US3677339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coiled tube banks
Assignee: Individual
•
Filing: 1970-01-15
•
Granted: 1972-07-18
•
Expires: 1990-01-15
Abstract
Abstract A tube bank arrangement comprising a plurality of concentric coils provided with spacing means and including, for each coil, at least one spacer bar extending parallel to the axis of the tube bank. The spacer bar being aligned with the spacer bar of the next adjacent coil and including radially extending lugs mounted on one of the two adjacent spacer bars and straddling the coil segments passing therebetween. The lugs maintaining the spacing between adjacent spacer bars and cooperating with a locking strip to secure the coil segments to the associated spacer bar.
Inventors
- 👤 Alfred J Perrin
- 👤 John D Dell
- 👤 David B Evans
- 👤 George Stanley Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:58
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/007; F28F9/013; F28F9/0132; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/202; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/40; Y10S165/401; Y10S165/405; Y10S165/412
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
184 words
A tube bank arrangement comprising a plurality of concentric coils provided with spacer means, wherein the spacer means includes, for each coil, at least one spacer bar extending in a direction subStantially parallel to the axis of said tube bank, said spacer bar being aligned with a spacer bar of the next adjacent coil so that a row of spacer bars extends radially of the concentric coils, the interval between adjacent spacer bars including, for each coil segment passing therebetween, a pair of spacing lugs contiguously straddling the coil segment, each of the lugs having an end connectively associated with one spacer bar and an opposite end abutting a portion of the adjacent spacer bar, and means for securing respective coil segments to said associated spacer bar, said lug abutting end being formed with a plurality of tongues and the securing means including a locking strip interposed between the coil segments and said adjacent spacer bar, the locking strip being engaged with at least one of the tongues of each of said lugs to secure the respective coil segments to said associated spacer bar.
Claim 2
Dependent Claim
184 words
A tube bank arrangement comprising a plurality of concentric coils provided with spacer means, wherein the spacer means includes, for each coil, at least one spacer bar extending in a direction subStantially parallel to the axis of said tube bank, said spacer bar being aligned with a spacer bar of the next adjacent coil so that a row of spacer bars extends radially of the concentric coils, the interval between adjacent spacer bars including, for each coil segment passing therebetween, a pair of spacing lugs contiguously straddling the coil segment, each of the lugs having an end connectively associated with one spacer bar and an opposite end abutting a portion of the adjacent spacer bar, and means for securing respective coil segments to said associated spacer bar, said lug abutting end being formed with a plurality of tongues and the securing means including a locking strip interposed between the coil segments and said adjacent spacer bar, the locking strip being engaged with at least one of the tongues of each of said lugs to secure the respective coil segments to said associated spacer bar.
Claim 3
Dependent Claim
34 words
A tube bank arrangement according to claim 1 wherein the locking strip includes a generally flat bar having perforations along its length for receiving the free-end of said engaged tongues in locking relationship therewith.
Claim 4
Dependent Claim
21 words
A tube bank arrangement according to claim 2 wherein said free-end is bent-over the radially outer face of the flat bar.
Claim 5
Dependent Claim
41 words
A tube bank arrangement according to claim 1 wherein the locking strip includes a resilient bar of arcuate cross-section, said bar being engaged with two tongues of each of said lugs and being in rebounding contact with the respective coil segments.
References Cited (Backward Citations)
US622778A
Cited
US1687832A
Cited
US826300A
Cited
US1850021A
Cited
US2375513A
Cited
US3286767A
Cited
US3545534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |