81 |
Process for making reed switches |
US729005 |
1976-10-04 |
US4055888A |
1977-11-01 |
Vaughan Morrill, Jr.; Stanley F. Jackes |
Reed switches, contact sections of the reed of which bear with a predetermined positive force against inside surfaces of an elongated envelope, are made by forming combs, each including a header web and, integral with the web and projecting therefrom, a plurality of reed elements. The reed elements are parallel with one another and spaced from one another along the web. A plurality of elongated glass envelopes are mounted in a fixture, parallel with one another and spaced the same centerline-to-centerline distance as the reed elements. The reed elements of a first comb are inserted into one end of the envelopes and the reed elements of a second comb into the other end of the envelopes until the inner ends of the opposite reeds are in the desired positions lengthwise with respect to one another. The free inner end of each of the reed elements of the first comb is then forced against the inner wall of an envelope in one direction with a predetermined positive pressure; the free inner end of each of the reed elements of the second comb is similarly forced against the inner wall of the envelope in the opposite direction, and while the pressures are maintained, the reed elements are fused into the envelopes. The envelopes are preferably so made that only a broad outer surface of reed elements of rectangular cross section bears against the envelope at the contact end. |
82 |
Apparatus for reed switch manufacture |
US572910 |
1975-04-29 |
US4004337A |
1977-01-25 |
John Hill; Henry Turczanki |
The invention relates to a method and apparatus for the encapsulation of a switch contact sub-assembly, in which sub-assembly at least two contacts are rigidly joined in a desired spatial relationship by a destructible bridging piece, wherein the sub-assembly is inserted into a glass tube continuously purged with inert gas and the tube sealed to the sub-assembly by heating two spaced apart regions thereof followed by removal of surplus tube and, in a further aspect of the invention, destruction of the bridging piece. |
83 |
Reed switches and process for making them |
US486452 |
1974-07-08 |
US3938066A |
1976-02-10 |
Vaughan Morrill, Jr. |
A reed switch is made by forming an envelope tube, non-circular in cross-section, with a known internal heightwise dimension, forming a reed element with two end-bearing portions at least one of which is part of a contact section of the reed element and an intermediate sealing-bearing section between and entirely out of a plane defined by the end-bearing portions of the reed, the distance between the plane and a bearing surface of the sealing-bearing section being greater than the internal heightwise dimension of the envelope tube; inserting the reed element into an open end of the envelope tube sufficiently far to cause both of the end-bearing portions and the bearing surface of the sealing-bearing section to bear against the inside wall of the envelope tube, the end-bearing portion of the contact section of the reed element bearing with a force greater than the force ultimately to be exerted by that portion in the finished switch; sealing at least a part of the sealing section in the envelope tube to seal said tube and form the reed switch envelope, and relieving at least a part of the pressure exerted upon the inside wall by the end-bearing portion of the contact section of the reed.The resulting reed switch has at least one reed element with two end-bearing portions bearing upon undistorted areas of the inside wall of the envelope and a sealing section sealed in the envelope, the force with which the end portion of the contact section or sections bears against the envelope wall being less than the force with which it bore during the reed switch forming process. |
84 |
Apparatus for producing a glass-encapsulated reed contact switch |
US46155774 |
1974-04-17 |
US3909210A |
1975-09-30 |
HUTTNER THEO |
Apparatus for producing reed switches, wherein means are provided for holding contacts in spaced relation within a glass tube, a coil adjacent the tube being capable of applying either a magnetizing or a demagnetizing field to the contacts. A heating device for melting one end of the glass tube to embed one of the contacts is controllable to permit the embedded contact to be moved while the glass is still viscous.
|
85 |
Reed switches and process for making them |
US40079673 |
1973-09-26 |
US3866317A |
1975-02-18 |
MORRILL JR VAUGHAN |
A reed switch is provided preferably with an envelope noncircular and in particular a flattened oval in cross section. Reed switch elements, each having a reed section, a sealing section and a lead section are sealed into the envelope along a part less than the total length of the sealing section, the unsealed part of the sealing section being in close engagement with the inner wall of the envelope. A method of making a reed switch is provided wherein reed switch elements each including a reed section, a sealing section and a lead section are inserted into a tube, preferably non-circular, the sealing section of the elements and the interior of the tube being so closely dimensioned as to permit them to locate the reed sections with respect to one another before and during a sealing process. In the preferred method, a multiplicity of pairs of switch elements are inserted in a glass tube of oval cross section, lengthwise of the tube, and sealed in place in a horizontal position, providing symmetrical sealed joints, and thereafter the tube offal between the switches is removed.
|
86 |
Method of manufacturing a sealed contact |
US41502973 |
1973-11-12 |
US3864826A |
1975-02-11 |
BUTTEL HELMUT |
A method for closely controlling the tolerances involved in the manufacture of a contact assembly is accomplished by a predeterminately positioned oblong hole in one corner of both the base plate and cover, and a predeterminately positioned circular hole in another corner of both the base plate and cover. Placement of the base plate and cover upon respectively positioned circular and oblong pegs allows the contact members of both the cover and base plate to exactly align. Welding of the base plate and cover is thereby accomplished within very close tolerances. The holes remaining in the finished contact are useful for aligning and mounting the contact during later operation.
|
87 |
Method for producing a glass-encapsulated reed-contact switch |
US38961573 |
1973-08-20 |
US3828427A |
1974-08-13 |
HUTTNER T |
This disclosure relates to a method for producing reed switches whereby a first contact is embedded in one end of a glass tube, a second contact is positioned through the other end of the glass tube, the temperature of the other end is controlled to embed a portion of the second contact in viscous glass, a magnetic field is applied to both contacts during which time the second contact is moved with respect to the first contact until the reed switch is actuated, and finally, the other end of the glass tube is cooled to harden the viscous glass and hold the second contact.
|
88 |
Magnetic reed contact unit producing apparatus |
US3750276D |
1971-04-05 |
US3750276A |
1973-08-07 |
BISHOP W |
Apparatus for, and methods of, producing magnetic reed contact units wherein a first contact member which is releasably held at one end thereof by support means, magnetically supports a second contact member at the other end thereof such that the ends of the contact members are overlapping and the longitudinal axes thereof are in alignment, the alignment being maintained during subsequent stages of the production method by a magnetic field established in or in the vicinity of the second contact member, wherein a double open-ended enclosure member is passed over the contact members, the means for establishing the aligning magnetic field being de-energised and removed to facilitate this operation, and wherein the aligned contact members are sealed within the enclosure member such that end portions thereof are overlapping and separated from each other by a desired amount.
|
89 |
Method of sealing reed switches using infrared energy |
US3660064D |
1970-01-29 |
US3660064A |
1972-05-02 |
ROHDE TERRY L |
A method of sealing a magnetic reed in the open end of a tube of infrared absorbing glass uses an elliptical reflector with an infrared energy source at one focal point. The open end of the tube is disposed at the second focal point of the elliptical reflector with the axis of the tube extending along an extension of the line connecting the two focal points. The end of the tube to be sealed is also received within a conical reflector with the tube axis aligned with the axis of the cone of reflection. The conical reflector is moved along the axis of the tube as the glass softens to form the seal so as to concentrate the infrared energy on the top of the seal.
|
90 |
Apparatus for removing an article clamped in a workholder |
US3586179D |
1969-11-26 |
US3586179A |
1971-06-22 |
PINNOLIS SAMUEL; SCHMIDT WILHELM E A |
An apparatus opens clamping jaws on workholders mounted on a turret and then unloads articles held by resilient clamps on the workholder. A pair of open jaws are moved about an article held in a workholder and then closed while spring members bear against the article urging it against inner faces of the jaws. The jaws are withdrawn and opened to release the article into a bin which has a plurality of compartments and is indexed in synchronism with the turret so that articles removed from a particular workholder are always delivered to the same compartment of the receiving bin.
|
91 |
Method of assembling dry reed switches |
US3550268D |
1969-04-24 |
US3550268A |
1970-12-29 |
SANTI JOHN D |
|
92 |
Method of and apparatus for producing magnetic reed switches |
US3537276D |
1967-06-08 |
US3537276A |
1970-11-03 |
PITYO EDWARD L |
|
93 |
Apparatus for removing an article clamped in a workholder |
US3491900D |
1967-03-03 |
US3491900A |
1970-01-27 |
PINNOLIS SAMUEL; SCHMIDT WILHELM E A |
|
94 |
Method for adjusting contacts in reed switches |
US3432282D |
1962-10-09 |
US3432282A |
1969-03-11 |
SCHULZ PETER R |
|
95 |
Apparatus for making pressurized reed switches |
US3421874D |
1966-01-17 |
US3421874A |
1969-01-14 |
CHANOWITZ HARRY |
|
96 |
Method of forming projections in reed switch assemblies by selective heat softening |
US31945763 |
1963-10-28 |
US3369882A |
1968-02-20 |
JOHN KUTYLA |
|
97 |
Method of and an apparatus for making sealed switches |
US31938363 |
1963-10-28 |
US3322524A |
1967-05-30 |
HARRY CHANOWITZ |
|
98 |
Method of sealing contact reeds in a glass tube |
US22306862 |
1962-09-12 |
US3284876A |
1966-11-15 |
HELMUT BUTTEL |
|
99 |
Method of and apparatus for making sealed switches |
US30944963 |
1963-09-17 |
US3282670A |
1966-11-01 |
HARRY CHANOWITZ; WEINREICH GEORGE F |
|
100 |
Method of and apparatus for sealing glass-type envelopes |
US19158562 |
1962-05-01 |
US3266124A |
1966-08-16 |
JOHN LYSAK |
|