Patent US2802482A successfully refreshed from Google Patents.
Patent US943231A successfully refreshed from Google Patents.
Patent US3695178A successfully refreshed from Google Patents.
US3695178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delta squib circuit
Assignee: Individual
•
Filing: 1970-11-09
•
Granted: 1972-10-03
•
Expires: 1990-11-09
Abstract
Abstract An electroexplosive device disposed for energization for creating a spark flame and/or gaseous discharge which is utilized to perform a work function such as igniting the propellant igniter in a rocket to initiate launch thereof.
Inventors
- 👤 Robert E Betts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:42
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/95; F42; F42B; F42B3/00; F42B3/10; F42B3/12; F42B3/124
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
55 words
An electroexplosive initiator comprising: a. a housing enclosing a propellant charge; b. three of terminals each having a first end carried in said housing adjacent said propellant charge and a second end extending out of said housing; and, c. bridge wire means connected to said first end of said terminals in a Delta circuit relationship.
Claim 2
Dependent Claim
55 words
An electroexplosive initiator comprising: a. a housing enclosing a propellant charge; b. three of terminals each having a first end carried in said housing adjacent said propellant charge and a second end extending out of said housing; and, c. bridge wire means connected to said first end of said terminals in a Delta circuit relationship.
Claim 3
Dependent Claim
36 words
A device as set forth in claim 1 wherein said three terminals are mounted in said housing in a triangular arrangement and wherein said bridge wire means are a low resistance wire connected between said terminals.
Claim 4
Dependent Claim
56 words
A device as set forth in claim 2 wherein said bridge wire means includes a first bridge wire connected between a first and second of said three terminals, a second bridge wire connected between said second and the third of said three terminals, and, a third bridge wire connected between said third and said first terminals.
Claim 5
Dependent Claim
72 words
A device as set forth in claim 3 including a closure plate disposed adjacent a first end of said body, an insulating member mounted in said body adjacent the second end thereof and in spaced relation with said closure plate to form a cavity therebetween, said terminals extending into said body through said insulating members, and, said bridge wires being connected adjacent the ends of said terminals which terminate in said cavity.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |