US3785910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic seaming apparatus including feed means
Assignee: Branson Ultrasonics Corp
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Filing: 1972-05-01
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Granted: 1974-01-15
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Expires: 1992-05-01
Abstract
Abstract An ultrasonic seaming apparatus comprising a driven anvil wheel and an oppositely disposed resonating horn forming a seaming station through which flexible sheet material to be seamed is fed includes a driven workpiece feed wheel which is resiliently urged toward contact with the anvil wheel for assisting in feeding the seamed portion of the workpiece away from the seaming station. This arrangement minimizes the occurrence of puckering in sheer workpiece material. Additional workpiece feed means in the form of driven rollers are mounted distanced from the stated workpiece feed wheel.
Inventors
- 👤 F Parry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:25
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C65/00; B29C65/02; B29C65/08; B29C65/083; B29C65/086; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/81; B29C66/816; B29C66/8161; B29C66/82; B29C66/822; B29C66/8221; B29C66/8226; B29C66/82263; B29C66/83413; B29C66/84; B29C66/845; B29C66/13; B29C66/135; B29C66/72; B29C66/729; B29C66/8223
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
192 words
In an ultrasonic seaming apparatus for seaming relatively sheer workpieces the combination comprising: a support; means securing an ultrasonic converter unit to said support, said converter unit including transducing means for converting applied electrical high frequency energy to mechanical vibration; a horn adapted to be resonant at a predetermined frequency coupled to said converter unit for receiving said mechanical vibration and applying such vibration to a workpiece in contact with the frontal surface of said horn; a rotatably mounted anvil wheel disposed opposite said frontal surface for forming with said frontal surface a seaming station adapted to accept a sheet-like relatively shear workpiece which is fed between and in contact with said anvil wheel and said frontal surface; a workpiece feed wheel disposed for engaging the workpiece after the workpiece has been fed through the seaming station; means mounting and resiliently urging said workpiece feed wheel toward contact with said anvil wheel for engaging the workpiece and feeding the workpiece away from said frontal surface to prevent puckering of the workpiece, and drive means coupled to said anvil wheel and said workpiece feed wheel for driving said wheels at correlated peripheral speeds.
Claim 2
Dependent Claim
192 words
In an ultrasonic seaming apparatus for seaming relatively sheer workpieces the combination comprising: a support; means securing an ultrasonic converter unit to said support, said converter unit including transducing means for converting applied electrical high frequency energy to mechanical vibration; a horn adapted to be resonant at a predetermined frequency coupled to said converter unit for receiving said mechanical vibration and applying such vibration to a workpiece in contact with the frontal surface of said horn; a rotatably mounted anvil wheel disposed opposite said frontal surface for forming with said frontal surface a seaming station adapted to accept a sheet-like relatively shear workpiece which is fed between and in contact with said anvil wheel and said frontal surface; a workpiece feed wheel disposed for engaging the workpiece after the workpiece has been fed through the seaming station; means mounting and resiliently urging said workpiece feed wheel toward contact with said anvil wheel for engaging the workpiece and feeding the workpiece away from said frontal surface to prevent puckering of the workpiece, and drive means coupled to said anvil wheel and said workpiece feed wheel for driving said wheels at correlated peripheral speeds.
Claim 3
Dependent Claim
223 words
In an ultrasonic seaming apparatus for seaming relatively sheer workpieces the combination comprising: a support; means securing an ultrasonic converter unit to said support, said converter unit including transducing means for converting applied electrical high frequency energy to mechanical vibration; a horn adapted to be resonant at a predetermined frequency coupled to said converter unit for receiving said mechanical vibration and applying such vibration to a workpiece in contact with the frontal surface of said horn; a rotatably mounted anvil wheel disposed opposite said frontal surface for forming with said frontal surface a seaming station adapted to accept a sheet-like relatively sheer workpiece which is feed between and in contact with said anvil wheel and said frontal surface; a workpiece feed wheel disposed for engaging the workpiece after the workpiece has been fed through the seaming station; means mounting and resiliently urging said workpiece feed wheel toward contact with said anvil wheel for engaging the workpiece and feeding the workpiece away from said frontal surface to prevent puckering of the workpiece; drive means coupled to said anvil wheel and said workpiece feed wheel for driving said wheels at correlated peripheral speeds, and means coupled to said workpiece feed wheel for lifting said feed wheel from said anvil wheel and retaining said feed wheel in lifted position away from contact with said anvil wheel.
Claim 4
Dependent Claim
223 words
In an ultrasonic seaming apparatus for seaming relatively sheer workpieces the combination comprising: a support; means securing an ultrasonic converter unit to said support, said converter unit including transducing means for converting applied electrical high frequency energy to mechanical vibration; a horn adapted to be resonant at a predetermined frequency coupled to said converter unit for receiving said mechanical vibration and applying such vibration to a workpiece in contact with the frontal surface of said horn; a rotatably mounted anvil wheel disposed opposite said frontal surface for forming with said frontal surface a seaming station adapted to accept a sheet-like relatively sheer workpiece which is feed between and in contact with said anvil wheel and said frontal surface; a workpiece feed wheel disposed for engaging the workpiece after the workpiece has been fed through the seaming station; means mounting and resiliently urging said workpiece feed wheel toward contact with said anvil wheel for engaging the workpiece and feeding the workpiece away from said frontal surface to prevent puckering of the workpiece; drive means coupled to said anvil wheel and said workpiece feed wheel for driving said wheels at correlated peripheral speeds, and means coupled to said workpiece feed wheel for lifting said feed wheel from said anvil wheel and retaining said feed wheel in lifted position away from contact with said anvil wheel.
Claim 5
Dependent Claim
53 words
In an ultrasonic seaming apparatus for seaming relatively sheer workpieces as set forth in claim 2, said means for lifting said feed wheel including a pivotally secured lever having a slot which is provided with an undercut portion for engagement by a pin, such engagement retaining said feed wheel in its lifted position.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |