US3196550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential transformer apparatus for inspecting glass container finishes
Assignee: OI Glass Inc
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Filing: 1963-02-18
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Granted: 1965-07-27
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Expires: 1983-02-18
Abstract
No abstract record available.
Inventors
- 👤 James H Mcmeekin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:28
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/04; B07C5/12; B07C5/122; B07C5/124
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
MEANS FOR SENSING IRREGULARITIES IN PLANE OR ARCUATE SURFACES COMPRISING THREE EQUALLY SPACED CONTACT MEMBERS ALIGNED IN A COMMON PLANE, MEANS SUPPORTING SAID MEMBERS FOR INDEPENDENT MOVEMENT IN SAID PLANE, A SERIES OF THREE TRANSFORMERS IN AXIAL REGISTRY WITH SAID CONTACT MEMBERS, ARMATURE MEANS MOVABLE AXIALLY IN EACH OF SAID TRANSFORMERS TO VARY THE INDUCTIVE OUTPUT THEREOF, THE TWO END TRANSFORMERS HAVING EQUAL OUTPUT POTENTIALS AT CORRESPONDING NORMAL ARMATURE POSITIONS AND THE INTERVENING TRANSFORMER HAVING AN OUTPUT POTENTIAL EQUAL TO THE SUM OF THE OTHER TWO AT A CORRESPONDING NORMAL ARMATURE POSITION BUT OF OPPOSITE POLARITY, WHEREBY THE NORMAL NET OUTPUT OF THE THREE TRANSFORMERS IS ZERO, EACH OF SAID ARMATURE MEANS BEING CONNECTED FOR MOVEMENT WITH ONE OF SAID CONTACT MEMBERS FOR AXIAL MOVEMENT IN ITS ASSOCIATED TRANSFORMER UPON MOVEMENT OF SAID CONTACT MEMBER IN A DIRECTION GENERALLY NORMAL TO THE SURFACE BEING SENSED TO VARY THE OUTPUT POTENTIAL OF ITS ASSOCIATED TRANSFORMER PROPORTIONATE TO THE DEGREE OF MOVEMENT OF SUCH CONTACT MEMBER, AND
Claim 2
Dependent Claim
165 words
MEANS FOR SENSING IRREGULARITIES IN PLANE OR ARCUATE SURFACES COMPRISING THREE EQUALLY SPACED CONTACT MEMBERS ALIGNED IN A COMMON PLANE, MEANS SUPPORTING SAID MEMBERS FOR INDEPENDENT MOVEMENT IN SAID PLANE, A SERIES OF THREE TRANSFORMERS IN AXIAL REGISTRY WITH SAID CONTACT MEMBERS, ARMATURE MEANS MOVABLE AXIALLY IN EACH OF SAID TRANSFORMERS TO VARY THE INDUCTIVE OUTPUT THEREOF, THE TWO END TRANSFORMERS HAVING EQUAL OUTPUT POTENTIALS AT CORRESPONDING NORMAL ARMATURE POSITIONS AND THE INTERVENING TRANSFORMER HAVING AN OUTPUT POTENTIAL EQUAL TO THE SUM OF THE OTHER TWO AT A CORRESPONDING NORMAL ARMATURE POSITION BUT OF OPPOSITE POLARITY, WHEREBY THE NORMAL NET OUTPUT OF THE THREE TRANSFORMERS IS ZERO, EACH OF SAID ARMATURE MEANS BEING CONNECTED FOR MOVEMENT WITH ONE OF SAID CONTACT MEMBERS FOR AXIAL MOVEMENT IN ITS ASSOCIATED TRANSFORMER UPON MOVEMENT OF SAID CONTACT MEMBER IN A DIRECTION GENERALLY NORMAL TO THE SURFACE BEING SENSED TO VARY THE OUTPUT POTENTIAL OF ITS ASSOCIATED TRANSFORMER PROPORTIONATE TO THE DEGREE OF MOVEMENT OF SUCH CONTACT MEMBER, AND
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |