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A reusable vacuum bag apparatus for use in a compaction operation by which composite parts are formed. The apparatus includes a flexible, inflatable support structure which is secured to a reusable flexible mat vacuum bag. When inflated, the support structure maintains the vacuum bag in the orientat

A reusable vacuum bag apparatus for use in a compaction operation by which composite parts are formed. The apparatus includes a flexible, inflatable support structure which is secured to a reusable flexible mat vacuum bag. When inflated, the support structure maintains the vacuum bag in the orientation it needs to assume when placed on a forming tool associated with a compaction apparatus. The support structure is formed by a plurality of intercoupled linear and curving tubing segments which form a grid-like support structure. The support structure is shaped in accordance with the configuration and contours of the reusable vacuum bag portion, which is in turn shaped in accordance with a forming tool. The support structure can be de-inflated, which allows the vacuum bag secured thereto to be stored in a compact arrangement when not in use. The hollow tubular support structure also provides a very light support framework which is much more easily manipulated and handled by a lay-up mechanic when positioning the apparatus 10 on a forming tool.

대표청구항 ▼

A reusable vacuum bag apparatus for use in a compaction operation by which composite parts are formed. The apparatus includes a flexible, inflatable support structure which is secured to a reusable flexible mat vacuum bag. When inflated, the support structure maintains the vacuum bag in the orientat

A reusable vacuum bag apparatus for use in a compaction operation by which composite parts are formed. The apparatus includes a flexible, inflatable support structure which is secured to a reusable flexible mat vacuum bag. When inflated, the support structure maintains the vacuum bag in the orientation it needs to assume when placed on a forming tool associated with a compaction apparatus. The support structure is formed by a plurality of intercoupled linear and curving tubing segments which form a grid-like support structure. The support structure is shaped in accordance with the configuration and contours of the reusable vacuum bag portion, which is in turn shaped in accordance with a forming tool. The support structure can be de-inflated, which allows the vacuum bag secured thereto to be stored in a compact arrangement when not in use. The hollow tubular support structure also provides a very light support framework which is much more easily manipulated and handled by a lay-up mechanic when positioning the apparatus 10 on a forming tool. an a molding shrinkage rate of a material for forming said cylinder. 11. A pump unit for an ink-jet recording apparatus comprised of said piston pump according to claim 1 and a cap attached closely to an ink-jet recording head to suck ink formed by an insert molding or a multi-color molding. 12. A pump unit for an ink-jet recording apparatus according to claim 11, wherein a material for forming said cap is a rubber or an elastomer. 13. An ink-jet recording apparatus equipped with a pump unit according to claim 11. 14. An ink-jet recording apparatus according to claim 13, wherein ink is ejected by utilizing thermal energy. 15. A valve comprised of a first part having a cylindrical hole bearing at least one opening for a flow path and a second part engaged in said cylindrical hole of said first part capable of rotating freely so as to connect with said at least one opening for said flow path of said first part, and said first and second parts are formed out of materials mutually insoluble in each other by an insert molding or a two-color molding. 16. A valve according to claim 15, wherein said first part or said second part has a fastener to prevent it from slipping out of said other part. 17. A valve according to claim 15, wherein a material of said first part or said second part is an elastic material. 18. A valve according to claim 17, wherein said elastic material is a rubber or an elastomer. 19. A valve comprised of a first part having a cylindrical hole bearing at least two openings for flow paths and a second part engaged in said cylindrical hole of said first part capable of rotating freely so as to select at least one of said openings for said flow paths of said first part selectively and said first and second parts are formed out of materials mutually insoluble in each other by an insert molding or a two-color molding. 20. A valve according to claim 19, wherein said first part or said second part has a fastener along its axis to prevent it from slipping out of said other part. 21. A valve according to claim 19, wherein a material of one of said first part and said second part is an elastic material. 22. A valve according to claim 21, wherein said elastic material is a rubber or an elastomer. 23. A valve comprised of a first part having a cylindrical hole bearing at least one opening for a flow path and a second part engaged in said cylindrical hole of said first part capable of sliding freely so as to connect with said at least one opening for said flow path of said first part and said first and second parts are formed out of materials mutually insoluble in each other by an insert molding or a two-color molding. 24. A valve according to claim 23, wherein said first part or said second part has a fastener along its axis to prevent it from slipping out of said other part. 25. A valve according to claim 23, wherein said first part or said second part is formed out of an elastic material. 26. A valve according to claim 25, wherein said elastic material is a rubber or an elastomer. 27. A valve comprised of a first part having a cylindrical hole bearing at least two openings for flow paths and a second part engaged in said cylindrical hole of said first part capable of sliding freely so as to select at least one of said openings for said flow paths of said first part selectively and said first and second parts are formed of materials mutually insoluble in each other by an insert molding or a two-color molding. 28. A valve according to claim 27, wherein said first part or said second part has a fastener along its axis to prevent disintegration of said part. 29. A valve according to claim 27, wherein a material of said first part or said second part is an elastic material. 30. A valve according to claim 29, wherein said elastic material is a rubber or an elastomer. 31. Parts for an ink-jet recording apparatus, wherein said parts come into contact with ink and with other parts, and said parts are formed out of materials mutuall