US5220957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube shield installation using lugs and slots
Assignee: H & T TUBE SHIELDS Inc
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Filing: 1992-06-05
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Granted: 1993-06-22
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Expires: 2012-06-05
Abstract
Abstract A tube and tube shield assembly comprises a cylindrical tube having a lug extending radially therefrom and a tube shield. The tube shield includes a semi-cylindrical shield member having a diameter substantially equal to that of the tube, the shield member having a slot formed therein for receiving the lug, and a retainer for retaining the shield member in engagement around the tube. The tube shield has an upper end and a lower end, and the slot is formed either extending inwardly of the lower end, for use with vertically-oriented tubes, or the tube shield has the slot formed intermediate its ends, for use with horizontally-oriented tubes. The retainer can comprise at least two U-shaped straps, each of the straps having opposed ends attached, for example by welding, to the tube shield.
Inventors
- 👤 Carl L. Hance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:42
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/107; F28; F28F; F28F19/00; F28F19/002; Y; Y10; Y10S; Y10S122/00; Y10S122/13
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
68 words
A tube and tube shield assembly comprising: a cylindrical tube having a lug extending radially therefrom; and a tube shield mounted on said tube, said tube shield including: a semi-cylindrical shield member having a diameter substantially equal to that of sad tube, said shield member having a slot formed therein, said lug engaging said slot; and retaining means for retaining said shield member in engagement around said tube.
Claim 2
Dependent Claim
68 words
A tube and tube shield assembly comprising: a cylindrical tube having a lug extending radially therefrom; and a tube shield mounted on said tube, said tube shield including: a semi-cylindrical shield member having a diameter substantially equal to that of sad tube, said shield member having a slot formed therein, said lug engaging said slot; and retaining means for retaining said shield member in engagement around said tube.
Claim 3
Dependent Claim
29 words
The assembly of claim 1, wherein said shield member has an upper end and a lower end, and wherein said slot is formed extending inwardly of said lower end.
Claim 4
Dependent Claim
21 words
The assembly of claim 1, wherein said shield member has opposed ends, and wherein said slot is formed intermediate said ends.
Claim 5
Dependent Claim
27 words
The assembly of claim 1, wherein said retaining means comprises at least two U-shaped straps, each of said straps having opposed ends attached to said shield member.
Claim 6
Dependent Claim
62 words
The assembly of claim 1, wherein said retaining means comprises: at least two U-bolts, each of said U-bolts having opposed ends extending around said shield member; at least two elongated bars, each of said bars having holes therethrough for receiving said opposed ends of one of said U-bolts; and fastening means for fastening each of said bars on one of said U-bolts.
Claim 7
Dependent Claim
70 words
A tube and tube shield assembly comprising: a cylindrical tube having a lug extending radially therefrom; and a cylindrical shield mounted on said tube, said tube shield including: a semi-cylindrical shield member formed to cover more than one-half of the circumference of said tube and having when unmounted a radius slightly smaller than that of said tube, said shield member having a slot formed therein, said lug engaging said slot.
Claim 8
Dependent Claim
70 words
A tube and tube shield assembly comprising: a cylindrical tube having a lug extending radially therefrom; and a cylindrical shield mounted on said tube, said tube shield including: a semi-cylindrical shield member formed to cover more than one-half of the circumference of said tube and having when unmounted a radius slightly smaller than that of said tube, said shield member having a slot formed therein, said lug engaging said slot.
Claim 9
Dependent Claim
64 words
A tube shield for placement around a cylindrical tube having a lug extending radially therefrom, said tube shield comprising: a metal semi-cylinder having a slot formed therein for engaging said lug; and retaining means for retaining said semi-cylinder in engagement around the tube, wherein said retaining means comprises at least two U-shaped straps, each of said straps having opposed ends attached to said semi-cylinder.
Claim 10
Dependent Claim
64 words
A tube shield for placement around a cylindrical tube having a lug extending radially therefrom, said tube shield comprising: a metal semi-cylinder having a slot formed therein for engaging said lug; and retaining means for retaining said semi-cylinder in engagement around the tube, wherein said retaining means comprises at least two U-shaped straps, each of said straps having opposed ends attached to said semi-cylinder.
Claim 11
Dependent Claim
29 words
The tube shield of claim 7, wherein said semi-cylinder has an upper end and a lower end, and wherein said slot is formed extending inwardly of said lower end.
Claim 12
Dependent Claim
21 words
The tube shield of claim 7, wherein said semi-cylinder has opposed ends, and wherein said slot is formed intermediate said ends.
Claim 13
Dependent Claim
100 words
A tube shield for placement around a cylindrical tube having a lug extending radially therefrom, said tube shield comprising: a metal semi-cylinder having a slot formed therein for engaging said lug; and retaining means for retaining said semi-cylinder in engagement around the tube, wherein said retaining means comprises: at least two U-bolts, each of said U-bolts having opposed ends extending around said shield member; at least two elongated bars, each of said bars having holes therethrough for receiving said opposed ends of one of said U-bolts; and fastening means for fastening each of said bars on one of said U-bolts.
Claim 14
Dependent Claim
100 words
A tube shield for placement around a cylindrical tube having a lug extending radially therefrom, said tube shield comprising: a metal semi-cylinder having a slot formed therein for engaging said lug; and retaining means for retaining said semi-cylinder in engagement around the tube, wherein said retaining means comprises: at least two U-bolts, each of said U-bolts having opposed ends extending around said shield member; at least two elongated bars, each of said bars having holes therethrough for receiving said opposed ends of one of said U-bolts; and fastening means for fastening each of said bars on one of said U-bolts.
Claim 15
Dependent Claim
29 words
The tube shield of claim 10, wherein said semi-cylinder has an upper end and a lower end, and wherein said slot is formed extending inwardly of said lower end.
Claim 16
Dependent Claim
21 words
The tube shield of claim 10, wherein said semi-cylinder has opposed ends, and wherein said slot is formed intermediate said ends.
Claim 17
Dependent Claim
60 words
A tube shield for mounting around a cylindrical tube having a lug extending radially therefrom, said tube shield comprising a metal semi-cylinder having a slot formed therein for engaging said lug, wherein said semi-cylinder is formed to cover more than one-half of the circumference of said tube and has when unmounted a radius slightly smaller than that of said tube.
Claim 18
Dependent Claim
60 words
A tube shield for mounting around a cylindrical tube having a lug extending radially therefrom, said tube shield comprising a metal semi-cylinder having a slot formed therein for engaging said lug, wherein said semi-cylinder is formed to cover more than one-half of the circumference of said tube and has when unmounted a radius slightly smaller than that of said tube.
Claim 19
Dependent Claim
29 words
The tube shield of claim 13, wherein said semi-cylinder has an upper end and a lower end, and wherein said slot is formed extending inwardly of said lower end.
Claim 20
Dependent Claim
21 words
The tube shield of claim 13, wherein said semi-cylinder has opposed ends, and wherein said slot is formed intermediate said ends.
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) | 1996-06-21 | 1996-12-21 | 1997-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-21 | 2000-12-21 | 2001-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-21 | 2004-12-21 | 2005-06-22 | $7700.00 | Window Closed / Lapsed |