US3772559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode mounts for cold cathode lamps
Assignee: Individual
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Filing: 1971-09-07
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Granted: 1973-11-13
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Expires: 1991-09-07
Abstract
Abstract Peripherally welding straight contact pins at the base of the electrodes in a cold cathode lamp provides an electrode mount and lamp structure capable of withstanding and remaining functional when subjected to high vibratory and/or shock conditions. While the preferred electrode mount employs straight contact pins welded to the base of the electrode and passed through a cooperating enveloping glass tube, it has been found that an inexpensive electrode mount can be provided by bending commercially available miniature electron tube contact pin assemblies to peripherally surround the electrode and then welding the contact pins to the base of a hollow electrode. Commercially available glass tubes are then sealed to the contact pin assemblies. While any bending of the supporting contact pins is not desired, the inexpensive electrode mount, although not the most preferred form, is still capable of performing under high vibratory and shock conditions.
Inventors
- 👤 J Schoke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:21
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/70; H01J61/76; H01J61/78; H01J17/00; H01J17/02; H01J17/04; H01J17/06; H01J17/066; H01J2893/00; H01J2893/0064; H01J2893/0065; H01J2893/0066
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
374 words
A discharge lamp comprising: A. an elongated glass tube substantially circular in cross section throughout its length; B. two substantially cylindrical hollow electrodes incorporating convex bases, each axially aligned with and centered in an end of said glass tube; C. a first electron control tube stem comprising a. a substantially circular pin-supporting first base axially aligned with, centered in, and integrally secured at its peripheral edge to one end of said glass tube, and b. seven circularly arrayed electrode supporting pins axially aligned with and centered in an end of said glass tube 1. integrally secured substantially about their mid-points to said first supporting base in a substantially circular array axially aligned with and centered in an end of said glass tube, 2. at least all but one pair of said pins being equally spaced in said circular array, 3. extending from said supporting base both into said glass tube and away from said glass tube, and 4. said pins extending into said glass tube being welded to the base of one of said electrodes in a substantially circular array; D. a second electron control tube stem comprising a. a substantially circular pin-supporting second base axially aligned with, centered in, and integrally secured at its peripheral edge to one end of said glass tube, b. seven circularly arrayed electrode supporting pins axially aligned with and centered in one end of said glass tube 1. integrally secured substantially about their mid-points to said second supporting base in a substantially circular array axially aligned with and centered in one end of said glass tube, 2. at least all but one pair of said pins being equally spaced in said circular array, 3. extending from said supporting base both into said glass tube and away from said glass tube, and 4. said pins extending into said glass tube being welded to the base of one of said electrodes in a substantially circular array; c. an air-evacuation tube extending from the center of said second supporting base; and E. two fixture mounting end caps each of which are bonded in electrical conductive relationship to said pins extending away from said supporting base and said glass tube, said end caps being metal circular cylinders closed at their outer ends.
Claim 2
Dependent Claim
374 words
A discharge lamp comprising: A. an elongated glass tube substantially circular in cross section throughout its length; B. two substantially cylindrical hollow electrodes incorporating convex bases, each axially aligned with and centered in an end of said glass tube; C. a first electron control tube stem comprising a. a substantially circular pin-supporting first base axially aligned with, centered in, and integrally secured at its peripheral edge to one end of said glass tube, and b. seven circularly arrayed electrode supporting pins axially aligned with and centered in an end of said glass tube 1. integrally secured substantially about their mid-points to said first supporting base in a substantially circular array axially aligned with and centered in an end of said glass tube, 2. at least all but one pair of said pins being equally spaced in said circular array, 3. extending from said supporting base both into said glass tube and away from said glass tube, and 4. said pins extending into said glass tube being welded to the base of one of said electrodes in a substantially circular array; D. a second electron control tube stem comprising a. a substantially circular pin-supporting second base axially aligned with, centered in, and integrally secured at its peripheral edge to one end of said glass tube, b. seven circularly arrayed electrode supporting pins axially aligned with and centered in one end of said glass tube 1. integrally secured substantially about their mid-points to said second supporting base in a substantially circular array axially aligned with and centered in one end of said glass tube, 2. at least all but one pair of said pins being equally spaced in said circular array, 3. extending from said supporting base both into said glass tube and away from said glass tube, and 4. said pins extending into said glass tube being welded to the base of one of said electrodes in a substantially circular array; c. an air-evacuation tube extending from the center of said second supporting base; and E. two fixture mounting end caps each of which are bonded in electrical conductive relationship to said pins extending away from said supporting base and said glass tube, said end caps being metal circular cylinders closed at their outer ends.
Claim 3
Dependent Claim
16 words
at least all but one pair of said pins being equally spaced in said circular array,
Claim 4
Dependent Claim
16 words
at least all but one pair of said pins being equally spaced in said circular array,
Claim 5
Dependent Claim
16 words
at least all but one pair of said pins being equally spaced in said circular array,
Claim 6
Dependent Claim
16 words
at least all but one pair of said pins being equally spaced in said circular array,
Claim 7
Dependent Claim
24 words
A dischargE lamp as defined in claim 1, wherein said pins are substantially straight and welded at their terminating ends to their respective electrode.
Claim 8
Dependent Claim
30 words
A discharge lamp as defined in claim 1, wherein said pins are peripherally mounted to said electrode substantially about the plane where said convex base blends into said cylindrical portion.
Claim 9
Dependent Claim
17 words
extending from said supporting base both into said glass tube and away from said glass tube, and
Claim 10
Dependent Claim
17 words
extending from said supporting base both into said glass tube and away from said glass tube, and
Claim 11
Dependent Claim
17 words
extending from said supporting base both into said glass tube and away from said glass tube, and
Claim 12
Dependent Claim
17 words
extending from said supporting base both into said glass tube and away from said glass tube, and
Claim 13
Dependent Claim
75 words
said pins extending into said glass tube being welded to the base of one of said electrodes in a substantially circular array; D. a second electron control tube stem comprising a. a substantially circular pin-supporting second base axially aligned with, centered in, and integrally secured at its peripheral edge to one end of said glass tube, b. seven circularly arrayed electrode supporting pins axially aligned with and centered in one end of said glass tube
Claim 14
Dependent Claim
75 words
said pins extending into said glass tube being welded to the base of one of said electrodes in a substantially circular array; D. a second electron control tube stem comprising a. a substantially circular pin-supporting second base axially aligned with, centered in, and integrally secured at its peripheral edge to one end of said glass tube, b. seven circularly arrayed electrode supporting pins axially aligned with and centered in one end of said glass tube
Claim 15
Dependent Claim
27 words
A discharge lamp as defined in claim 3 having an additional eighth pin, wherein all of said pins are secured at equal arcuate distances from each other.
Claim 16
Dependent Claim
76 words
said pins extending into said glass tube being welded to the base of one of said electrodes in a substantially circular array; c. an air-evacuation tube extending from the center of said second supporting base; and E. two fixture mounting end caps each of which are bonded in electrical conductive relationship to said pins extending away from said supporting base and said glass tube, said end caps being metal circular cylinders closed at their outer ends.
Claim 17
Dependent Claim
76 words
said pins extending into said glass tube being welded to the base of one of said electrodes in a substantially circular array; c. an air-evacuation tube extending from the center of said second supporting base; and E. two fixture mounting end caps each of which are bonded in electrical conductive relationship to said pins extending away from said supporting base and said glass tube, said end caps being metal circular cylinders closed at their outer ends.
Claim 18
Dependent Claim
22 words
A discharge lamp as defined in claim 3, wherein the pins are bendingly adjusted to peripherally surround the electrode for welding thereto.
Claim 19
Dependent Claim
41 words
A discharge lamp as defined in claim 3, wherein the arcuate distance between any two adjacent pins but one pair of adjacent pins is equal to the quotient obtained by dividing 360* by one more than the total number of pins.
Claim 20
Dependent Claim
26 words
A discharge lamp as defined in claim 1, wherein the lamp comprises a center of gravity that is offset from the terminating ends of said tube.
Claim 21
Dependent Claim
17 words
A discharge lamp as defined in claim 7, wherein said glass tube comprises a substantially G shape.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |