Patent US3586100A successfully refreshed from Google Patents.
US3586100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat dissipating devices for the collectors of electron-beam tube
Assignee: NEC Corp
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Filing: 1969-03-21
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Granted: 1971-06-22
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Expires: 1989-03-21
Abstract
Abstract A heat-dissipating device for the collectors of electron-beam tubes such as a traveling wave tube. The collector slides loosely into a bore within a cylindrical heat-absorbing and conducting member. The heat-absorbing member is connected to a finned heatradiating structure to which heat is conducted for dissipation. A tight fitting between the collector and the heat-absorbing member is created by the presence of a restraining collar placed around the heat-absorbing member. The collar has a smaller coefficient of expansion than the heat-absorbing member, and the heatabsorbing member has longitudinal slots therein, the net effect of which is to cause the heat-absorbing member to constrict about the collector when the assembly heats to operating temperature.
Inventors
- 👤 Susumu Yasuda
- 👤 Ryuzo Orui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:22
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/027; H01J23/033; F; F28; F28F; F28F13/00; H01J19/00; H01J19/28; H01J19/32; H01J19/36; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0027
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
237 words
A heat-dissipating device for the collector of an electronbeam tube comprising a heat-radiating member, a heat-conducting member disposed adjacent said heat-radiating member in thermal contact therewith, said heat-conducting member having an axial bore having a normal diameter for relatively loosely receiving therein the collector of an electron-beam tube prior to the operation of the tube, said bore extending from one end of said heat-conducting member inwardly a distance corresponding to at least a fraction of the full length thereof, at least one slot extending in the axial direction of said bore a distance corresponding to at least a fraction of the full length of said heat-conducting member and in the transverse direction thereof the full width of said heat-conducting member, and at least one annular member fitted on the peripheral surface of said heatconducting member coaxially therewith and surrounding at least a fraction of the full length thereof containing said at least one slot, said at least one annular member being made of a material possessing a smaller thermal expansion coefficient than that of the material of which said heat-conducting member is made, said annular member defining means when the tube is in operation and thus heated for acting upon said conducting member to thereby restrain the outward radial expansion of said heat-conducting member, modify the diameter of said bore, and cause the collector to establish a relatively close fit between the collector and said heat-conducting member.
Claim 2
Dependent Claim
237 words
A heat-dissipating device for the collector of an electronbeam tube comprising a heat-radiating member, a heat-conducting member disposed adjacent said heat-radiating member in thermal contact therewith, said heat-conducting member having an axial bore having a normal diameter for relatively loosely receiving therein the collector of an electron-beam tube prior to the operation of the tube, said bore extending from one end of said heat-conducting member inwardly a distance corresponding to at least a fraction of the full length thereof, at least one slot extending in the axial direction of said bore a distance corresponding to at least a fraction of the full length of said heat-conducting member and in the transverse direction thereof the full width of said heat-conducting member, and at least one annular member fitted on the peripheral surface of said heatconducting member coaxially therewith and surrounding at least a fraction of the full length thereof containing said at least one slot, said at least one annular member being made of a material possessing a smaller thermal expansion coefficient than that of the material of which said heat-conducting member is made, said annular member defining means when the tube is in operation and thus heated for acting upon said conducting member to thereby restrain the outward radial expansion of said heat-conducting member, modify the diameter of said bore, and cause the collector to establish a relatively close fit between the collector and said heat-conducting member.
Claim 3
Dependent Claim
180 words
A heat-dissipating device for heat-generating electronic elements or the like comprising: a heat-dissipating structure having a recess therein, heat-conducting means positioned within the recess of and in heat-transferring relationship with said heat-dissipating structure so that heat will flow from said heat-conducting member to said heat-dissipating structure, said heat-conducting means having an aperture therein adapted to slidingly receive a heat-generating element, and at least one substantially longitudinal slot througH the body thereof communicating around and against a portion of said heat-conducting means and within a plane substantially normal to the longitudinal axis there to retard outward radial expansion of said heat-conducting means, said band being constructed of a material having a coefficient of expansion substantially smaller than the coefficient of expansion of the material of which said heat-conducting means is constructed, so that when heated by the heat-generating element placed therein, said retaining band means acts on said heat-conducting means to cause the latter to expand radially inwardly and thereby modify the diameter of said aperture to thereby establish a relatively close fit between the heat-generating element and said heat-conducting means.
Claim 4
Dependent Claim
180 words
A heat-dissipating device for heat-generating electronic elements or the like comprising: a heat-dissipating structure having a recess therein, heat-conducting means positioned within the recess of and in heat-transferring relationship with said heat-dissipating structure so that heat will flow from said heat-conducting member to said heat-dissipating structure, said heat-conducting means having an aperture therein adapted to slidingly receive a heat-generating element, and at least one substantially longitudinal slot througH the body thereof communicating around and against a portion of said heat-conducting means and within a plane substantially normal to the longitudinal axis there to retard outward radial expansion of said heat-conducting means, said band being constructed of a material having a coefficient of expansion substantially smaller than the coefficient of expansion of the material of which said heat-conducting means is constructed, so that when heated by the heat-generating element placed therein, said retaining band means acts on said heat-conducting means to cause the latter to expand radially inwardly and thereby modify the diameter of said aperture to thereby establish a relatively close fit between the heat-generating element and said heat-conducting means.
Claim 5
Dependent Claim
48 words
The device of claim 2 wherein said retaining band is disposed around the area of said heat-conducting means containing said slot, and wherein said heat-conducting means has a neck therein, said neck being between the portion of said heat-conducting means having the slot therein and the remainder thereof.
Claim 6
Dependent Claim
42 words
The device of claim 3 wherein said heat-dissipating structure and said heat-conducting means have a common bore therethrough sized to slidingly receive a collector of an electron-beam tube, and wherein the aperture in said heat-conducting means comprises a portion of the bore.
Claim 7
Dependent Claim
40 words
The device of claim 4 wherein said heat-conducting device is substantially cylindrical and has opposing slots therein along a plane containing the longitudinal axis of said heat-conducting device, and extending from the end opposite the neck thereof through said neck.
Claim 8
Dependent Claim
27 words
The device of claim 5 wherein said retaining band comprises a ring frictionally fitted around a substantial portion of said cylindrical heat-conducting means containing the opposing slots.
Claim 9
Dependent Claim
57 words
The device of claim 6 wherein one end of said heat-conducting means abuts said heat-dissipating structure, and wherein a substantial portion of said heat-conducting means opposite said abutting end tapers outwardly, and wherein said retaining ring tapers correspondingly, and wherein said heat-dissipating device is further comprised of means to thread said retaining ring into said heat-conducting means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |