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US3333224A Expired / Lapsed US ⏱️ 0.0 years remaining

Resistance attachment for incandescent light bulbs

Assignee: Individual
•
Filing: 1964-07-20
•
Granted: 1967-07-25
•
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 2026-11-03 10:49
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/62

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 310 words
AN ATTACHMENT FOR OPERATING A LIGHT BULB AT LESS THAN ITS RATED VOLTAGE COMPRISING A BODY FORMED OF ELECTRICALLY INSULATIVE MATERIAL, SAID BODY BEING GENERALLY DISC-LIKE IN EXTERNAL CONFIGURATION AND HAVING AN OUTER DIAMETER LESS THAN THE MINOR DIAMETER OF THE THREADS OF A STANDARD LIGHT BULB SOCKET, SAID BODY HAVING A LOWER OPENING FORMING A COMPONENT-RECEIVING CAVITY AND AN UPPER OPENING FORMING A CLEARANCE CAVITY FOR THE PROTRUDING INSULATOR OF THE BASE OF A LIGHT BULB, PRESSURE-SENSITIVE ADHESIVE MOUNTING MEANS ON SAID BODY AND ENGAGEABLE WITH THE BASE OF A LIGHT BULB FOR SECURING SAID ATTACHMENT TO SAID LIGHT BULB, A LIGHT BULB BASE-ENGAGING METAL CONTACT SECURED WITHIN SAID COMPONENT-RECEIVING CAVITY AND IN COMMUNICATION WITH SAID CLEARANCE CAVITY FOR CONTACT WITH THE CENTRAL CONTACT OF THE BASE OF A LIGHT BULB, AN ANNULARLY POSITIONED RESISTANCE ELEMENT CONTAINED ABOUT A CENTRAL PORTION OF SAID BASE-ENGAGING CONTACT WITHIN SAID COMPONENT-RECEIVING CAVITY, A FIRST CONDUCTOR ELECTRICALLY CONNECTING SAID BASE-ENGAGING CONTACT AND SAID RESISTANCE ELEMENT, A LIGHT BULB SOCKET-ENGAGING METAL CONTACT SECURED ACROSS SAID LOWER OPENING, A SECOND CONDUCTOR ELECTRICALLY CONNECTING SAID SOCKET-ENGAGING CONTACT AND SAID RESISTANCE ELEMENT, INSULATIVE BONDING MEANS SECURING SAID SOCKET-ENGAGING CONTACT AND SAID BASE-ENGAGING CONTACT INTO A SANDWICH ASSEMBLY AT THEIR CENTRAL PORTIONS, SAID RESISTANCE ELEMENT BEING CONTAINED ANNULARLY ABOUT SAID SECURED CENTRAL PORTIONS, INSULATIVE MEANS POSITIONED BETWEEN SAID SOCKET-ENGAGING CONTACT AND SAID BASE-ENGAGING CONTACT, SAID CLEARANCE CAVITY HAVING SIDE WALLS SHAPED TO PROVIDE CLEARANCE FOR THE PROTRUDING INSULATOR OF THE BASE OF A LIGHT BULB, SAID PRESSURE-SENSITIVE ADHESIVE MOUNTING MEANS BEING LOCATED IN AN ANNULAR LAYER COAXIAL WITH THE CENTRAL AXIS OF SAID ATTACHMENT AND BEING COMPLEMENTARY IN SIZE AND SHAPE TO A SURFACE OF THE BASE OF A LIGHT BULB, SAID ATTACHMENT PROVIDING AN ELECTRICAL INTERCONNECTION THROUGH SAID RESISTANCE ELEMENT BETWEEN THE CENTRAL CONTACT OF A LIGHT BULB SOCKET AND THE CENTRAL CONTACT OF A LIGHT BULB.
Claim 2
Dependent Claim 310 words
AN ATTACHMENT FOR OPERATING A LIGHT BULB AT LESS THAN ITS RATED VOLTAGE COMPRISING A BODY FORMED OF ELECTRICALLY INSULATIVE MATERIAL, SAID BODY BEING GENERALLY DISC-LIKE IN EXTERNAL CONFIGURATION AND HAVING AN OUTER DIAMETER LESS THAN THE MINOR DIAMETER OF THE THREADS OF A STANDARD LIGHT BULB SOCKET, SAID BODY HAVING A LOWER OPENING FORMING A COMPONENT-RECEIVING CAVITY AND AN UPPER OPENING FORMING A CLEARANCE CAVITY FOR THE PROTRUDING INSULATOR OF THE BASE OF A LIGHT BULB, PRESSURE-SENSITIVE ADHESIVE MOUNTING MEANS ON SAID BODY AND ENGAGEABLE WITH THE BASE OF A LIGHT BULB FOR SECURING SAID ATTACHMENT TO SAID LIGHT BULB, A LIGHT BULB BASE-ENGAGING METAL CONTACT SECURED WITHIN SAID COMPONENT-RECEIVING CAVITY AND IN COMMUNICATION WITH SAID CLEARANCE CAVITY FOR CONTACT WITH THE CENTRAL CONTACT OF THE BASE OF A LIGHT BULB, AN ANNULARLY POSITIONED RESISTANCE ELEMENT CONTAINED ABOUT A CENTRAL PORTION OF SAID BASE-ENGAGING CONTACT WITHIN SAID COMPONENT-RECEIVING CAVITY, A FIRST CONDUCTOR ELECTRICALLY CONNECTING SAID BASE-ENGAGING CONTACT AND SAID RESISTANCE ELEMENT, A LIGHT BULB SOCKET-ENGAGING METAL CONTACT SECURED ACROSS SAID LOWER OPENING, A SECOND CONDUCTOR ELECTRICALLY CONNECTING SAID SOCKET-ENGAGING CONTACT AND SAID RESISTANCE ELEMENT, INSULATIVE BONDING MEANS SECURING SAID SOCKET-ENGAGING CONTACT AND SAID BASE-ENGAGING CONTACT INTO A SANDWICH ASSEMBLY AT THEIR CENTRAL PORTIONS, SAID RESISTANCE ELEMENT BEING CONTAINED ANNULARLY ABOUT SAID SECURED CENTRAL PORTIONS, INSULATIVE MEANS POSITIONED BETWEEN SAID SOCKET-ENGAGING CONTACT AND SAID BASE-ENGAGING CONTACT, SAID CLEARANCE CAVITY HAVING SIDE WALLS SHAPED TO PROVIDE CLEARANCE FOR THE PROTRUDING INSULATOR OF THE BASE OF A LIGHT BULB, SAID PRESSURE-SENSITIVE ADHESIVE MOUNTING MEANS BEING LOCATED IN AN ANNULAR LAYER COAXIAL WITH THE CENTRAL AXIS OF SAID ATTACHMENT AND BEING COMPLEMENTARY IN SIZE AND SHAPE TO A SURFACE OF THE BASE OF A LIGHT BULB, SAID ATTACHMENT PROVIDING AN ELECTRICAL INTERCONNECTION THROUGH SAID RESISTANCE ELEMENT BETWEEN THE CENTRAL CONTACT OF A LIGHT BULB SOCKET AND THE CENTRAL CONTACT OF A LIGHT BULB.

References Cited (Backward Citations)

DE575213C Cited
GB423078A Cited
US2675452A Cited
US3142031A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-07-24 1971-01-23 1971-07-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-07-24 1975-01-23 1975-07-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-07-24 1979-01-23 1979-07-25 $7700.00 Window Closed / Lapsed

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