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US3325762A Expired / Lapsed US ⏱️ 0.0 years remaining

Resistance attachment for use with incandescent light bulbs

Assignee: Individual
•
Filing: 1964-07-20
•
Granted: 1967-06-13
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Expires: 1984-07-20
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Abstract

No abstract record available.

Inventors

  • 👤 Frank J Rosenblatt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 09:34
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

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