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US4674673A
Expired / Lapsed
US
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Fluid distributor, and a method of affixing extensions to the fluid distributor
Assignee: Danfoss Chatleff Inc
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Filing: 1985-08-01
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Granted: 1987-06-23
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Expires: 2005-08-01
Abstract
Abstract A fluid handling body and a method of attaching extension tubes to the fluid handling body which effectively seals the tubes to the body in a simple manufacturing operation, reducing the number of manufacturing operations required while minimizing the possibilities of damage to the tubes or undesirably restricting the fluid flow path in the body or tubes. The method hereof is particularly advantageous where several tubes are to be attached to the body to produce a precise, leak-free component. The body includes a fluid flow passageway extending into one end and a saucer-like cavity in the other end. A plurality of bores extend through the body between the cavity and passageway. With the tubes received in the bores, a paste is applied in the cavity. The outer periphery of the body is heated, melting the paste in a single heating operation and effecting flow of the paste in the cavity into circumscribing relation about the tubes.
Inventors
- 👤 James R. Parrish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:58
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/14; B23K1/18
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
112 words
A method for attaching fluid-handling extensions to a fluid-handling body comprising the steps of: providing a fluid-handling body having a fluid flow passageway at one end, a cavity at the other end, and a plurality of bores extending between said other end and the passageway, the bores being in communication with the cavity; placing an elongated, tubular, fluid-handling extension in each of the respective bores extending outwardly from the body, the extensions each being in adjoining relation to the cavity; applying a paste in the cavity; heating the body to effect flow of the paste in the cavity into circumscribing relation about the extensions to sealingly connect the extensions to the body.
Claim 2
Independent Claim
112 words
A method for attaching fluid-handling extensions to a fluid-handling body comprising the steps of: providing a fluid-handling body having a fluid flow passageway at one end, a cavity at the other end, and a plurality of bores extending between said other end and the passageway, the bores being in communication with the cavity; placing an elongated, tubular, fluid-handling extension in each of the respective bores extending outwardly from the body, the extensions each being in adjoining relation to the cavity; applying a paste in the cavity; heating the body to effect flow of the paste in the cavity into circumscribing relation about the extensions to sealingly connect the extensions to the body.
Claim 3
Dependent Claim
17 words
The method according to claim 1, wherein said heating occurs along the outer periphery of the body.
Claim 4
Dependent Claim
35 words
The method according to claim 1, wherein said paste includes a flux component and a filler component, said heating step first causing the flux to flow and the filler to follow the flux flow path.
Claim 5
Dependent Claim
36 words
The method according to claim 1, said cavity being generally circular and centrAIly domed, said paste being applied generally in the center of the cavity, the heat melting the paste causing outward flow of the paste.
Claim 6
Dependent Claim
87 words
A fluid distributor comprising: an elongated body having a passageway extending inwardly from one end of the body, a generally open cavity at the other end of the body, the cavity having a retaining flange along the outer perimeter, a plurality of bores extending between the other end and the passageway, the cavity extending to the bores to provide communication therewith; a plurality of tubular extensions operatively received in the respective bores; and paste means received in said cavity for sealing the extensions in the respective bores.
Claim 7
Dependent Claim
87 words
A fluid distributor comprising: an elongated body having a passageway extending inwardly from one end of the body, a generally open cavity at the other end of the body, the cavity having a retaining flange along the outer perimeter, a plurality of bores extending between the other end and the passageway, the cavity extending to the bores to provide communication therewith; a plurality of tubular extensions operatively received in the respective bores; and paste means received in said cavity for sealing the extensions in the respective bores.
Claim 8
Dependent Claim
30 words
The distributor according to claim 5, wherein each bore presents a first section adjacent the cavity dimentioned to be slightly greater than the outside dimension of the respective tubular extension.
Claim 9
Dependent Claim
26 words
The distributor according to claim 5, wherein each bore presents a second section adjacent the passageway dimensioned for preventing insertion of the respective tubular extensions therein.
Claim 10
Dependent Claim
18 words
The distributor according to claim 5, said bores being oriented to extend obliquely radially outwardly from said passageway.
Claim 11
Dependent Claim
28 words
The distributor according to claim 5, said cavity comprising a generally saucer-like indentation in the body surface, said flange operable to retain said paste generally within said cavity.
Claim 12
Dependent Claim
28 words
The distributor according to claim 9, said cavity defining surface being generally circular in plan and generally convex in cross-section to define a dome in a central location.
Claim 13
Dependent Claim
16 words
The distributor according to claim 9, said bores extending inwardly from said cavity adjacent said flange.
Claim 14
Dependent Claim
31 words
The distributor according to claim 9, said paste means being operable to melt in response to heat to flow as a liquid in the cavity into circumscribing relation about said extension.
Claim 15
Dependent Claim
78 words
A fluid distributur comprising: an elongated fluid-handling body; a saucer-like cavity in one end of the body having a retainer flange along the outer perimeter; structure defining one or more bores extending through said one end into said body, each bore having at least a portion disposed within said cavity inside of said retainer flange; a fluid-handling extension received in each bore; and paste means received in said cavity and extending in circumscribing, sealing, relation around each extension.
Claim 16
Dependent Claim
78 words
A fluid distributur comprising: an elongated fluid-handling body; a saucer-like cavity in one end of the body having a retainer flange along the outer perimeter; structure defining one or more bores extending through said one end into said body, each bore having at least a portion disposed within said cavity inside of said retainer flange; a fluid-handling extension received in each bore; and paste means received in said cavity and extending in circumscribing, sealing, relation around each extension.
Claim 17
Dependent Claim
24 words
The distributor according to claim 13, including structure defining an elongated passageway in said other end of the body in communication with the bores.
Claim 18
Dependent Claim
35 words
The distributor according to claim 13, said cavity being centrally domed for urging paste means applied in the center of the cavity to flow outwardly toward the retainer flange when the paste means is heated.
Claim 19
Dependent Claim
27 words
The distributor according to claim 13, each bore-defining structure being cylindrical with the circular cross-section of the end adjacent the cavity being intersected by the retainer flange.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |