Patent US705433A successfully refreshed from Google Patents.
Patent US4582239A successfully refreshed from Google Patents.
US4582239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic welding tools
Assignee: MECASONIC BP N 218 ZI VILLE-LA-GRAND 74104 ANNEMASSE CEDEX
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Filing: 1984-02-23
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Granted: 1986-04-15
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Expires: 2004-02-23
Abstract
Abstract A compound sonotrode for an ultrasonic welding tool includes a carrier block or adaptor mounted on an ultrasonic machine, and secondary sonotrodes or concentrators fixed to the carrier block by pins tuned to the resonance frequency of the assembly, so as not to disturb the vibratory mode of operation of the compound sonotrode.
Inventors
- 👤 Jean-Pierre Scotto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:21
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/10; B23K20/106
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
183 words
A compound sonotrode assembly for use as an ultrasonic welding tool, said assembly comprising: an ultrasonic generator having an operating frequency; a carrier block fixed at one end thereof to said generator to receive vibrations therefrom, said carrier block having a length between said one end and an opposite end equal to a half wavelength at said operating frequency; plural sonotrodes fixed to said opposite end of said carrier block to receive therefrom vibrations, each said sonotrode having a length equal to a half wavelength at said operating frequency; and fixing means for rigidly fixing said sonotrodes to said carrier block without interfering with the transmission of vibrations from said carrier block to said sonotrodes, said fixing means comprising plural pins fixing respective said sonotrodes to said carrier block, each said pin having a first portion rigidly fixing a respective said sonotrode to said carrier block and a second portion extending freely vibratably from said first portion, said second portion having a length equal to a half wavelength at said operating frequency and thereby being tuned to the resonance frequency of said assembly.
Claim 2
Dependent Claim
183 words
A compound sonotrode assembly for use as an ultrasonic welding tool, said assembly comprising: an ultrasonic generator having an operating frequency; a carrier block fixed at one end thereof to said generator to receive vibrations therefrom, said carrier block having a length between said one end and an opposite end equal to a half wavelength at said operating frequency; plural sonotrodes fixed to said opposite end of said carrier block to receive therefrom vibrations, each said sonotrode having a length equal to a half wavelength at said operating frequency; and fixing means for rigidly fixing said sonotrodes to said carrier block without interfering with the transmission of vibrations from said carrier block to said sonotrodes, said fixing means comprising plural pins fixing respective said sonotrodes to said carrier block, each said pin having a first portion rigidly fixing a respective said sonotrode to said carrier block and a second portion extending freely vibratably from said first portion, said second portion having a length equal to a half wavelength at said operating frequency and thereby being tuned to the resonance frequency of said assembly.
Claim 3
Dependent Claim
116 words
An assembly as claimed in claim 1, wherein said carrier block has therein plural stepped bores, each said bore including a larger bore portion opening at said one end of said carrier block and a smaller bore portion opening at said opposite end of said carrier block, said larger and smaller bore portions defining a step positioned adjacent said opposite end of said carrier block, said first portion of each said pin extending through said smaller bore portion of a respective said bore and being threaded into a respective said sonotrode, and said second portion of each said pin abutting a respective said step and extending therefrom through said larger bore portion of said respective bore.
Claim 4
Dependent Claim
149 words
A compound sonotrode assembly for use as an ultrasonic welding tool, said assembly comprising: an ultrasonic generator having an operating frequency; a carrier block fixed at one end thereof to said generator to receive vibrations therefrom, said carrier block having a length between said one end and an opposite end equal to a half wavelength at said operating frequency, said carrier block having formed therein plural internal housings opening at said opposite end; plural sonotrodes positioned within respective said internal housings, each said sonotrode including a first pin portion fixed to said carrier block at an inner end of a respective said internal housing and a second concentrator portion extending freely vibratably from said first pin portion through said respective internal housing, said second concentrator portion having a length equal to a half wavelength at said operating frequency and thereby being tuned to the resonance frequency of said assembly.
Claim 5
Dependent Claim
149 words
A compound sonotrode assembly for use as an ultrasonic welding tool, said assembly comprising: an ultrasonic generator having an operating frequency; a carrier block fixed at one end thereof to said generator to receive vibrations therefrom, said carrier block having a length between said one end and an opposite end equal to a half wavelength at said operating frequency, said carrier block having formed therein plural internal housings opening at said opposite end; plural sonotrodes positioned within respective said internal housings, each said sonotrode including a first pin portion fixed to said carrier block at an inner end of a respective said internal housing and a second concentrator portion extending freely vibratably from said first pin portion through said respective internal housing, said second concentrator portion having a length equal to a half wavelength at said operating frequency and thereby being tuned to the resonance frequency of said assembly.
References Cited (Backward Citations)
US3212313A
Cited
US3378429A
Cited
US3419447A
Cited
US3780926A
Cited
US3821048A
Cited
FR2224992A5
Cited
DE3032241A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |