US3745644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for attaching solder rings to work pieces
Assignee: Carrier Corp
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Filing: 1971-07-28
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Granted: 1973-07-17
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Expires: 1991-07-28
Abstract
Abstract By the method and apparatus herein disclosed, solder rings, formed of solder material capable of taking a permanent set upon deformation, are fixed on work pieces for subsequent soldering to other work pieces. The perimeter of a solder ring, positioned at a predetermined location on a work piece, is engaged at two points spaced apart less than 180*. The solder ring is engaged by projections on forming blades or jaws moved toward a plane extending transversely of the ring. Sufficient force is applied at the points of engagement to bow a portion of the ring intermediate the points of engagement outwardly from the work piece and to draw the remainder of the ring in tight engagement about the work piece. Preferably the forming blades are each provided with a pair of projections for engaging opposite sides of the ring to bow the intermediate portions of the ring outwardly at each side thereof.
Inventors
- 👤 R Moyer
- 👤 F Karandy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:02
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49393; Y10T29/49826; Y10T29/49908; Y10T29/49925
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
236 words
A method of attaching a loosely fitting solder ring of a material capable of taking a permanent set upon deformation thereof, to a tubular work piece preliminary to soldering the work piece to another member, which includes the steps of: A. assembling the solder ring over the exterior of the work piece and positioning the solder ring at a predetermined axial location along the exterior surface of the work piece; B. engaging the solder ring along the outer circumference thereof with a pair of spaced engagement points; C. relatively moving the engagement points and the assembled solder ring and work piece toward each other in a path lying substantially in the plane of the slder ring so that said engagement points move relative to said solder ring in paths having a projection which is spaced from the center of the solder ring and work piece; D. applying sufficient pressure to the engagement points to draw and deform the portion of the solder ring lying between the engagement points closely about the exterior surface of the work piece, and to bow and deform another portion of the solder ring outwardly in the plane thereof from the Work piece, whereby the solder ring is tightly engaged with the exterior of the work piece at the desired location thereon, thereby enabling the work piece and solder ring to be transported and manipulated as an integral unit for further processing.
Claim 2
Independent Claim
236 words
A method of attaching a loosely fitting solder ring of a material capable of taking a permanent set upon deformation thereof, to a tubular work piece preliminary to soldering the work piece to another member, which includes the steps of: A. assembling the solder ring over the exterior of the work piece and positioning the solder ring at a predetermined axial location along the exterior surface of the work piece; B. engaging the solder ring along the outer circumference thereof with a pair of spaced engagement points; C. relatively moving the engagement points and the assembled solder ring and work piece toward each other in a path lying substantially in the plane of the slder ring so that said engagement points move relative to said solder ring in paths having a projection which is spaced from the center of the solder ring and work piece; D. applying sufficient pressure to the engagement points to draw and deform the portion of the solder ring lying between the engagement points closely about the exterior surface of the work piece, and to bow and deform another portion of the solder ring outwardly in the plane thereof from the Work piece, whereby the solder ring is tightly engaged with the exterior of the work piece at the desired location thereon, thereby enabling the work piece and solder ring to be transported and manipulated as an integral unit for further processing.
Claim 3
Independent Claim
327 words
A method of attaching a loosely fitting solder ring of a material capable of taking a permanent set upon deformation thereof, to a tubular work piece preliminary to soldering the work piece to another member, which includes the steps of: A. assembling the solder ring over the exterior of the work piece and positioning the solder ring at a predetermined axial location along the exterior surface of the work piece; B. engaging the solder ring with a pair of spaced engagement points which are spaced along the outer circumference thereof by an arc of less than 180*; C. relatively moving the engagement points and the assembled solder ring and work piece toward each other in a path lying substantially in the plane of the solder ring and which is substantially parallel with the diameter of said solder ring bisecting the arc formed between said engagement points so that said engagement points move relative to said solder ring in paths having a projection which is spaced from the center of the solder ring and work piece; D. supporting the portion of solder ring which lies on the side thereof opposite the arc formed between the engagement points so that said portion of the solder ring lies in contact with and is supported against the adjacent portion of the work piece; and E. applying sufficient pressure to the engagement points to draw and deform the included portion of the solder ring lying between the engagement points closely about the exterior surface of the work piece in the region between the spaced points, and to bow and deform the solder ring outwardly in the plane thereof from the work piece at a location outside the region between the spaced engagement points, whereby the solder ring is tightly engaged with the exterior of the work piece at the desired location thereon, thereby enabling the work piece and solder ring to be transported and manipulated as an integral unit for further processing.
Claim 4
Independent Claim
327 words
A method of attaching a loosely fitting solder ring of a material capable of taking a permanent set upon deformation thereof, to a tubular work piece preliminary to soldering the work piece to another member, which includes the steps of: A. assembling the solder ring over the exterior of the work piece and positioning the solder ring at a predetermined axial location along the exterior surface of the work piece; B. engaging the solder ring with a pair of spaced engagement points which are spaced along the outer circumference thereof by an arc of less than 180*; C. relatively moving the engagement points and the assembled solder ring and work piece toward each other in a path lying substantially in the plane of the solder ring and which is substantially parallel with the diameter of said solder ring bisecting the arc formed between said engagement points so that said engagement points move relative to said solder ring in paths having a projection which is spaced from the center of the solder ring and work piece; D. supporting the portion of solder ring which lies on the side thereof opposite the arc formed between the engagement points so that said portion of the solder ring lies in contact with and is supported against the adjacent portion of the work piece; and E. applying sufficient pressure to the engagement points to draw and deform the included portion of the solder ring lying between the engagement points closely about the exterior surface of the work piece in the region between the spaced points, and to bow and deform the solder ring outwardly in the plane thereof from the work piece at a location outside the region between the spaced engagement points, whereby the solder ring is tightly engaged with the exterior of the work piece at the desired location thereon, thereby enabling the work piece and solder ring to be transported and manipulated as an integral unit for further processing.
Claim 5
Dependent Claim
153 words
A method as defined in claim 2 including the steps of: A. positioning the solder ring in a slot of a guide block in registration with an aperture extending transversely through the guide block; B. assembling the solder ring with the work piece by inserting the work piece through the solder ring and through the transverse aperture in registration with the solder ring until the work piece engages a stop to thereby accurately position the solder ring at the desired location along the exterior surface of the work piece; and C. engaging the solder ring with the pair of spaced engagement points by moving a forming blade carrying said pair of spaced engagement points in a slot in said guide block lying in the plane of the solder ring at an angle of the plane of the slot used to initially position the solder ring until said engagement points engage the solder ring.
Claim 6
Dependent Claim
200 words
A method as defined in claim 2 wherein the step of supporting the solder ring against the work piece on the side thereof opposite the arc formed by said engagement points includes engaging and supporting the solder ring against the work piece with another pair of spaced engagement points which are spaced about the outer circumference of the solder ring and which lie on the opposite side of said solder ring and work piece from said first named pair of engagement points; and including the step of simultaneously moving both pairs of spaced engagement points toward the assembled solder ring and work piece on an axis substantially parallel to a diameter bisecting both of the arcs formed by said pairs of spaced engagement points on the outer circumference of the solder ring; and applying sufficient pressure to both pairs of engagemnet points so that said other pair of spaced engagement points also cause drawing and deforming of the included portion of the solder ring lying therebetween into close engagement with the work piece and assist in bowing and deforming the solder ring outwardly from the work piece at a location outside the region between both pairs of spaced engagement points.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |