US3698745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose coupling
Assignee: Weatherhead Co
•
Filing: 1971-05-03
•
Granted: 1972-10-17
•
Expires: 1991-05-03
Abstract
Abstract An inverted flare type hose coupling and its method of production, which includes a tubular eyelet providing at one end internal support for a hose end and at its other end a conical sealing seat for a flared tube. The seat portion of the eyelet is formed over and is supported by a conical ring assembled with the eyelet in a coupling body through an outer internally threaded end of the body.
Inventors
- 👤 James E Mundt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:49
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/04; F16L19/041; F16L33/00; F16L33/20; F16L33/207
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
320 words
A hose end coupling comprising a tubular body member including at one end an axially extending tubular skirt portion, an intermediate section having a central bore therethrough, and an internally threaded portion at an end opposite said one end, the minor diameter of the threads of said internally threaded portion being greater than the diameter of said central bore, an abutment surface adjacent the end of said central bore facing said internal threads and extending in a direction having a radial component, a relatively thin-walled tubular eyelet forming a first insert assembly member and including at one end a Generally cylindrical portion extending axially at least partially through the center of said skirt portion, said cylindrical eyelet portion and said skirt portion together forming a hose end receiving pocket, the cylindrical eyelet portion adapted to internally support a hose end, an end of said tubular eyelet opposite said one end defining a frustro-conical seat portion adapted to sealingly engage a flared end face of a fluid conduit, said frustro-conical seat portion being formed by an eyelet wall surface increasing in radius toward said one end a shoulder portion joining said frustro-conical seat portion and said cylindrical eyelet portion and adapted to engage said abutment surface, a relatively thick-walled annular support element forming a second insert assembly member, said annular support element having a conical shape generally corresponding to the seat portion of said tubular eyelet, said element being disposed between said shoulder portion abutment surface and said seat portion to thereby support the wall of said seat portion during engagement of the latter with the flared end face of the conduit, at least portions of the outer surface of one of said insert assembly members defining a circle closely fitting said central bore of said body member to align said tubular eyelet along the axis of said tubular body member and retain said insert assembly members in said body member.
Claim 2
Dependent Claim
320 words
A hose end coupling comprising a tubular body member including at one end an axially extending tubular skirt portion, an intermediate section having a central bore therethrough, and an internally threaded portion at an end opposite said one end, the minor diameter of the threads of said internally threaded portion being greater than the diameter of said central bore, an abutment surface adjacent the end of said central bore facing said internal threads and extending in a direction having a radial component, a relatively thin-walled tubular eyelet forming a first insert assembly member and including at one end a Generally cylindrical portion extending axially at least partially through the center of said skirt portion, said cylindrical eyelet portion and said skirt portion together forming a hose end receiving pocket, the cylindrical eyelet portion adapted to internally support a hose end, an end of said tubular eyelet opposite said one end defining a frustro-conical seat portion adapted to sealingly engage a flared end face of a fluid conduit, said frustro-conical seat portion being formed by an eyelet wall surface increasing in radius toward said one end a shoulder portion joining said frustro-conical seat portion and said cylindrical eyelet portion and adapted to engage said abutment surface, a relatively thick-walled annular support element forming a second insert assembly member, said annular support element having a conical shape generally corresponding to the seat portion of said tubular eyelet, said element being disposed between said shoulder portion abutment surface and said seat portion to thereby support the wall of said seat portion during engagement of the latter with the flared end face of the conduit, at least portions of the outer surface of one of said insert assembly members defining a circle closely fitting said central bore of said body member to align said tubular eyelet along the axis of said tubular body member and retain said insert assembly members in said body member.
Claim 3
Dependent Claim
314 words
An inverted flare type hose coupling assembly comprising a tubular body member including at a hose receiving end an axially extending tubular skirt portion, an intermediate section having a central cylindrical bore therethrough, and an internally threaded portion at an end opposite said hose receiving end, a minor diameter of the threads of said internally threaded portion being greater than the diameter of said central bore, an abutment surface at the end of said central bore facing said internal threads and extending in a direction having a radial component from said central bore, a relatively thin-walled tubular eyelet including at an inner end a generally cylindrical portion extending axially at least partially through the center of said skirt portion, said cylindrical eyelet portion and said skirt portion together forming a hose end receiving pocket, an end of a flexible hose positioned in said pocket, the cylindrical eyelet portion internally supporting the hose end, said eyelet having a second cylindrical portion press fitted into said central bore of said body member, the wall of said eyelet at an outer end of said second cylindrical portion extending in a direction at least partially radially outwards to a major diameter portion of the eyelet, said major diameter portion being smaller than the minor crest diameter of said internal threads, the wall of said eyelet extending radially inward and axially forward from said major diameter portion to the outer end of the eyelet to form a frustro-conical wall providing a seat on its exterior surface, said seat surface adapted to engage a flared end face of a fluid conduit a relatively thick-walled annular support member, said frustro-conical wall being crimped over said annular support member internally supporting said conical wall, said support member having an outer end adjacent the outer end of the eyelet and a conical shape corresponding to the desired shape of the conical eyelet wall.
Claim 4
Dependent Claim
314 words
An inverted flare type hose coupling assembly comprising a tubular body member including at a hose receiving end an axially extending tubular skirt portion, an intermediate section having a central cylindrical bore therethrough, and an internally threaded portion at an end opposite said hose receiving end, a minor diameter of the threads of said internally threaded portion being greater than the diameter of said central bore, an abutment surface at the end of said central bore facing said internal threads and extending in a direction having a radial component from said central bore, a relatively thin-walled tubular eyelet including at an inner end a generally cylindrical portion extending axially at least partially through the center of said skirt portion, said cylindrical eyelet portion and said skirt portion together forming a hose end receiving pocket, an end of a flexible hose positioned in said pocket, the cylindrical eyelet portion internally supporting the hose end, said eyelet having a second cylindrical portion press fitted into said central bore of said body member, the wall of said eyelet at an outer end of said second cylindrical portion extending in a direction at least partially radially outwards to a major diameter portion of the eyelet, said major diameter portion being smaller than the minor crest diameter of said internal threads, the wall of said eyelet extending radially inward and axially forward from said major diameter portion to the outer end of the eyelet to form a frustro-conical wall providing a seat on its exterior surface, said seat surface adapted to engage a flared end face of a fluid conduit a relatively thick-walled annular support member, said frustro-conical wall being crimped over said annular support member internally supporting said conical wall, said support member having an outer end adjacent the outer end of the eyelet and a conical shape corresponding to the desired shape of the conical eyelet wall.
Claim 5
Dependent Claim
31 words
A hose coupling as set forth in claim 2 wherein said annular support member includes a cylindrical axial projection extending into and radially supporting said second cylindrical portion of said eyelet.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |