# US 7,745,999 B2 · Lamp which is closed on two sides > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,745,999 B2 - Document ID: US7745999B2 - Status: Granted - Kind: B2 - Application number: 11/804,415 - Filed: 2007-05-19 - Published: 2007-09-27 - Granted: 2010-06-29 - Earliest claimed: 2003-06-05 - Assignees: Osram Gesellschaft Mit Beschraenkter Haftung - Inventors: Jurgen Graf; Andreas Hohlfeld; Michael Hulsemann; Anton Schogl; Karen Twesten - Web page: https://patentgrep.com/patent/US7745999B2 ## CPC - H01J 5/50: Means forming part of the tube or lamps for the purpose of providing electrical connection to it - H01J 5/52: directly applied to or forming part of the vessel - H01J 5/54: supported by a separate part, e.g. base - H01J 61/34: Double-wall vessels or containers - H01J 61/368: {Pinched seals or analogous seals} - H01K 1/42: Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp - H01J: ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS (spark-gaps H01T; electric arc lamps H05B31/00; particle accelerators H05H) - H01K: ELECTRIC INCANDESCENT LAMPS (details, apparatus or processes for manufacture applicable to both discharge devices and incandescent lamps H01J; light sources using a combination of incandescent and other types of light generation H01J61/96, H05B35/00) ## Abstract The elongate bulb (1) of the lamp, which defines a longitudinal axis (A), is closed at opposite ends by sealing parts (6; 32), with in each case one cap being fitted at one end, the cap having an electrical contact element (13; 25) which is connected in an electrically conductive manner to a supply conductor (15; 21) leading to a luminous means, the contact element being accommodated in a tubular extension (11; 22) of the sealing part; the contact element (13; 25) has an attachment part (14; 24) which is directed inward toward the lamp interior and is equipped with at least two barbs (20; 26) which are in contact with the tubular extension (11; 21). ## Claims ### Claim 1 A lamp which is closed on two sides and has an elongate bulb, which is closed off in a vacuum-tight manner, defines a longitudinal axis and is closed at opposite ends by sealing parts, with in each case one cap being fitted at one end, the cap having an electrical contact element which is connected in an electrically conductive manner to a supply conductor leading to a luminous means, the contact element being accommodated in a tubular extension of the sealing part, wherein an adjustment part comprises: a base part connected to a first outwardly protruding centering part and a second outwardly protruding centering part, wherein: the first outwardly protruding centering part provides a spring action and at least a first portion of the first outwardly protruding centering part contacts the supply conductor and at least a second portion of the first outwardly protruding centering part contacts an inner surface of the tubular extension; and the second outwardly protruding centering part comprises a first centering element, wherein the first centering element is angled off from the base part and at least a portion of the first centering element contacts the supply conductor. ### Claim 2 (depends on 1) The lamp as claimed in claim 1, wherein the first outwardly protruding centering part, further comprises a V-shaped or a W-shaped configuration. ### Claim 3 (depends on 2) The lamp as claimed in claim 2, wherein the first outwardly protruding centering part further comprises a free limb, wherein an end of the free limb comprises a forked configuration. ### Claim 4 (depends on 1) The lamp as claimed in claim 1, wherein the second outwardly protruding centering part further comprises a second centering element angled off from the base part and at least a portion of the second centering element contacts the supply conductor. ### Claim 5 (depends on 4) The lamp as claimed in claim 4, wherein the first centering element and the second centering element are at a distance from one another which corresponds to at least double the diameter of the contact element. ### Claim 6 (depends on 1) The lamp as claimed in claim 1, wherein the base part further comprises two struts which are connected via a yoke. ### Claim 7 (depends on 1) The lamp as claimed in claim 1, wherein the second outwardly protruding centering part further comprises, a clasp connected to the first centering element and the contact element. ### Claim 8 (depends on 1) The lamp as claimed in claim 1, wherein the first centering element is in the form of a wall angled off from the base part. ### Claim 9 (depends on 1) The lamp as claimed in claim 1, wherein the adjustment part comprises a spring sheet material. ### Claim 10 (depends on 1) The lamp as claimed in claim 1, wherein the base part lies substantially in one plane. ### Claim 11 (depends on 1) The lamp as claimed in claim 1, wherein the second portion of the first centering part is embedded into the tubular extension. ### Claim 12 (depends on 1) The lamp as claimed in claim 1, wherein the inner surface of the tubular extension comprises a substantially smooth surface. ### Claim 13 (depends on 1) The lamp as claimed in claim 1, wherein at least a portion of the second centering part contacts an inner surface of the tubular extension. ### Claim 14 (depends on 4) The lamp as claimed in claim 4, wherein the second centering element is in the form a wall angled off from the base part. ### Claim 15 (depends on 6) The lamp as claimed in claim 6, wherein the first centering part is connected to the yoke. ### Claim 16 (depends on 15) The lamp as claimed in claim 15, wherein the second outwardly protruding centering part further comprises a second centering element angled off from the base part and at least a portion of the second centering element contacts the supply conductor and the second outwardly protruding centering part is connected to the two struts. ### Claim 17 An adjustment part for a lamp with an elongate bulb and an electrical contact element connected in an electrically conductive manner to a supply conductor leading to a luminous means, wherein the adjustment part comprises: a base part comprising two struts which are connected via a yoke, the base part oriented between at least a portion of a first outwardly protruding centering part and at least a portion of a second outwardly protruding centering part; the first outwardly protruding centering part providing a spring action and connected to the yoke, the first centering part comprising: a V-shaped or W-shaped configuration; and a free limb, wherein an end of the free limb is configured to bear against the supply conductor and at least a portion of the first outwardly protruding centering part is configure to contact an inner surface of the elongate bulb; and the second outwardly protruding centering part connected to the two struts, the second outwardly protruding centering part comprising a first centering element in the form of a wall angled off from the base part and at least a portion of the first centering element is configured to contact the supply conductor. ### Claim 18 (depends on 17) The adjustment part as claimed in claim 17, wherein the second outwardly protruding centering part further comprises a second centering element angled off from the base part and at least a portion of the second centering element contacts the supply conductor. ### Claim 19 (depends on 18) The adjustment part as claimed in claim 18, wherein the second centering element is in the form of a wall angled off from the base part. ### Claim 20 (depends on 19) The adjustment part as claimed in claim 19, wherein at least a portion of the second centering element is configured to contact an inner surface of the elongate bulb. ### Claim 21 (depends on 20) The adjustment part as claimed in claim 20, wherein the first centering element and the second centering element are at a distance from one another which corresponds to at least double the diameter of the contact element. ### Claim 22 (depends on 17) The adjustment part as claimed in claim 17, wherein the second outwardly protruding centering part further comprises a clasp connected to the first centering element, wherein the clasp is configured to connect with the contact element. ### Claim 23 (depends on 17) The adjustment part as claimed in claim 17, wherein the base part lies substantially in one plane. ### Claim 24 (depends on 17) The adjustment part as claimed in claim 17, wherein the adjustment part comprises a spring sheet material.