Patent US2064383A successfully refreshed from Google Patents.
US3634752A
Expired / Lapsed
US
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Dual ignitor probe
Assignee: UNIVERSAL TESTPRODUCTS Inc
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Filing: 1968-02-29
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Granted: 1972-01-11
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Expires: 1988-02-29
Abstract
Abstract A dual-probe assembly adapted to be inserted in the access hole of an ignitor housing and having two probe elements, one of which makes electrical contact with the primary terminal of the coil and the other of which establishes a capacitive coupling with the secondary terminal of the coil.
Inventors
- 👤 Richard S Willing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:50
CPC Classifications
F; F02; F02P; F02P17/00; F02P17/12; F02P2017/006
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
A probe for electrical analysis of ignition systems which include an ignitor of the class typically comprising an ignition coil and a distributor surrounded by an electrically and magnetically shielding housing, the invention, comprising: a probe body, means for affixing said body to said ignitor housing; a primary contact, said primary contact being resiliently mounted in said body for a limited axial movement therein, said primary contact being adapted to make electrical contact with a primary terminal of said ignition coil within said ignitor; and a secondary contact, said secondary contact having a wire portion mounted in said probe body, and a laterally extending vane attached to said wire portion.
Claim 2
Dependent Claim
110 words
A probe for electrical analysis of ignition systems which include an ignitor of the class typically comprising an ignition coil and a distributor surrounded by an electrically and magnetically shielding housing, the invention, comprising: a probe body, means for affixing said body to said ignitor housing; a primary contact, said primary contact being resiliently mounted in said body for a limited axial movement therein, said primary contact being adapted to make electrical contact with a primary terminal of said ignition coil within said ignitor; and a secondary contact, said secondary contact having a wire portion mounted in said probe body, and a laterally extending vane attached to said wire portion.
Claim 3
Dependent Claim
67 words
A probe of the type described in claim 1 wherein said primary contact comprises first and second portions, said first portion being rigidly affixed within said body and providing a connector pin, said second portion being mounted in said body for limited axial movement therein, said second portion being telescopically received by said first portion within said body, and resilient means between said first and second portions.
Claim 4
Dependent Claim
46 words
A probe of the type described in claim 1 wherein said means for affixing said body to said ignitor comprises a threaded base portion adapted to be received within an access port of said ignitor housing, said threaded base being rotatable with respect to said body.
Claim 5
Dependent Claim
46 words
A probe of the type described in claim 2 wherein said means for affixing said body to said ignitor comprises a threaded base portion adapted to be received within an access port of said ignitor housing, said threaded base being rotatable with respect to said body.
Claim 6
Dependent Claim
21 words
A probe of the type described in claim 4 wherein said vane comprises a conductive element having a substantially rectangular shape.
Claim 7
Dependent Claim
22 words
A probe of The type described in claim 5 wherein said body further includes insulating means separating said primary and secondary contacts.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |