Patent US5539150A successfully refreshed from Google Patents.
US5539150A
Expired / Lapsed
US
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Kit and method of making radiation shields
Assignee: American Etching and Manufacturing
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Filing: 1995-01-18
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Granted: 1996-07-23
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Expires: 2015-01-18
Abstract
Abstract A radiation shield is fashioned from a kit having a plate of electrically conductive material with a grid of troughs cut therein. The grid is used to trace the dimensions of a portion of the electrically conductive plate needed to fashion a particular radiation shield. The troughs are cut to a sufficient depth to allow material to be snapped back and broken off by hand along the troughs. Material is bent at 90 degree angles along the troughs to form walls for a radiation shield. Thus, radiation shields in the form of various rectilinear boxes comprising a wide variety of shapes and dimensions may be fashioned from a kit according to the present invention.
Inventors
- 👤 Gary S. Kipka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:41
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0049
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
101 words
A kit for forming a radiation shield, comprising an electrically conductive plate having uniformly spaced parallel first straight troughs extending longitudinally fully across the plate and uniformly spaced parallel second straight troughs extending longitudinally fully across the plate perpendicular to the first troughs, the first and second troughs having sufficient depth to allow bending of the plate at any one of the troughs to 90° in either direction with all bending occurring at the trough and breaking of the plate at any one of the troughs by bending of the plate at the trough sequentially in both directions at least once.
Claim 2
Dependent Claim
101 words
A kit for forming a radiation shield, comprising an electrically conductive plate having uniformly spaced parallel first straight troughs extending longitudinally fully across the plate and uniformly spaced parallel second straight troughs extending longitudinally fully across the plate perpendicular to the first troughs, the first and second troughs having sufficient depth to allow bending of the plate at any one of the troughs to 90° in either direction with all bending occurring at the trough and breaking of the plate at any one of the troughs by bending of the plate at the trough sequentially in both directions at least once.
Claim 3
Dependent Claim
25 words
The kit of claim 1 wherein the depth of the first and second troughs is at least approximately one half the electrically conductive plate's thickness.
Claim 4
Dependent Claim
12 words
The kit of claim 1 wherein the electrically conductive plate is copper.
Claim 5
Dependent Claim
15 words
The kit of claim 1 wherein the electrically conductive plate is plated with tin-lead solder.
Claim 6
Independent Claim
111 words
A method of fabricating a radiation shield comprising the steps of cutting a grid of troughs into an electrically conductive plate, separating material from said plate along the troughs on said grid to form a rectangular portion of said plate with four corners, cutting the four corners of said rectangular portion to create eight corner slugs, removing the eight corner slugs of said rectangular portion to form a cross-shaped portion comprising a rectangular center portion and four flaps joined to said rectangular center portion along four troughs, and bending the four flaps of said cross-shaped portion along said four troughs to form a radiation shield with a cover and four walls.
Claim 7
Independent Claim
111 words
A method of fabricating a radiation shield comprising the steps of cutting a grid of troughs into an electrically conductive plate, separating material from said plate along the troughs on said grid to form a rectangular portion of said plate with four corners, cutting the four corners of said rectangular portion to create eight corner slugs, removing the eight corner slugs of said rectangular portion to form a cross-shaped portion comprising a rectangular center portion and four flaps joined to said rectangular center portion along four troughs, and bending the four flaps of said cross-shaped portion along said four troughs to form a radiation shield with a cover and four walls.
Claim 8
Dependent Claim
12 words
The method of claim 5 wherein the electrically conductive plate is copper.
Claim 9
Dependent Claim
15 words
The method of claim 5 wherein the grid of troughs is cut by photochemical etching.
Claim 10
Dependent Claim
43 words
A radiation shield in the form of an open box comprising four walls and a cover, said radiation shield comprising a single plate of electrically conductive material, said four walls and cover joined along troughs cut into said plate of electrically conductive material.
Claim 11
Dependent Claim
43 words
A radiation shield in the form of an open box comprising four walls and a cover, said radiation shield comprising a single plate of electrically conductive material, said four walls and cover joined along troughs cut into said plate of electrically conductive material.
Claim 12
Dependent Claim
24 words
The radiation shield of claim 8 wherein the troughs have a depth which is approximately at least one half the electrically conductive plate's thickness.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-07-23 | 2000-01-22 | 2000-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-23 | 2004-01-22 | 2004-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-23 | 2008-01-22 | 2008-07-23 | $7700.00 | Window Closed / Lapsed |