US3827359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater demolition device
Assignee: Individual
•
Filing: 1968-08-28
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Granted: 1974-08-06
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Expires: 1988-08-28
Abstract
Abstract A device for attaching an explosive charge to an underwater portion of a sea-going vessel including an adhesive substance having a suitable chemical material therein adapted to react with sea water and initiate an exothermic reaction which melts the adhesive substance and bonds the device and any connected explosive charge to the hull of the vessel.
Inventors
- 👤 R Daughenbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:23
CPC Classifications
F; F42; F42B; F42B3/00; C; C09; C09J; C09J5/00; C09J5/06; F42B22/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
109 words
An underwater device for bonding an explosive charge to an object comprising: a mass of material having adhesive characteristics when softened by the application of heat; means for raising the temperature of the mass to thereby increase its adhesive characteristics during application to an object, the mass being disposed between the explosive charge and the object to which it is to be attached, said mass having a central opening to permit the blast from the explosive charge an unobstructed path to the object on which it is bonded; and a heat shield positioned between the explosive charge and the adhEsive mass to insulate said charge from premature firing thereof.
Claim 2
Dependent Claim
109 words
An underwater device for bonding an explosive charge to an object comprising: a mass of material having adhesive characteristics when softened by the application of heat; means for raising the temperature of the mass to thereby increase its adhesive characteristics during application to an object, the mass being disposed between the explosive charge and the object to which it is to be attached, said mass having a central opening to permit the blast from the explosive charge an unobstructed path to the object on which it is bonded; and a heat shield positioned between the explosive charge and the adhEsive mass to insulate said charge from premature firing thereof.
Claim 3
Dependent Claim
25 words
The device of claim 1 wherein the mass of adhesive material is employed as the means for bonding the explosive charge to an underwater surface.
Claim 4
Dependent Claim
25 words
The device of claim 1 wherein the heat from a controlled exothermic chemical reaction is the means for raising the temperature of the adhesive mass.
Claim 5
Dependent Claim
27 words
The device of claim 1 wherein a metal foil heat exchanger is embedded in the adhesive mass for distributing the heat rapidly and evenly throughout said mass.
Claim 6
Dependent Claim
33 words
The device as defined in claim 3 wherein: a tank is embedded in the adhesive material, said tank having a tube connected thereto and opening to the outside of the adhesive material; and
Claim 7
Independent Claim
97 words
The method of bonding an underwater explosive charge to an object comprising: attaching a mass of adhesive material to a suitable explosive charge, said mass having a central opening to permit the blast from the explosive charge an unobstructed path to the object on which it is bonded; inserting in a suitable manner a flexible heat shield between the adhesive material and the explosive charge; heating the adhesive material by a controlled exothermic chemical reaction within the adhesive to thereby increase its adhesive characteristics; and adhering the adhesive material with the attached explosive charge against an object.
Claim 8
Independent Claim
97 words
The method of bonding an underwater explosive charge to an object comprising: attaching a mass of adhesive material to a suitable explosive charge, said mass having a central opening to permit the blast from the explosive charge an unobstructed path to the object on which it is bonded; inserting in a suitable manner a flexible heat shield between the adhesive material and the explosive charge; heating the adhesive material by a controlled exothermic chemical reaction within the adhesive to thereby increase its adhesive characteristics; and adhering the adhesive material with the attached explosive charge against an object.
Claim 9
Dependent Claim
27 words
The method of claim 6 wherein is included the step of distributing the heat more rapidly throughout the adhesive material by incorporating a suitable heat exchanger therein.
Claim 10
Dependent Claim
27 words
The method of claim 6 wherein said controlled exothermic chemical reaction is initiated by the step of adding water to suitable chemicals positioned within the adhesive material.
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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |