US3325762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistance attachment for use with incandescent light bulbs
Assignee: Individual
•
Filing: 1964-07-20
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Granted: 1967-06-13
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Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 Frank J Rosenblatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:38
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
362 words
AN ATTACHMENT FOR OPERATING A LIGHT BULB AT LESS THAN ITS RATED VOLTAGE COMPRISING A BODY FORMED OF ELECTRICALLY INSULATIVE MATERIAL BEING GENERALLY DISC-LIKE IN EXTERNAL CONFIGURATION AND HAVING AN EXTERNAL DIAMETER LESS THAN THE MINOR DIAMETER OF THE THREADS OF A STANDARD LIGHT BULB SOCKET, A FIRST OPENING FORMED IN ONE OF THE FACES OF SAID BODY DEFINING A COMPONENT-RECEIVING CAVITY AND A SECOND OPENING FORMED IN THE OPPOSITE FACE OF SAID BODY DEFINING A CLEARANCE CAVITY TO RECEIVE THE PROTRUDING INSULATOR OF THE BASE OF A LIGHT BULB, LIGHT BULB ENGAGEMENT AND LOCATING MEANS IN SAID BODY SIZED TO ENGAGE A LIGHT BULB AT ITS BASE AND LOCATE SAID ATTACHMENT IN A PREDETERMINED ORIENTATION WITH RESPECT THERETO, A LIGHT BULB BASE-ENGAGING METAL CONTACT SECURED WITHIN SAID COMPONENT-RECEIVING CAVITY AND ACCESSIBLE THROUGH SAID CLEARANCE CAVITY AND POSITIONED FOR CONTACT WITH THE CENTRAL CONTACT OF A LIGHT BULB BASE, AN ANNULARLY POSITIONED RESISTANCE ELEMENT CONTAINED ABOUT A CENTRAL PORTION OF SAID BASE-ENGAGING CONTACT WITHIN SAID COMPONENT-RECEIVING CAVITY, A FIRST CONDUCTOR ELECTRICALLY INTERCONNECTING SAID BASE-ENGAGING CONTACT AND SAID RESISTANCE ELEMENT, A LIGHT BULB SOCKET-ENGAGING METAL CONTACT SECURED ACROSS SAID FIRST OPENING, A SECOND CONDUCTOR ELECTRICALLY INTERCONNECTING SAID SOCKET-ENGAGING CONTACT AND SAID RESISTANCE ELEMENT, INSULATIVE MEANS POSITIONED BETWEEN SAID SOCKET-ENGAGING CONTACT AND SAID BASE-ENGAGING CONTACT, BONDING MEANS SECURING AND SAID BASE-ENGAGING CONTACT AND SAID SOCKET-ENGAGING CONTACT INTO A SANDWICH ASSEMBLY AT THEIR CENTRAL PORTIONS, SAID RESISTANCE ELEMENT BEING CONTAINED ANNULARLY ABOUT THE SECURED CENTRAL PORTIONS OF SAID BASE-ENGAGING CONTACT AND SAID SOCKET-ENGAGING CONTACT, INSULATIVE BONDING MEANS WITHIN SAID COMPONENTRECEIVING CAVITY SECURING SAID BASE-ENGAGING CONTACT, SAID ANNULARLY POSITIONED RESISTANCE ELEMENT AND SAID SOCKETENGAGING CONTACT THEREIN, SAID LOCATING MEANS POSITIONING SAID ATTACHMENT WITH RESPECT TO THE BASE OF A LIGHT BULB SUCH THAT SAID BASE-ENGAGING CONTACT IS IN ELECTRICAL COMMUNICATION WITH THE CENTRAL CONTACT OF A LIGHT BULB BASE AND SAID SOCKET-ENGAGING CONTACT IS IN ELECTRICAL COMMUNICATION WITH THE CENTRAL CONTACT OF A LIGHT BULB SOCKET WHEN SAID ATTACHMENT IS INSERTED INTO A LIGHT BULB SOCKET WITH A LIGHT BULB, SAID ATTACHMENT PROVIDING AN ELECTRICAL INTERCONNECTION THROUGH SAID RESISTANCE UNIT BETWEEN THE CENTRAL CONTACT OF A LIGHT SOCKET AND THE CENTRAL CONTACT OF A LIGHT BULB.
Claim 2
Dependent Claim
362 words
AN ATTACHMENT FOR OPERATING A LIGHT BULB AT LESS THAN ITS RATED VOLTAGE COMPRISING A BODY FORMED OF ELECTRICALLY INSULATIVE MATERIAL BEING GENERALLY DISC-LIKE IN EXTERNAL CONFIGURATION AND HAVING AN EXTERNAL DIAMETER LESS THAN THE MINOR DIAMETER OF THE THREADS OF A STANDARD LIGHT BULB SOCKET, A FIRST OPENING FORMED IN ONE OF THE FACES OF SAID BODY DEFINING A COMPONENT-RECEIVING CAVITY AND A SECOND OPENING FORMED IN THE OPPOSITE FACE OF SAID BODY DEFINING A CLEARANCE CAVITY TO RECEIVE THE PROTRUDING INSULATOR OF THE BASE OF A LIGHT BULB, LIGHT BULB ENGAGEMENT AND LOCATING MEANS IN SAID BODY SIZED TO ENGAGE A LIGHT BULB AT ITS BASE AND LOCATE SAID ATTACHMENT IN A PREDETERMINED ORIENTATION WITH RESPECT THERETO, A LIGHT BULB BASE-ENGAGING METAL CONTACT SECURED WITHIN SAID COMPONENT-RECEIVING CAVITY AND ACCESSIBLE THROUGH SAID CLEARANCE CAVITY AND POSITIONED FOR CONTACT WITH THE CENTRAL CONTACT OF A LIGHT BULB BASE, AN ANNULARLY POSITIONED RESISTANCE ELEMENT CONTAINED ABOUT A CENTRAL PORTION OF SAID BASE-ENGAGING CONTACT WITHIN SAID COMPONENT-RECEIVING CAVITY, A FIRST CONDUCTOR ELECTRICALLY INTERCONNECTING SAID BASE-ENGAGING CONTACT AND SAID RESISTANCE ELEMENT, A LIGHT BULB SOCKET-ENGAGING METAL CONTACT SECURED ACROSS SAID FIRST OPENING, A SECOND CONDUCTOR ELECTRICALLY INTERCONNECTING SAID SOCKET-ENGAGING CONTACT AND SAID RESISTANCE ELEMENT, INSULATIVE MEANS POSITIONED BETWEEN SAID SOCKET-ENGAGING CONTACT AND SAID BASE-ENGAGING CONTACT, BONDING MEANS SECURING AND SAID BASE-ENGAGING CONTACT AND SAID SOCKET-ENGAGING CONTACT INTO A SANDWICH ASSEMBLY AT THEIR CENTRAL PORTIONS, SAID RESISTANCE ELEMENT BEING CONTAINED ANNULARLY ABOUT THE SECURED CENTRAL PORTIONS OF SAID BASE-ENGAGING CONTACT AND SAID SOCKET-ENGAGING CONTACT, INSULATIVE BONDING MEANS WITHIN SAID COMPONENTRECEIVING CAVITY SECURING SAID BASE-ENGAGING CONTACT, SAID ANNULARLY POSITIONED RESISTANCE ELEMENT AND SAID SOCKETENGAGING CONTACT THEREIN, SAID LOCATING MEANS POSITIONING SAID ATTACHMENT WITH RESPECT TO THE BASE OF A LIGHT BULB SUCH THAT SAID BASE-ENGAGING CONTACT IS IN ELECTRICAL COMMUNICATION WITH THE CENTRAL CONTACT OF A LIGHT BULB BASE AND SAID SOCKET-ENGAGING CONTACT IS IN ELECTRICAL COMMUNICATION WITH THE CENTRAL CONTACT OF A LIGHT BULB SOCKET WHEN SAID ATTACHMENT IS INSERTED INTO A LIGHT BULB SOCKET WITH A LIGHT BULB, SAID ATTACHMENT PROVIDING AN ELECTRICAL INTERCONNECTION THROUGH SAID RESISTANCE UNIT BETWEEN THE CENTRAL CONTACT OF A LIGHT SOCKET AND THE CENTRAL CONTACT OF A LIGHT BULB.
References Cited (Backward Citations)
DE575213C
Cited
US2675452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |