US3303296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attenuator with improved housing structure
Assignee: McGraw Edison Co
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Filing: 1964-12-08
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Granted: 1967-02-07
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Expires: 1984-12-08
Abstract
No abstract record available.
Inventors
- 👤 Chester F Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:18
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/02; H01H19/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
AN ATTENUATOR OF A CYLINDRICAL CONSTRUCTION COMPRISING AN ASSEMBLY OF A FRONT PANEL MEMBER, AN INTERMEDIATE CONTACT PANEL MEMBER AND A REAR TERMINAL BOARD, INTERVENING TUBULAR CASINGS RESPECTIVELY BETWEEN SAID PANEL MEMBERS AND BETWEEN SAID CONTACT PANEL MEMBER AND SAID TERMINAL BOARD, SAID CASINGS HAVING INTERLOCKING GROOVE AND TONGUE ENGAGEMENT WITH SAID PANEL MEMBERS AND TERMINAL BOARD TO LOCATE SAID PANEL MEMBERS AND TERMINAL BOARD INTO AN ALIGNED RELATIONSHIP, SAID FRONT PANEL MEMBER HAVING A CENTRAL BEARING, A ROTOR IN THE CHAMBER BETWEEN SAID TWO PANEL MEMBERS HAVING A SHAFT JOURNALED IN SAID BEARING, SAID PANEL MEMBER HAVING A SERIES OF ELECTRICAL CONTACTS MOUNTED THEREON AND SAID ROTOR HAVING WIPER CONTACTS THEREON FOR SELECTIVELY ENGAGING SAID ELECTRICAL CONTACTS AS SAID ROTOR IS TURNED, A GROUP OF RESISTORS IN THE CHAMBER BETWEEN SAID CONTACT PANEL MEMBER AND SAID TERMINAL BOARD HAVING TERMINAL WIRES CONNECTED TO RESPECTIVE CONTACTS OF SAID CONTACT PANEL, LEAD WIRES CONNECTING SAID RESISTORS TO TERMINALS OF SAID TERMINAL BOARD, AND A SURROUNDING CYLINDRICAL CASE FOR HOLDING SAID ASSEMBLY INTO A UNITARY STRUCTURE.
Claim 2
Dependent Claim
174 words
AN ATTENUATOR OF A CYLINDRICAL CONSTRUCTION COMPRISING AN ASSEMBLY OF A FRONT PANEL MEMBER, AN INTERMEDIATE CONTACT PANEL MEMBER AND A REAR TERMINAL BOARD, INTERVENING TUBULAR CASINGS RESPECTIVELY BETWEEN SAID PANEL MEMBERS AND BETWEEN SAID CONTACT PANEL MEMBER AND SAID TERMINAL BOARD, SAID CASINGS HAVING INTERLOCKING GROOVE AND TONGUE ENGAGEMENT WITH SAID PANEL MEMBERS AND TERMINAL BOARD TO LOCATE SAID PANEL MEMBERS AND TERMINAL BOARD INTO AN ALIGNED RELATIONSHIP, SAID FRONT PANEL MEMBER HAVING A CENTRAL BEARING, A ROTOR IN THE CHAMBER BETWEEN SAID TWO PANEL MEMBERS HAVING A SHAFT JOURNALED IN SAID BEARING, SAID PANEL MEMBER HAVING A SERIES OF ELECTRICAL CONTACTS MOUNTED THEREON AND SAID ROTOR HAVING WIPER CONTACTS THEREON FOR SELECTIVELY ENGAGING SAID ELECTRICAL CONTACTS AS SAID ROTOR IS TURNED, A GROUP OF RESISTORS IN THE CHAMBER BETWEEN SAID CONTACT PANEL MEMBER AND SAID TERMINAL BOARD HAVING TERMINAL WIRES CONNECTED TO RESPECTIVE CONTACTS OF SAID CONTACT PANEL, LEAD WIRES CONNECTING SAID RESISTORS TO TERMINALS OF SAID TERMINAL BOARD, AND A SURROUNDING CYLINDRICAL CASE FOR HOLDING SAID ASSEMBLY INTO A UNITARY STRUCTURE.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |