US3149319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bowling foul indicator
Assignee: Ripley Industries Inc
•
Filing: 1961-05-26
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Granted: 1964-09-15
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Expires: 1981-05-26
Abstract
No abstract record available.
Inventors
- 👤 Fred T Messmer
- 👤 Walter S Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:49
CPC Classifications
A; A63; A63D; A63D1/00; A63D1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A BOWLING FOUL INDICATOR FOR ACTUATION BY INTERRUPTION OF A LIGHT BEAM PROJECTED ACROSS A BOWLING ALLEY ADJACENT THE FOUL LINE FOR A TIME INTERVAL GREATER THAN THAT REQUIRED FOR THE PASSAGE OF A BALL THROUGH THE BEAM, COMPRISING A UNITARY DEVICE HAVING A FIRST CIRCUIT HAVING TERMINALS FOR CONNECTION TO A SOURCE OF ALTERNATING CURRENT COMPRISING CONTACTS OF A NORMALLY OPEN-WHEN-COLD THERMALLY ACTUATED TIME DELAY SWITCH IN A SERIES CIRCUIT WITH A RECTIFIER, A LIGHT SENSITIVE CELL CONDUCTIVE IN RESPONSE TO RADIANT ENERGY OF A FOUL LINE LIGHT BEAM, AND A RELAY COIL, THE LATTER HAVING A CAPACITANCE IN SHUNT THEREWITH, RELAY COIL ACTUATED CONTACTS CLOSED ONLY ON COIL ENERGIZATION IN SHUNT WITH SAID DELAY SWITCH CONTACTS; A SECOND CIRCUIT COMPRISING RELAY ACTUATED CONTACTS OPEN ONLY ON RELAY COIL EN-
Claim 2
Dependent Claim
131 words
A BOWLING FOUL INDICATOR FOR ACTUATION BY INTERRUPTION OF A LIGHT BEAM PROJECTED ACROSS A BOWLING ALLEY ADJACENT THE FOUL LINE FOR A TIME INTERVAL GREATER THAN THAT REQUIRED FOR THE PASSAGE OF A BALL THROUGH THE BEAM, COMPRISING A UNITARY DEVICE HAVING A FIRST CIRCUIT HAVING TERMINALS FOR CONNECTION TO A SOURCE OF ALTERNATING CURRENT COMPRISING CONTACTS OF A NORMALLY OPEN-WHEN-COLD THERMALLY ACTUATED TIME DELAY SWITCH IN A SERIES CIRCUIT WITH A RECTIFIER, A LIGHT SENSITIVE CELL CONDUCTIVE IN RESPONSE TO RADIANT ENERGY OF A FOUL LINE LIGHT BEAM, AND A RELAY COIL, THE LATTER HAVING A CAPACITANCE IN SHUNT THEREWITH, RELAY COIL ACTUATED CONTACTS CLOSED ONLY ON COIL ENERGIZATION IN SHUNT WITH SAID DELAY SWITCH CONTACTS; A SECOND CIRCUIT COMPRISING RELAY ACTUATED CONTACTS OPEN ONLY ON RELAY COIL EN-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |