US3661004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive tubing swager
Assignee: Zeneca Inc
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Filing: 1969-11-07
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Granted: 1972-05-09
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Expires: 1989-11-07
Abstract
Abstract A non-rupturable spool and an explosive cartridge formed therewith useful for swaging tubing. An explosive charge is contained within the spool and a transfer media, such as rubber, is placed over the spool to form the cartridge. The cartridge is inserted into a tube and the charge is detonated which swages the tube against a sleeve or die.
Inventors
- 👤 John T M Lee
- 👤 Donald P Keathley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:47
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/02; B21D26/06; B21D26/08; B21D39/00; B21D39/04; B21D39/042; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806; Y10T29/49826; Y10T29/49908; Y10T29/49909; Y10T29/49911
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
92 words
A metal Tube swaging device comprising a non-rupturable cylindrical metal piece having a head portion, a ductile deformable middle portion, a substantially non-compressible transfer medium covering said middle portion and an end portion, said middle portion having a lesser diameter than said head and said end portion, a well means extending from said head portion into said middle portion for the placement of an explosive charge and for completely containing the products of decomposition developed in the well by the detonation of the charge to deform the middle portion and transfer medium.
Claim 2
Dependent Claim
92 words
A metal Tube swaging device comprising a non-rupturable cylindrical metal piece having a head portion, a ductile deformable middle portion, a substantially non-compressible transfer medium covering said middle portion and an end portion, said middle portion having a lesser diameter than said head and said end portion, a well means extending from said head portion into said middle portion for the placement of an explosive charge and for completely containing the products of decomposition developed in the well by the detonation of the charge to deform the middle portion and transfer medium.
Claim 3
Dependent Claim
14 words
The spool of claim 1 wherein an explosive charge is contained in said well.
Claim 4
Dependent Claim
15 words
The cartridge of claim 2 wherein a means is provided for firing said explosive charge.
Claim 5
Dependent Claim
17 words
The cartridge of claim 3 wherein said middle portion has a solid portion adjacent said end portion.
Claim 6
Dependent Claim
11 words
The cartridge of claim 3 wherein said end portion is relieved.
Claim 7
Dependent Claim
12 words
The cartridge of claim 3 wherein said transfer medium is an elastomer.
Claim 8
Dependent Claim
23 words
The cartridge of claim 3 wherein the outside diameter of said transfer medium is approximately equal to the diameter of said end portion.
Claim 9
Dependent Claim
17 words
The cartridge of claim 3 wherein said head portion has a greater diameter than said end portion.
Claim 10
Dependent Claim
18 words
The cartridge of claim 3 wherein there is a sealing ring on each side of said transfer medium.
Claim 11
Dependent Claim
13 words
The cartridge of claim 3 wherein said firing means is a percussion primer.
Claim 12
Dependent Claim
20 words
The cartridge of claim 10 wherein said head portion contains a void between said explosive charge and said percussion primer.
Claim 13
Dependent Claim
13 words
The cartridge of claim 3 wherein said explosive charge is a high explosive.
Claim 14
Dependent Claim
12 words
The cartridge of claim 12 wherein said high explosive comprises lead azide.
Claim 15
Dependent Claim
29 words
The cartridge of claim 12 wherein said high explosive comprises a primary explosive at the top of said well and a secondary explosive at the base of said well.
References Cited (Backward Citations)
US3036373A
Cited
US3127923A
Cited
US3120259A
Cited
US3446047A
Cited
US3411687A
Cited
US3566646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |