US3859534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray tube housing
Assignee: Philips Nuclear Medicine Inc
•
Filing: 1972-02-14
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Granted: 1975-01-07
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Expires: 1992-02-14
Abstract
Abstract A housing for an x-ray tube is described in which a tubular liner of higher tensile strength metal, such as steel, is provided on the inner surface of a housing member in order to prevent destruction of the housing member in the event a rotating anode in such tube breaks at high rotation speed. The liner can be a split sleeve of perforated sheet metal which is held in contact with the housing member by pressing a tubular shield of x-ray absorbing material, such as lead, outward to deform the shield until the liner is clamped between such shield and the inner surface of the housing.
Inventors
- 👤 Peter A Loughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:00
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/02; H05G1/04; H01; H01J; H01J35/00; H01J35/02; H01J35/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
144 words
A rotary anode x-ray tube housing apparatus comprising: a hollow housing member having an x-ray transparent window portion; means for mounting an x-ray tube having a rotary anode within said housing member so that x-rays emitted from said tube are transmitted through said window portion; a tubular shield of x-ray absorbing material provided inside the housing member over the inner surface of said housing member, said shield having an opening aligned with said window portion; and a tubular liner member of metal different from, and of a higher tensile strength than, the material of said housing member and said shield, said liner member being an integral, one-piece member provided within said housing member in position substantially completely surrounding said x-ray tube except for an opening aligned with said window portion to prevent destruction of the housing member in the event the x-ray tube breaks.
Claim 2
Dependent Claim
144 words
A rotary anode x-ray tube housing apparatus comprising: a hollow housing member having an x-ray transparent window portion; means for mounting an x-ray tube having a rotary anode within said housing member so that x-rays emitted from said tube are transmitted through said window portion; a tubular shield of x-ray absorbing material provided inside the housing member over the inner surface of said housing member, said shield having an opening aligned with said window portion; and a tubular liner member of metal different from, and of a higher tensile strength than, the material of said housing member and said shield, said liner member being an integral, one-piece member provided within said housing member in position substantially completely surrounding said x-ray tube except for an opening aligned with said window portion to prevent destruction of the housing member in the event the x-ray tube breaks.
Claim 3
Dependent Claim
40 words
A housing apparatus in accordance with claim 1 in which the liner member is provided on the inner surface of the housing member beneath the shield and is of less thickness than the wall of the housing and the shield.
Claim 4
Dependent Claim
19 words
A housing apparatus in accordance with claim 2 in which the liner member is made of perforated sheet metal.
Claim 5
Dependent Claim
17 words
A housing apparatus in accordance with claim 1 in which the liner member is made of steel.
Claim 6
Dependent Claim
16 words
A housing apparatus in accordance with claim 4 in which the shield is made of lead.
Claim 7
Dependent Claim
17 words
A housing apparatus in accordance with claim 5 in which the housing member is made of aluminum.
Claim 8
Dependent Claim
19 words
A housing apparatus in accordance with claim 6 in which the window portion is made of a plastic material.
Claim 9
Dependent Claim
17 words
A housing apparatus in accordance with claim 1 in which the liner member is a split sleeve.
Claim 10
Dependent Claim
34 words
A housing apparatus in accordance with claim 8 in which the shield is a layer of lead which holds the split sleeve liner member in contact with the inner surface of the housing member.
References Cited (Backward Citations)
US1874672A
Cited
US3134903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |