Patent US3825392A successfully refreshed from Google Patents.
US3825392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming pipe coupling
Assignee: WS Dickey Clay Manufacturing Co
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Filing: 1972-08-14
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Granted: 1974-07-23
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Expires: 1992-08-14
Abstract
Abstract An apparatus and method for molding a pipe coupling from tubular blanks or members of suitable synthetic resin wherein the apparatus comprises an outer jacket mounted on a supporting frame and an inner mold member positioned within the outer jacket and having a plurality of sections each having an outer surface selectively movable toward and away from an inner surface of the outer jacket in response to operation of an extensible member. The outer jacket and each of the sections of the inner mold member have means for communicating a temperature controlling material into same. The molding method is to heat a tubular member, insert same into the molding apparatus and move the parts to form the member to form the coupling which is then cooled to harden same and removed from the mold. When the resin member is in elongate form or pipe a cutting blade is mounted on the supporting frame and engageable with the tubular portion at a position to sever a molded pipe coupling of a desired length from the pipe section.
Inventors
- 👤 E Ligon
- 👤 N Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:57
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/44; B29C33/48; B29C33/485; B26; B26D; B26D3/00; B26D3/16; B29C49/00; B29C49/42; B29C49/48; B29C67/00; B29C67/0014; B29L; B29L2031/00; B29L2031/24
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
303 words
An apparatus for molding a pipe coupling and comprising: a. a supporting frame; b. an outer jacket mounted on said supporting frame and having an inner surface with opposed edges; c. an inner mold member mounted on said supporting frame and having an outer surface with opposed edges and a desired shape, said inner mold member having a plurality of sections arranged in a pair of opposed pairs and movable toward and away from the inner surface of said outer jacket; d. said outer surface of said inner mold member has a plurality of annular recesses therein each adapted to receive a respective portion of the tubular pipe portion therein; e. said inner surface of said outer jacket has respective means adjacent each of the opposed edges thereof for effecting a substantially fluid tight seal when respective portions of the tubular pipe portion are moved into engagement therewith by the closing movement of said inner mold member; f. means mounted on said supporting frame and operatively connected to the sections of at least one pair of said pair of opposed pairs of sections of said inner mold member for selectively effecting opening and closing movements of said sections of said inner mold member, said closing movement being operative to effect molding of a tubular pipe portion positioned between said inner surface of said outer jacket and said outer surface of said inner mold member; g. said inner surface of said outer jacket has means communicating therewith for directing fluid under pressure into a space between said inner surface of said outer jacket and the tubular pipe portion to effect forming engagement thereof with the outer surface of said inner mold member and flow of respective portions of the tubular pipe portion into the recesses in said outer surface of said inner mold member.
Claim 2
Independent Claim
303 words
An apparatus for molding a pipe coupling and comprising: a. a supporting frame; b. an outer jacket mounted on said supporting frame and having an inner surface with opposed edges; c. an inner mold member mounted on said supporting frame and having an outer surface with opposed edges and a desired shape, said inner mold member having a plurality of sections arranged in a pair of opposed pairs and movable toward and away from the inner surface of said outer jacket; d. said outer surface of said inner mold member has a plurality of annular recesses therein each adapted to receive a respective portion of the tubular pipe portion therein; e. said inner surface of said outer jacket has respective means adjacent each of the opposed edges thereof for effecting a substantially fluid tight seal when respective portions of the tubular pipe portion are moved into engagement therewith by the closing movement of said inner mold member; f. means mounted on said supporting frame and operatively connected to the sections of at least one pair of said pair of opposed pairs of sections of said inner mold member for selectively effecting opening and closing movements of said sections of said inner mold member, said closing movement being operative to effect molding of a tubular pipe portion positioned between said inner surface of said outer jacket and said outer surface of said inner mold member; g. said inner surface of said outer jacket has means communicating therewith for directing fluid under pressure into a space between said inner surface of said outer jacket and the tubular pipe portion to effect forming engagement thereof with the outer surface of said inner mold member and flow of respective portions of the tubular pipe portion into the recesses in said outer surface of said inner mold member.
Claim 3
Dependent Claim
14 words
a slide member having an other end of said extensible means connected thereto; and
Claim 4
Dependent Claim
14 words
a slide member having an other end of said extensible means connected thereto; and
Claim 5
Independent Claim
176 words
An apparatus for molding a pipe coupling and comprising: a. a supporting frame; b. an outer jacket mounted on said supporting frame and having an inner surface with opposed edges; c. an inner mold member mounted on said supporting frame and having an outer surface with opposed edges and a desired shape, said inner mold member having a plurality of sections arranged in a pair of opposed pairs and movable toward and away from the inner surface of said outer jacket; d. means mounted on said supporting frame and operatively connected to the sections of at least one pair of said pair of opposed pairs of sections of said inner mold member for selectively effecting opening and closing movements of said sections of said inner mold member, said closing movement being operative to effect molding of a tubular pipe portion positioned between said inner surface of said outer jacket and said outer surface of said inner mold member; e. said means for effecting opening and closing movements of said sections of said inner mold member including:
Claim 6
Independent Claim
176 words
An apparatus for molding a pipe coupling and comprising: a. a supporting frame; b. an outer jacket mounted on said supporting frame and having an inner surface with opposed edges; c. an inner mold member mounted on said supporting frame and having an outer surface with opposed edges and a desired shape, said inner mold member having a plurality of sections arranged in a pair of opposed pairs and movable toward and away from the inner surface of said outer jacket; d. means mounted on said supporting frame and operatively connected to the sections of at least one pair of said pair of opposed pairs of sections of said inner mold member for selectively effecting opening and closing movements of said sections of said inner mold member, said closing movement being operative to effect molding of a tubular pipe portion positioned between said inner surface of said outer jacket and said outer surface of said inner mold member; e. said means for effecting opening and closing movements of said sections of said inner mold member including:
Claim 7
Dependent Claim
13 words
a slide member having an other end of said extensible means connected thereto;
Claim 8
Dependent Claim
13 words
a slide member having an other end of said extensible means connected thereto;
Claim 9
Dependent Claim
14 words
a slide member having an other end of said extensible means connected thereto; and
Claim 10
Dependent Claim
14 words
a slide member having an other end of said extensible means connected thereto; and
Claim 11
Dependent Claim
134 words
An apparatus for molding a pipe coupling as set forth in claim 2 wherein: a. each of said sections of said one pair of sections of said inner mold member has a pair of opposite sides intersecting the respective outer surface thereof and diverging therefrom; b. each of said sections of said other pair of sections of said inner mold member has a pair of rear surfaces each in sliding engagement with a respective one of the opposite sides of a respective one of the sections of said one pair of sections; and c. the rear surfaces of each of said sections of the other pair of sections of said inner mold member extend from the outer surface thereof and converge at the center of said respective sections of the other pair of sections.
Claim 12
Dependent Claim
27 words
guide members mounted on said supporting frame and positioned in engagement with said slide member and adapted to define a path of movement of said slide member;
Claim 13
Dependent Claim
27 words
guide members mounted on said supporting frame and positioned in engagement with said slide member and adapted to define a path of movement of said slide member;
Claim 14
Dependent Claim
152 words
guide members mounted on said supporting frame and positioned in engagement with said slide member and adapted to define a path of movement of said slide member; g. one of said first and second portions of said outer jacket is connected to said slide member and the other is connected to said guide members; and h. one of the sections of the one pair of opposed pairs of sections of said inner mold member is connected to said slide member and tHe other is connected to said guide members whereby relative movement between said slide member and said guide members effects relative movement between said first and second portions of said outer jacket and between the sections of the one of the pairs of opposed sections of said inner mold member and thereby relative movement between the sections of the other of the pairs of opposed sections of said inner mold member.
Claim 15
Dependent Claim
152 words
guide members mounted on said supporting frame and positioned in engagement with said slide member and adapted to define a path of movement of said slide member; g. one of said first and second portions of said outer jacket is connected to said slide member and the other is connected to said guide members; and h. one of the sections of the one pair of opposed pairs of sections of said inner mold member is connected to said slide member and tHe other is connected to said guide members whereby relative movement between said slide member and said guide members effects relative movement between said first and second portions of said outer jacket and between the sections of the one of the pairs of opposed sections of said inner mold member and thereby relative movement between the sections of the other of the pairs of opposed sections of said inner mold member.
Claim 16
Dependent Claim
152 words
guide members mounted on said supporting frame and positioned in engagement with said slide member and adapted to define a path of movement of said slide member; b. one of said first and second portions of said outer jacket is connected to said slide member and the other is connected to said guide members; and c. one of the sections of the one of said pairs of opposed sections of said inner mold member is connected to said slide member and the other is connected to said guide members whereby relative movement between said slide member and said guide members effects relative movement between said first and second portions of said outer jacket and between the sections of the one of the pairs of opposed sections of said inner mold member and thereby relative movement between the sections of the other of the pairs of opposed sections of said inner mold member.
Claim 17
Dependent Claim
152 words
guide members mounted on said supporting frame and positioned in engagement with said slide member and adapted to define a path of movement of said slide member; b. one of said first and second portions of said outer jacket is connected to said slide member and the other is connected to said guide members; and c. one of the sections of the one of said pairs of opposed sections of said inner mold member is connected to said slide member and the other is connected to said guide members whereby relative movement between said slide member and said guide members effects relative movement between said first and second portions of said outer jacket and between the sections of the one of the pairs of opposed sections of said inner mold member and thereby relative movement between the sections of the other of the pairs of opposed sections of said inner mold member.
Claim 18
Dependent Claim
28 words
means connecting one of the sEctions of the one pair of said inner mold member to said slide member and the other section to said guide members; and
Claim 19
Dependent Claim
28 words
means connecting one of the sEctions of the one pair of said inner mold member to said slide member and the other section to said guide members; and
Claim 20
Dependent Claim
67 words
An apparatus for molding a pipe coupling as set forth in claim 3 wherein: a. said outer jacket has wall members defining a chamber therein and surrounding said inner surface of said outer jacket; b. said outer jacket has means for communicating a cooling material into said chamber therein; and c. said sections of said inner mold member each have means for communicating a cooling material thereinto.
Claim 21
Dependent Claim
83 words
An apparatus for molding a pipe coupling as set forth in claim 2 wherein: a. said outer jacket has a first portion and a second portion; b. one of said first and second portions of said outer jacket is connected to said slide member; and c. the other of said first and second portions of said outer jacket is connected to said guide members whereby operation of said extensible means effects relative movement between said first and second portions of said outer jacket.
Claim 22
Dependent Claim
33 words
resilient means extending between and connected to the sections of the other pair of sections of said inner mold member for urging said sections of said other pair of sections toward each other.
Claim 23
Dependent Claim
33 words
resilient means extending between and connected to the sections of the other pair of sections of said inner mold member for urging said sections of said other pair of sections toward each other.
Claim 24
Independent Claim
233 words
An apparatus for molding a pipe coupling and comprising: a. a supporting frame; b. an outer jacket mounted on said supporting frame and having an inner surface with a desired shape, said outer jacket having a first portion and a second portion; c. an inner mold member mounted on said supporting frame and having an outer surface with a desired shape, said inner mold member having a plurality of sections arranged in a pair of opposed pairs and movable toward and away from the inner surface of said outer jacket; d. means mounted on said supporting frame and operatively connected to said first and second portions of said outer jacket and to at least one pair of said pairs of opposed sections of said inner mold member for selectively effecting opening and closing movements of said portions of said outer jacket and said sections of said inner mold member, said closing movement being effective to mold a pipe portion positioned between said inner surface of said outer jacket and said outer surface of said inner mold member; e. the sections of the other pair of said pairs of opposed sections of said inner mold member each have resilient means connected thereto for urging said sections toward each other; f. said means for effecting opening and closing movements of said portions of said outer jacket and said sections of said inner mold member includes:
Claim 25
Independent Claim
233 words
An apparatus for molding a pipe coupling and comprising: a. a supporting frame; b. an outer jacket mounted on said supporting frame and having an inner surface with a desired shape, said outer jacket having a first portion and a second portion; c. an inner mold member mounted on said supporting frame and having an outer surface with a desired shape, said inner mold member having a plurality of sections arranged in a pair of opposed pairs and movable toward and away from the inner surface of said outer jacket; d. means mounted on said supporting frame and operatively connected to said first and second portions of said outer jacket and to at least one pair of said pairs of opposed sections of said inner mold member for selectively effecting opening and closing movements of said portions of said outer jacket and said sections of said inner mold member, said closing movement being effective to mold a pipe portion positioned between said inner surface of said outer jacket and said outer surface of said inner mold member; e. the sections of the other pair of said pairs of opposed sections of said inner mold member each have resilient means connected thereto for urging said sections toward each other; f. said means for effecting opening and closing movements of said portions of said outer jacket and said sections of said inner mold member includes:
Claim 26
Independent Claim
327 words
An apparatus for molding a pipe coupling and comprising: a. a supporting frame; b. an outer jacket mounted on said supporting frame and having an inner surface with a desired shape, said outer jacket having a first portion and a second portion; c. an inner mold member mounted on said supporting frame and having an outer surface with a desired shape, said inner mold member having a plurality of sections arranged in a pair of opposed pairs and movable toward and away from the inner surface of said outer jacket; d. means mounted on said supporting frame and operatively connected to said first and second portions of said outer jacket and to at least one pair of said pairs of opposed sections of said inner mold member for selectively effecting opening and closing movements of said portions of said outer jacket and said sections of said inner mold member, said closing movement being effective to mold a pipe portion positioned between said inner surface of said outer jacket and said outer surface of said inner mold member; e. each of said sections of said one pair of sections of said inner mold member has a pair of opposite sides intersecting the respective outer surface thereof and diverging therefrom; f. each of said sections of the other pair of sections of said inner mold member has a pair of rear surfaces each in sliding engagement with a respective one of the opposite sides of a respective one of the sections of said one pair of sections; g. the rear surfaces of each of said sections of the other pair of sections of said inner mold member extend from the outer surface thereof and converge at the center of said respective sections of the other pair of sections; h. the sections of the other pair of said pairs of opposed sections of said inner mold member each have resilient means connected thereto for urging said sections toward each other.
Claim 27
Independent Claim
327 words
An apparatus for molding a pipe coupling and comprising: a. a supporting frame; b. an outer jacket mounted on said supporting frame and having an inner surface with a desired shape, said outer jacket having a first portion and a second portion; c. an inner mold member mounted on said supporting frame and having an outer surface with a desired shape, said inner mold member having a plurality of sections arranged in a pair of opposed pairs and movable toward and away from the inner surface of said outer jacket; d. means mounted on said supporting frame and operatively connected to said first and second portions of said outer jacket and to at least one pair of said pairs of opposed sections of said inner mold member for selectively effecting opening and closing movements of said portions of said outer jacket and said sections of said inner mold member, said closing movement being effective to mold a pipe portion positioned between said inner surface of said outer jacket and said outer surface of said inner mold member; e. each of said sections of said one pair of sections of said inner mold member has a pair of opposite sides intersecting the respective outer surface thereof and diverging therefrom; f. each of said sections of the other pair of sections of said inner mold member has a pair of rear surfaces each in sliding engagement with a respective one of the opposite sides of a respective one of the sections of said one pair of sections; g. the rear surfaces of each of said sections of the other pair of sections of said inner mold member extend from the outer surface thereof and converge at the center of said respective sections of the other pair of sections; h. the sections of the other pair of said pairs of opposed sections of said inner mold member each have resilient means connected thereto for urging said sections toward each other.
Claim 28
Dependent Claim
39 words
An apparatus for molding a pipe coupling as set forth in claim 7 wherein: a. said means for effecting opening and closing movements of said portions of said outer jacket and said sections of said inner mold member includes:
Claim 29
Independent Claim
211 words
An apparatus for molding a pipe coupling and comprising: a. an outer jacket having an inner surface with opposed edges; b. an inner mold member having an outer surface with opposed edges and a desired shape, said inner mold member having a plurality of sections arranged in a pair of opposed pairs and movable toward and away from the surface of said outer jacket; c. said Outer surface of said inner mold member has a plurality of annular recesses therein each adapted to receive a respective portion of the tubular pipe portion therein; d. said inner surface of said outer jacket has respective means adjacent each of the opposed edges thereof for effecting a substantially fluid tight seal when respective portions of the tubular pipe portion are moved into engagement therewith by the closing movement of said inner mold member; e. means operatively connected to the sections of at least one pair of said pair of opposed pairs of sections of said inner mold member for selectively effecting opening and closing movements of said sections of said inner mold member, said closing movement being operative to effect molding of a tubular pipe portion positioned between said inner surface of said outer jacket and said outer surface of said inner mold member.
Claim 30
Independent Claim
211 words
An apparatus for molding a pipe coupling and comprising: a. an outer jacket having an inner surface with opposed edges; b. an inner mold member having an outer surface with opposed edges and a desired shape, said inner mold member having a plurality of sections arranged in a pair of opposed pairs and movable toward and away from the surface of said outer jacket; c. said Outer surface of said inner mold member has a plurality of annular recesses therein each adapted to receive a respective portion of the tubular pipe portion therein; d. said inner surface of said outer jacket has respective means adjacent each of the opposed edges thereof for effecting a substantially fluid tight seal when respective portions of the tubular pipe portion are moved into engagement therewith by the closing movement of said inner mold member; e. means operatively connected to the sections of at least one pair of said pair of opposed pairs of sections of said inner mold member for selectively effecting opening and closing movements of said sections of said inner mold member, said closing movement being operative to effect molding of a tubular pipe portion positioned between said inner surface of said outer jacket and said outer surface of said inner mold 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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |