GB1170766A - Process of Encapsulating O-Rings - Google Patents

Process of Encapsulating O-Rings

Info

Publication number
GB1170766A
GB1170766A GB45883/66A GB4588366A GB1170766A GB 1170766 A GB1170766 A GB 1170766A GB 45883/66 A GB45883/66 A GB 45883/66A GB 4588366 A GB4588366 A GB 4588366A GB 1170766 A GB1170766 A GB 1170766A
Authority
GB
United Kingdom
Prior art keywords
ring
mould
wheel
disc
rings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB45883/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chesterton AW Co
Original Assignee
Chesterton AW Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chesterton AW Co filed Critical Chesterton AW Co
Publication of GB1170766A publication Critical patent/GB1170766A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/34—Moulds for undercut articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0082—Producing articles in the form of closed loops, e.g. rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
    • B29L2031/265—Packings, Gaskets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/709—Articles shaped in a closed loop, e.g. conveyor belts

Abstract

1,170,766. Making O-rings; seaming non-metallic sheet material. A. W. CHESTERTON CO. 13 Oct., 1966 [21 Oct., 1965], No. 43883/66. Headings B5A and B5K. [Also in Division F2] A plastics-covered 0-ring is made by deep drawing a circular ring of C-shaped cross-section from a thin disc of plastics material, severing the ring from the rest of the disc, inserting the O- ring within the severed ring, and finally sealing the edges of the severed ring to completely encase the 0-ring. The drawing is effected between a fixed base member 22, having a spring-biased male ring mould 24, and a movable female member 20 having an annular cavity 42 to which a heated pressure fluid can be supplied. In operation, member 20 is lowered to clamp the disc between rings 21 and 29, and rings 41 and 23 after which the disc is heated. Member 20 is then further lowered to draw the disc over the mould 24 and fluid under pressure subsequently supplied to the cavity 42 to apply the sheet tightly over the enlarged head of the mould, the pressure being sufficient to force the mould downwardly against the action of springs 34. The member 20 is finally withdrawn and the formed sheet, supported by the mould 24, removed for the subsequent severing operation. The severing is effected by drawing the sheet, whilst supported on the mould, between a pair of rotating cutting rolls 62 and 64 which engage either side of the drawn ring 15. The wheels are provided with cutting knives 63 and 65 respectively, the wheel 62 being mounted upon a fixed table 60 through a gear 67 and the wheel 64 being mounted upon a lever 61 pivotable to move the wheel into and out of engagement with ring 15. The wheel 64 is driven, in its operative position, by means of a second gear 67 which engages that of wheel 62. The severed ring is subsequently removed from the mould, the 0-ring inserted into it and the whole transferred to a sealing device. The sealing is effected by locating the sheathed 0-ring within a cavity formed between members 72, 68; 71 and 71<SP>1</SP> (see Fig. 17) and welding the overlapping edges of the ring 15 using a heated upper member having an annular pressing ring 75. The edges of the ring 15 are cut in such a way that when they are overlapped and sealed the outer sheath formed by ring 15 is smooth surfaced and perfectly round (see Figs. 18 and 19, not shown). Reference has been directed by the Comptroller to Specification 1,103,979.
GB45883/66A 1965-10-21 1966-10-13 Process of Encapsulating O-Rings Expired GB1170766A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49917965A 1965-10-21 1965-10-21

Publications (1)

Publication Number Publication Date
GB1170766A true GB1170766A (en) 1969-11-19

Family

ID=23984163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45883/66A Expired GB1170766A (en) 1965-10-21 1966-10-13 Process of Encapsulating O-Rings

Country Status (2)

Country Link
DE (1) DE1629339A1 (en)
GB (1) GB1170766A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52108476U (en) * 1976-02-16 1977-08-18
GB2157810A (en) * 1984-04-19 1985-10-30 David Auld Valves Limited Fluid control valve
GB2172347A (en) * 1985-03-12 1986-09-17 Gen Connector Corp Sealing rings
GB2261266A (en) * 1991-11-05 1993-05-12 Beldam Crossley Limited Packing
GB2264986A (en) * 1992-03-07 1993-09-15 Dowty Seals Ltd Ring seal
CN113580500A (en) * 2021-08-02 2021-11-02 苏州弗莱依格密封科技有限公司 Rubber seal ring die and forming method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52108476U (en) * 1976-02-16 1977-08-18
JPS5939239Y2 (en) * 1976-02-16 1984-11-01 日本バルカ−工業株式会社 Tetrafluoroethylene resin coated rubber gasket
GB2157810A (en) * 1984-04-19 1985-10-30 David Auld Valves Limited Fluid control valve
GB2172347A (en) * 1985-03-12 1986-09-17 Gen Connector Corp Sealing rings
GB2261266A (en) * 1991-11-05 1993-05-12 Beldam Crossley Limited Packing
GB2264986A (en) * 1992-03-07 1993-09-15 Dowty Seals Ltd Ring seal
GB2264986B (en) * 1992-03-07 1996-02-28 Dowty Seals Ltd Ring seal
CN113580500A (en) * 2021-08-02 2021-11-02 苏州弗莱依格密封科技有限公司 Rubber seal ring die and forming method thereof

Also Published As

Publication number Publication date
DE1629339A1 (en) 1971-03-18

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