US3425027A - Plug-in panel lamp - Google Patents

Plug-in panel lamp Download PDF

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Publication number
US3425027A
US3425027A US650803A US3425027DA US3425027A US 3425027 A US3425027 A US 3425027A US 650803 A US650803 A US 650803A US 3425027D A US3425027D A US 3425027DA US 3425027 A US3425027 A US 3425027A
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US
United States
Prior art keywords
housing
bulb
sleeve
lamp
leads
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US650803A
Inventor
Edward C Uberbacher
James S Lott Jr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
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International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of US3425027A publication Critical patent/US3425027A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/09—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for baseless lamp bulb

Definitions

  • the present invention relates to the assembly of electrical components and more particularly to the assembly of lamps that can be plugged into panels or the like.
  • ancillary parts not only add to the cost of the lamp but in addition decrease reliability of the lamp since they themselves may fail and they require the attaching of the bulb or its leads to contacts or terminals thereby int-roducing the possibility of damaging the bulbs or the leads during manufacture.
  • a new panel lamp which is electrically and mechanically reliable, yet is simple and inexpensive to fabricate.
  • the front end of a bulb extends from an opening at one end of a housing While the leads for the bulb extend through holes in the other end or base of the housing and are bent around the peripheral edge of the housing so they are against the sides of the housing.
  • a sleeve is then shrink-fitted to the housing and the bulb so as to retain the bulb in the housing and the leads in position between the housing and the sleeve.
  • This lamp can therefore be plugged in by inserting pins through the holes in the base of the housing so that the pins are forced up against the leads.
  • the lamp consists of only three parts, the bulb, the housing and the sleeve, and there is no need for the usual glueing or mechanical retention schemes to hold the bulb within the housing.
  • a bulb 10 having filament 12 with leads 14 which pass through the glass enclosure 7 of the bulb 10, is mounted in a cavity of a cylindrical ice nylon housing 16 with the front end of the bulb 10 protruding from the open end of the housing 16 and the back end of the bulb 10 positioned against the closed end of the housing 16.
  • the leads 14 for the bulb 10 extend from the back of the bulb through openings 18 in the closed end or base 20 of the housing 16 and are bent around the base end of the housing so that their tips 14a are positioned axially against the side wall of the housing 16.
  • the sleeve 22 is long enough to overlie a portion of the exposed end of the bulb 10 and the tips 14a of the leads. Therefore, when the sleeve 22 is shrink-fitted, it tenaciously grabs the bulb at the open end of the housing so the bulb is retained within the housing and also holds the tips 14a between the sleeve 22 and the housing 16 in the desired position.
  • a suitable material for the tubing forming sleeve is a. heat shrinkable polyvinyldinefluoride which is bought in an oversized diameter and placed around the housing 16 and the bulb 10 as previously described. Then the sleeve is heated by a hot air blower or a low temperature oven until the sleeve shrinks and becomes fitted to the housing and the bulb are placed within a plastic sleeve 22 assembly.
  • a liquid expandable plastic tubing may be used as the material of the sleeve 22 in place of the heat shrinkable plastic. If such a liquid expandable plastic is used, the sleeve is bought in its desired final dimensions, wetted so that it expands to fit on the bulb 10 and housing 16 and then is allowed to dry after it has been placed on the bulb 10 and housing 16 so that it shrinks back to its initial dimensions and grasps the bulb and the leads as described previously.
  • the lamp may be inserted on pins such as pins 24 by forcing the pins through the openings 18 for the leads.
  • the openings 18 are smaller in diameter than the pins 24 so as to force the leads 14 against the side walls of the openings and thereby obtain a good electrical contact between the pins 24 and the leads 14.
  • Nylon was chosen as the material of the housing because it offered lubrication for the pins and presented the proper feel when the pins were inserted through the housing. However other suitable materials can be used if desired.
  • a lamp assembly having a light bulb projecting from one end of a housing with contacts at its other end for making electrical connections to the light bulb, the improvement which comprises:
  • a sleeve which is positioned around the housing so that it overlies the bulb at the one end of the housing :and the tips at the other end of the housing andis shrink-fitted to said housing so as to clamp the tips between the sleeve and the housing and the bulb in the housing.

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  • Fastening Of Light Sources Or Lamp Holders (AREA)

Description

Jan. 28, 1969 E. c. UBERBACHER ET AL. PLUG-IN PANEL LAMP Filed July 5, 1967 INVENTORS- C. UBERBACHER S. LOTT JR.
BY w ATTORNEY EDWARD JAMES United States Patent 4 Claims ABSTRACT OF THE DISCLOSURE This specification describes a lamp with a bulb which with its leads is held in position in a housing by a sleeve that surrounds the housing and is shrink-fitted to grasp the bulb and the leads.
Background of the invention The present invention relates to the assembly of electrical components and more particularly to the assembly of lamps that can be plugged into panels or the like.
The most unreliable portion of a plug-in lamp is usually the light bulb itself and when the light bulb fails the whole lamp is generally thrown away. Therefore, it is desirable to minimize the cost and number of ancillary parts needed to provide the plugging in capability. These ancillary parts not only add to the cost of the lamp but in addition decrease reliability of the lamp since they themselves may fail and they require the attaching of the bulb or its leads to contacts or terminals thereby int-roducing the possibility of damaging the bulbs or the leads during manufacture.
Therefore it is an object of the present invention to provide a new lamp.
It is another object of the present invention to provide new means for mounting small lamps.
It is still another object of the invention to provide means for plugging lamps into panels.
Summary -In accordance with the present invention a new panel lamp is provided which is electrically and mechanically reliable, yet is simple and inexpensive to fabricate. In this lamp, the front end of a bulb extends from an opening at one end of a housing While the leads for the bulb extend through holes in the other end or base of the housing and are bent around the peripheral edge of the housing so they are against the sides of the housing. A sleeve is then shrink-fitted to the housing and the bulb so as to retain the bulb in the housing and the leads in position between the housing and the sleeve. This lamp can therefore be plugged in by inserting pins through the holes in the base of the housing so that the pins are forced up against the leads. Furthermore, the lamp consists of only three parts, the bulb, the housing and the sleeve, and there is no need for the usual glueing or mechanical retention schemes to hold the bulb within the housing.
Description of the drawing The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of the preferred embodiment of the invention as illustrated in the accompanying drawing which is a perspective of a lamp that is broken away to show its construction.
Description of the preferred embodiment Referring to the drawing, a bulb 10, having filament 12 with leads 14 which pass through the glass enclosure 7 of the bulb 10, is mounted in a cavity of a cylindrical ice nylon housing 16 with the front end of the bulb 10 protruding from the open end of the housing 16 and the back end of the bulb 10 positioned against the closed end of the housing 16. The leads 14 for the bulb 10 extend from the back of the bulb through openings 18 in the closed end or base 20 of the housing 16 and are bent around the base end of the housing so that their tips 14a are positioned axially against the side wall of the housing 16. With the bulb 10 so mounted within the housing 16, the housing and the bulb are placed within a plastic sleeve 22 which is then shrink-fitted to the housing 16 and the bulb 10. The sleeve 22 is long enough to overlie a portion of the exposed end of the bulb 10 and the tips 14a of the leads. Therefore, when the sleeve 22 is shrink-fitted, it tenaciously grabs the bulb at the open end of the housing so the bulb is retained within the housing and also holds the tips 14a between the sleeve 22 and the housing 16 in the desired position.
A suitable material for the tubing forming sleeve is a. heat shrinkable polyvinyldinefluoride which is bought in an oversized diameter and placed around the housing 16 and the bulb 10 as previously described. Then the sleeve is heated by a hot air blower or a low temperature oven until the sleeve shrinks and becomes fitted to the housing and the bulb are placed within a plastic sleeve 22 assembly.
A liquid expandable plastic tubing may be used as the material of the sleeve 22 in place of the heat shrinkable plastic. If such a liquid expandable plastic is used, the sleeve is bought in its desired final dimensions, wetted so that it expands to fit on the bulb 10 and housing 16 and then is allowed to dry after it has been placed on the bulb 10 and housing 16 so that it shrinks back to its initial dimensions and grasps the bulb and the leads as described previously.
Once assembled, the lamp may be inserted on pins such as pins 24 by forcing the pins through the openings 18 for the leads. Preferably the openings 18 are smaller in diameter than the pins 24 so as to force the leads 14 against the side walls of the openings and thereby obtain a good electrical contact between the pins 24 and the leads 14. Nylon was chosen as the material of the housing because it offered lubrication for the pins and presented the proper feel when the pins were inserted through the housing. However other suitable materials can be used if desired.
While the invention has been particularly shown and described with reference to the preferred embodiment thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
What is claimed is:
1. In a lamp assembly having a light bulb projecting from one end of a housing with contacts at its other end for making electrical connections to the light bulb, the improvement which comprises:
leads for the light bulb that pass through apertures in said other end and have tips extending along the outside of the housing; and
a sleeve which is positioned around the housing so that it overlies the bulb at the one end of the housing :and the tips at the other end of the housing andis shrink-fitted to said housing so as to clamp the tips between the sleeve and the housing and the bulb in the housing.
2. The lamp of claim 1 wherein said sleeve is a heat shrinkable material.
3. The lamp of claim 1 wherein said sleeve is a liquid "expandable material.
4. The lamp of claim 1 wherein said apertures are receptacles for electrical probes that provide excitation to the bulb.
References Cited UNITED STATES PATENTS Capel 339-103 X 5/1967 Booker 174-84 5/1961 Williams 340--38l FOREIGN PATENTS 1/1957 France.
RICHARD E. MOORE, Primary Examiner.
US. Cl. X.R.
US650803A 1967-07-03 1967-07-03 Plug-in panel lamp Expired - Lifetime US3425027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65080367A 1967-07-03 1967-07-03

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US3425027A true US3425027A (en) 1969-01-28

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3548243A (en) * 1967-06-26 1970-12-15 Dino Magherini Electric light bulb and terminal cap assembly
US3555342A (en) * 1969-02-11 1971-01-12 Westinghouse Electric Corp Single-ended incandescent projection lamp having dual series-connected filaments and an integral gripping cap
US3591793A (en) * 1968-12-23 1971-07-06 Jack D Mckim Panel light assembly
US4568854A (en) * 1983-10-27 1986-02-04 Gte Products Corporation Tungsten halogen lamp with heat-dissipating base
US5464354A (en) * 1994-02-01 1995-11-07 Akman; Alp T. Parallel and series plugs and wiring segments for ballon display
US5989067A (en) * 1998-01-30 1999-11-23 Lightolier Halogen lamp pin shroud
US20080192767A1 (en) * 2007-02-08 2008-08-14 Howe William H Method of transmitting a high-priority message in a lighting control system
US20090251923A1 (en) * 2008-04-08 2009-10-08 Jing Jing Yu Water-resistant and replaceable led lamps
US20100068926A1 (en) * 2008-09-12 2010-03-18 Christopher George Edward Nightingale Base Tile
US20100073963A1 (en) * 2008-04-08 2010-03-25 Jing Jing Yu Water Resistant and Replaceable LED Lamps for Light Strings
US20100109560A1 (en) * 2008-11-04 2010-05-06 Jing Jing Yu Capacitive Full-Wave Circuit for LED Light Strings
US20110051471A1 (en) * 2009-08-26 2011-03-03 Long Chen Compact inverter plug for led light strings
US8388213B2 (en) 2006-02-09 2013-03-05 1 Energy Solutions, Inc. Substantially inseparable LED lamp assembly
US8823270B2 (en) 2005-02-14 2014-09-02 1 Energy Solutions, Inc. Interchangeable LED bulbs
US20180233854A1 (en) * 2017-02-10 2018-08-16 Japan Aviation Electronics Industry, Limited Connector

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1286514A (en) * 1918-03-02 1918-12-03 Charles Bobe Incandescent electric lamp.
US2380811A (en) * 1943-06-07 1945-07-31 Gen Electric Sealed enclosbure and method of sealing same
FR1137307A (en) * 1954-05-20 1957-05-27 Philips Nv Incandescent lamp
US2863132A (en) * 1944-10-28 1958-12-02 Amp Inc Electrical connector with insulated ferrule
US2984813A (en) * 1960-07-14 1961-05-16 Frankel Associates Inc Lamp socket electrical connection
US2985874A (en) * 1958-11-14 1961-05-23 Transistor Electronics Corp Self-contained panel signal and control
US3104924A (en) * 1959-01-12 1963-09-24 Noma Corp Lamp connector
US3320355A (en) * 1965-09-07 1967-05-16 Aylwin R Booker Heat shrinkable connector for electrical wire

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1286514A (en) * 1918-03-02 1918-12-03 Charles Bobe Incandescent electric lamp.
US2380811A (en) * 1943-06-07 1945-07-31 Gen Electric Sealed enclosbure and method of sealing same
US2863132A (en) * 1944-10-28 1958-12-02 Amp Inc Electrical connector with insulated ferrule
FR1137307A (en) * 1954-05-20 1957-05-27 Philips Nv Incandescent lamp
US2985874A (en) * 1958-11-14 1961-05-23 Transistor Electronics Corp Self-contained panel signal and control
US3104924A (en) * 1959-01-12 1963-09-24 Noma Corp Lamp connector
US2984813A (en) * 1960-07-14 1961-05-16 Frankel Associates Inc Lamp socket electrical connection
US3320355A (en) * 1965-09-07 1967-05-16 Aylwin R Booker Heat shrinkable connector for electrical wire

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3548243A (en) * 1967-06-26 1970-12-15 Dino Magherini Electric light bulb and terminal cap assembly
US3591793A (en) * 1968-12-23 1971-07-06 Jack D Mckim Panel light assembly
US3555342A (en) * 1969-02-11 1971-01-12 Westinghouse Electric Corp Single-ended incandescent projection lamp having dual series-connected filaments and an integral gripping cap
US4568854A (en) * 1983-10-27 1986-02-04 Gte Products Corporation Tungsten halogen lamp with heat-dissipating base
US5464354A (en) * 1994-02-01 1995-11-07 Akman; Alp T. Parallel and series plugs and wiring segments for ballon display
US5989067A (en) * 1998-01-30 1999-11-23 Lightolier Halogen lamp pin shroud
US8823270B2 (en) 2005-02-14 2014-09-02 1 Energy Solutions, Inc. Interchangeable LED bulbs
US8388213B2 (en) 2006-02-09 2013-03-05 1 Energy Solutions, Inc. Substantially inseparable LED lamp assembly
US7787485B2 (en) 2007-02-08 2010-08-31 Lutron Electronics Co., Ltd. Method of transmitting a high-priority message in a lighting control system
US20080192767A1 (en) * 2007-02-08 2008-08-14 Howe William H Method of transmitting a high-priority message in a lighting control system
US7883261B2 (en) * 2008-04-08 2011-02-08 1 Energy Solutions, Inc. Water-resistant and replaceable LED lamps
US8376606B2 (en) 2008-04-08 2013-02-19 1 Energy Solutions, Inc. Water resistant and replaceable LED lamps for light strings
US20100073963A1 (en) * 2008-04-08 2010-03-25 Jing Jing Yu Water Resistant and Replaceable LED Lamps for Light Strings
US20090251923A1 (en) * 2008-04-08 2009-10-08 Jing Jing Yu Water-resistant and replaceable led lamps
US20100068926A1 (en) * 2008-09-12 2010-03-18 Christopher George Edward Nightingale Base Tile
US8033857B2 (en) * 2008-09-12 2011-10-11 Dragon Energy Pte. Ltd. Base tile
US8314564B2 (en) 2008-11-04 2012-11-20 1 Energy Solutions, Inc. Capacitive full-wave circuit for LED light strings
US20100109560A1 (en) * 2008-11-04 2010-05-06 Jing Jing Yu Capacitive Full-Wave Circuit for LED Light Strings
US8723432B2 (en) 2008-11-04 2014-05-13 1 Energy Solutions, Inc. Capacitive full-wave circuit for LED light strings
US9955538B2 (en) 2008-11-04 2018-04-24 1 Energy Solutions, Inc. Capacitive full-wave circuit for LED light strings
US20110051471A1 (en) * 2009-08-26 2011-03-03 Long Chen Compact inverter plug for led light strings
US8836224B2 (en) 2009-08-26 2014-09-16 1 Energy Solutions, Inc. Compact converter plug for LED light strings
US9226351B2 (en) 2009-08-26 2015-12-29 1 Energy Solutions, Inc. Compact converter plug for LED light strings
US20180233854A1 (en) * 2017-02-10 2018-08-16 Japan Aviation Electronics Industry, Limited Connector
US10199770B2 (en) * 2017-02-10 2019-02-05 Japan Aviation Electronics Industry, Limited Connector

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