Patent US3784235A successfully refreshed from Google Patents.
US3784235A
Expired / Lapsed
US
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Tubular adhesive joint with snap lock
Assignee: United States Department of the Navy
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Filing: 1971-10-08
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Granted: 1974-01-08
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Expires: 1991-10-08
Abstract
Abstract A pipe coupling including male and female attachment members connected to a pair of tubular sections which are to be coupled. The female attachment member includes a circumferential groove formed interiorly therein while the male attachment member includes a reduced diameter portion whose outer diameter is smaller than the inner diameter of the female attachment member and which has an outwardly extending lip formed at the edge thereof which will interfere with the female attachment member on assembly. Adhesive is deposited on the outer surface of the reduced diameter portion and on the inner surface of the female member and upon assembly, the male member is inserted into the female member until the lip snaps into the groove whereupon both a mechanical and adhesive connection is attained.
Inventors
- 👤 H Kessler
- 👤 H Peritt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:40
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/56; B29C65/58; B29C65/48; B29C65/50; B29C65/5057; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/70; B29C66/74; B29C66/742; F; F16; F16L; F16L13/00; F16L13/10; F16L13/103; F16L37/00; F16L37/08; F16L37/084; B29C65/4805; B29C65/483; B29C65/52; B29C66/72; B29C66/721; B29K; B29K2105/00; B29K2105/06; B29K2305/00; Y; Y10; Y10S; Y10S285/00; Y10S285/915; Y10S285/921
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
200 words
Apparatus for coupling a first tubular section to a second tubular section comprising: a female tubular attachment member having one end connectable to said first tubular section and at least two circumferential grooves formed interiorly therein inwardly of the other end; a male tubular attachment member, receivable within said female attachment member, having one end connectable to said secone tubular section and a reduced diameter end portion having at least two radially outwardly-extending, circumferential lips receivable within said grooves, said lips of outer diameter larger than the inner diameter of said female attachment member; an O-ring positioned adjacent to one of said lips; a first coating of adhesive on the interior surface of said female attachment member outward of said grooves; and a second coating of adhesive on the exterior surface of said reduced diameter end portion, said second coating extending inwardly of said lips whereby upon coupling insertion of said male attachment member into said female attachment member said circumferential lips distend said female member and force said first adhesive coating into said grooves, said second adhesive coating remaining undisturbed until contact with the inner surface of said female member with coupling engagement of said lips and said grooves.
Claim 2
Dependent Claim
200 words
Apparatus for coupling a first tubular section to a second tubular section comprising: a female tubular attachment member having one end connectable to said first tubular section and at least two circumferential grooves formed interiorly therein inwardly of the other end; a male tubular attachment member, receivable within said female attachment member, having one end connectable to said secone tubular section and a reduced diameter end portion having at least two radially outwardly-extending, circumferential lips receivable within said grooves, said lips of outer diameter larger than the inner diameter of said female attachment member; an O-ring positioned adjacent to one of said lips; a first coating of adhesive on the interior surface of said female attachment member outward of said grooves; and a second coating of adhesive on the exterior surface of said reduced diameter end portion, said second coating extending inwardly of said lips whereby upon coupling insertion of said male attachment member into said female attachment member said circumferential lips distend said female member and force said first adhesive coating into said grooves, said second adhesive coating remaining undisturbed until contact with the inner surface of said female member with coupling engagement of said lips and said grooves.
Claim 3
Dependent Claim
201 words
Apparatus for coupling a first tubular section to a second tubular section comprising: A female tubular attachment member having one end connectable to said first tubular section and a circumferential groove formed interiorly therein inwardly of the other end; a male tubular attachment member, receivable within said female attachment member, having one end connectable to said second tubular section and a reduced diameter portion integrally formed at the other end; a radially outwardly-extending, circumferential lip formed on said reduced diameter portion having a shape substantially conforming to said groove, the outer diameter of said lip being larger than the inner diameter of said female attachment member; a first coating of adhesive on the interior surface of said female attachment member outward of said groove; a second coating of adhesive on the exterior surface of said reduced diameter portion, said second coating extending inwardly of said lip, whereby upon coupling insertion of said male attachment member into said female attachment member said circumferential lip distends said female member and forces said first adhesive coating into said groove, said second adhesive coating remaining undisturbed until contact with the inner surface of said female member with coupling engagement of said lip and said groove.
Claim 4
Dependent Claim
201 words
Apparatus for coupling a first tubular section to a second tubular section comprising: A female tubular attachment member having one end connectable to said first tubular section and a circumferential groove formed interiorly therein inwardly of the other end; a male tubular attachment member, receivable within said female attachment member, having one end connectable to said second tubular section and a reduced diameter portion integrally formed at the other end; a radially outwardly-extending, circumferential lip formed on said reduced diameter portion having a shape substantially conforming to said groove, the outer diameter of said lip being larger than the inner diameter of said female attachment member; a first coating of adhesive on the interior surface of said female attachment member outward of said groove; a second coating of adhesive on the exterior surface of said reduced diameter portion, said second coating extending inwardly of said lip, whereby upon coupling insertion of said male attachment member into said female attachment member said circumferential lip distends said female member and forces said first adhesive coating into said groove, said second adhesive coating remaining undisturbed until contact with the inner surface of said female member with coupling engagement of said lip and said groove.
Claim 5
Dependent Claim
16 words
Coupling apparatus as defined in claim 2 wherein said reduced diameter portion extends beyond said lip.
Claim 6
Dependent Claim
22 words
Coupling apparatus as defined in claim 3 further including an O-ring positioned within a groove formed in said reduced diameter end portion.
Claim 7
Dependent Claim
22 words
Coupling apparatus as defined in claim 1 further including an O-ring positioned in a groove formed in said reduced diameter end portion.
Claim 8
Dependent Claim
27 words
Coupling apparatus as defined in claim 5 wherein: said reduced diameter end portion has an outer diameter smaller than the inner diameter of the female attachment member.
Claim 9
Dependent Claim
27 words
Coupling apparatus as defined in claim 5 wherein: said reduced diameter end portion has an outer diameter largeR than the inner diameter of the female attachment member.
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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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |