Patent US3158705A successfully refreshed from Google Patents.
US3158705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination graze and impact switch
Assignee: Individual
•
Filing: 1962-12-04
•
Granted: 1964-11-24
•
Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Robert W Bliss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:33
CPC Classifications
F; F42; F42C; F42C19/00; F42C19/06; H; H01; H01H; H01H35/00; H01H35/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
A COMBINATION GRAZE AND IMPACT SWITCH FOR CLOSING A PROJECTILE ELECTRIC FIRING CIRCUIT AND INCLUDING A LAMINATED ASSEMBLY SECURED IN SAID PROJECTILE, SAID ASSEMBLY COMPRISING A CRUSHABLE MEMBER; A FIRST ELECTRICAL CONDUCTING MEMBER, A SPACING ELEMENT DISPOSED BETWEEN SAID CRUSHABLE MEMBER AND SAID FIRST CONDUCTING MEMBER WHEREBY SAID CRUSHABLE MEMBER IS SPACED FROM SAID FIRST CONDUCTING MEMBER TO FORM A AIR GAP THEREBETWEEN; A SECOND ELECTRICAL CONDUCTING MEMBER; A NONCONDUCTING MEMBER BETWEEN SAID FIRST CONDUCTING MEMBER AND SAID SECOND CONDUCTING MEMBER WHEREBY SAID SECOND CONDUCTING MEMBER IS SPACED FROM SAID FIRST CONDUCTING MEMBER, WHERBY UPON A DIRECT TARGET IMPACT OF SAID PROJECTILE, SAID CRUSHABLE MEMBER IS CRUSHED AGAINST SAID FIRST CONDUCTING MEMBER TO CAUSE SAID FIRST CONDUCTING MEMBER TO DEFORM AND CONTACT SAID SECOND CONDUCTING MEMBER TO CLOSE SAID SWITCH; AND A GRAZE ACTUATED MEANS CARRIED BY SAID SECOND CONDUCTING MEMBER COMPRISING A STEEL BALL HOUSED IN SAID SECOND CONDUCTING MEMBER AND A LEAF SPRING CONNECTED AT ONE OF ITS ENDS TO SAID SECOND CONDUCTING MEMBER AND NORMALLY RETAINING SAID STEEL BALL AGAINST MOVEMENT OUT OF SAID SECOND CONDUCTING MEMBER, SAID STEEL BALL, UPON PROJECTILE GRAZE, MOVING OUT OF SAID SECOND CONDUCTING MEMBER AGAINST THE BIAS OF SAID SPRING TO CONTACT SAID FIRST CONDUCTING MEMBER AND CLOSE SAID SWITCH.
Claim 2
Dependent Claim
209 words
A COMBINATION GRAZE AND IMPACT SWITCH FOR CLOSING A PROJECTILE ELECTRIC FIRING CIRCUIT AND INCLUDING A LAMINATED ASSEMBLY SECURED IN SAID PROJECTILE, SAID ASSEMBLY COMPRISING A CRUSHABLE MEMBER; A FIRST ELECTRICAL CONDUCTING MEMBER, A SPACING ELEMENT DISPOSED BETWEEN SAID CRUSHABLE MEMBER AND SAID FIRST CONDUCTING MEMBER WHEREBY SAID CRUSHABLE MEMBER IS SPACED FROM SAID FIRST CONDUCTING MEMBER TO FORM A AIR GAP THEREBETWEEN; A SECOND ELECTRICAL CONDUCTING MEMBER; A NONCONDUCTING MEMBER BETWEEN SAID FIRST CONDUCTING MEMBER AND SAID SECOND CONDUCTING MEMBER WHEREBY SAID SECOND CONDUCTING MEMBER IS SPACED FROM SAID FIRST CONDUCTING MEMBER, WHERBY UPON A DIRECT TARGET IMPACT OF SAID PROJECTILE, SAID CRUSHABLE MEMBER IS CRUSHED AGAINST SAID FIRST CONDUCTING MEMBER TO CAUSE SAID FIRST CONDUCTING MEMBER TO DEFORM AND CONTACT SAID SECOND CONDUCTING MEMBER TO CLOSE SAID SWITCH; AND A GRAZE ACTUATED MEANS CARRIED BY SAID SECOND CONDUCTING MEMBER COMPRISING A STEEL BALL HOUSED IN SAID SECOND CONDUCTING MEMBER AND A LEAF SPRING CONNECTED AT ONE OF ITS ENDS TO SAID SECOND CONDUCTING MEMBER AND NORMALLY RETAINING SAID STEEL BALL AGAINST MOVEMENT OUT OF SAID SECOND CONDUCTING MEMBER, SAID STEEL BALL, UPON PROJECTILE GRAZE, MOVING OUT OF SAID SECOND CONDUCTING MEMBER AGAINST THE BIAS OF SAID SPRING TO CONTACT SAID FIRST CONDUCTING MEMBER AND CLOSE SAID SWITCH.
References Cited (Backward Citations)
GB692015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |