(公告)号：US3900375A

公开(公告)日：1975-08-19

申请号：US42452673

申请日：1973-12-13

Applicant: TEXAS INSTRUMENTS INC

Inventor： BABOIAN ROBERT

IPC: C25F5/00 ,  C25F1/00

CPC classification number: C25F5/00

Abstract: A process for separating a first metal from a composite metal body in which said first metal is adhered as an external layer over a substrate constituted by a second metal. The body is immersed in an electrolytic solution in which the two metals are subject to differential anodic dissolution at a predetermined anode voltage measured by reference to a standard electrode, with the degree of dissolution of the second metal in the half-cell comprising the second metal and the solution being substantially less than the degree of dissolution of the first metal in the half-cell comprising the first metal and the solution at that voltage. Direct current is supplied to the body from the positive terminal of a direct current power source whose negative terminal is connected to a cathode also immersed in the solution. The voltage of the anode is controlled relative to the standard electrode at a level which maintains the aforesaid differential dissolution and thereby causes selective removal of the first metal from the body.

公开(公告)号：US3893205A

公开(公告)日：1975-07-08

申请号：US7538870

申请日：1970-09-25

Applicant: TEXAS INSTRUMENTS INC

Inventor： ANDERSON RAY B ,  BABOIAN ROBERT

IPC: B23K20/227 ,  B32B15/18 ,  E05B1/06 ,  H01K1/20

CPC classification number: E05B1/0007 ,  B23K20/227 ,  E05B15/16 ,  Y10S428/925 ,  Y10S428/933 ,  Y10T16/46 ,  Y10T428/12757 ,  Y10T428/12924 ,  Y10T428/12986

Abstract: A composite metal material displaying lower cost and improved strength and corrosion resistance is shown to comprise a layer of copper or brass material and a layer of aluminum material solidphase metallurgically bonded to respective opposite sides of a layer of low carbon steel. The composite material is formed into an article such as a lamp bulb base or a door knob with the brass or copper layer of the composite material facing exteriorly of the article, the aluminum layer of the composite material then serving as a preferentially corrosive material which protects the low carbon steel layer of the composite material from corrosion.

Abstract translation: 显示出较低成本和改进的强度和耐腐蚀性的复合金属材料显示为包括一层铜或黄铜材料和一层铝材料固相冶金结合到一层低碳钢的相应两侧。 复合材料形成为诸如灯泡基座或门把手的物品，复合材料的黄铜或铜层面向制品的外部，复合材料的铝层然后用作优先腐蚀性材料，其保护 复合材料的低碳钢层腐蚀。

公开(公告)号：US3886055A

公开(公告)日：1975-05-27

申请号：US42394873

申请日：1973-12-12

Applicant: TEXAS INSTRUMENTS INC

Inventor： BABOIAN ROBERT ,  HAYNES GARDNER S

IPC: C25F5/00 ,  C23B1/00 ,  B01K3/00

CPC classification number: C25F5/00

Abstract: A process for separating silver, gold or a silver/gold alloy from a composite metal body in which the silver, gold or alloy is adhered as an external layer over a ferritic or austenitic stainless steel substrate. Separation is effected by controlled potential electrolysis in which the metal composite serves as the anode and in which the electrolytic solution used contains between about 1% and about 10% by weight of an alkali metal cyanide and up to about 10% by weight of an alkali metal hydroxide. During electrolysis the anode voltage is controlled by reference to a standard electrode at a voltage at which the degree of dissolution of the stainless steel in the half cell comprising stainless steel and the solution is substantially less than the degree of dissolution of the silver, gold or silver/gold alloy in the half cell comprising silver, gold or silver/gold alloy and the solution thereby causing selective removal from the substrate of the silver, gold, or alloy thereof.

Abstract translation: 从银，金或合金的复合金属体中分离出银，金或银/金合金作为外层的铁素体或奥氏体不锈钢基体的方法。 通过控制电位电解进行分离，其中金属复合物用作阳极，并且其中使用的电解液含有约1重量％至约10重量％的碱金属氰化物和至多约10重量％的碱 金属氢氧化物。 在电解期间，通过参照标准电极以不锈钢在不锈钢和溶液的半电池中的溶解程度显着小于银，金等的溶解度的电压来控制阳极电压 银/金合金在半电池中包含银，金或银/金合金，并且该溶液从而导致银，金或其合金的基板的选择性去除。