Patent US3796121A successfully refreshed from Google Patents.
US3796121A
Expired / Lapsed
US
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Method of and apparatus for locating sheets of open-celled reticular material
Assignee: Short Brothers PLC
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Filing: 1971-12-02
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Granted: 1974-03-12
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Expires: 1991-12-02
Abstract
Abstract An apparatus for constructing a composite structure including a sheet of open celled reticular material, comprising a jig including a base and a plurality of lateral rows of projecting members each row of which is restrained against movement relative to the base in the lateral direction but is individually capable of a degree of movement in the longitudinal direction so as to enable a sheet with non-uniform or irregular cell pitch dimensions to be located on the base and a piercing assembly for alignment with the cells of the material for piercing a sheet of thermoplastic adhesive covering the ends of the cells of the material, for piercing the adhesive substantially in the center of each cell.
Inventors
- 👤 J Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:43
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04B2001/742; E04B2001/748; E04B2001/8414; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1304; Y10T83/00; Y10T83/748; Y10T83/869; Y10T83/8745; Y10T83/8746; Y10T83/929; Y10T83/9314
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
117 words
An apparatus for constructing a composite structure including a sheet of open celled reticular material, comprising a jig including a base and a plurality of lateral rows of projecting members each row of which is restrained against movement relative to the base in the lateral direction but is individually capable of a degree of movement in the longitudinal direction so as to enable a sheet with non-uniform or irregular cell pitch dimensions to be located on the base and a piercing assembly for alignment with the cells of the material for piercing a sheet of thermoplastic adhesive covering the ends of the cells of the material, for piercing the adhesive substantially in the center of each cell.
Claim 2
Independent Claim
117 words
An apparatus for constructing a composite structure including a sheet of open celled reticular material, comprising a jig including a base and a plurality of lateral rows of projecting members each row of which is restrained against movement relative to the base in the lateral direction but is individually capable of a degree of movement in the longitudinal direction so as to enable a sheet with non-uniform or irregular cell pitch dimensions to be located on the base and a piercing assembly for alignment with the cells of the material for piercing a sheet of thermoplastic adhesive covering the ends of the cells of the material, for piercing the adhesive substantially in the center of each cell.
Claim 3
Dependent Claim
41 words
An apparatus according to claim 1 wherein the base has a plurality of parallel longitudinal slots and wherein the projecting members are positioned along straight lines extending in the longitudinal direction so that the projecting members exteNd through the longitudinal slots.
Claim 4
Dependent Claim
31 words
An apparatus according to claim 2 wherein at least some of the projecting members of each row have associated therewith locating lugs which are a sliding fit within the associated slots.
Claim 5
Dependent Claim
38 words
An apparatus according to claim 2 wherein the base is provided with a lateral row of fixed projections extending therefrom, each fixed projection comprising a location for a corresponding cell of the sheet of open celled reticular material.
Claim 6
Dependent Claim
26 words
An apparatus according to claim 1 wherein the base has a pair of parallel longitudinal guides, the rows of projecting members being restrained between the guides.
Claim 7
Dependent Claim
20 words
An apparatus according to claim 5 wherein the projecting members are positioned along straight lines extending in the longitudinal direction.
Claim 8
Dependent Claim
22 words
An apparatus according to claim 1 wherein each row of projecting members comprises a corresponding bar from which the projecting members project.
Claim 9
Dependent Claim
111 words
An apparatus according to claim 1 wherein the piercing assembly includes a movable piercing head carrying a plurality of piercing members arranged on the piercing head, the jig being mounted on the piercing assembly for stepped movement relatively thereto to any one of a number of positions in which the cells of the material are aligned with the piercing head, the piercing head being movable, in any one of the positions, into and out of an operative disposition in which the piercing members each enter a corresponding cell of the material substantially in the center of the cell to pierce a sheet of thermoplastic adhesive covering the ends of the cells.
Claim 10
Dependent Claim
42 words
An apparatus according to claim 8 wherein the jig is held in any one of the number of positions by releasable detent means which engages between adjacent rows of projecting members to align the cells of the material and the piercing head.
Claim 11
Dependent Claim
29 words
An apparatus according to claim 9 wherein the piercing head is mounted on a pair of parallel guides for sliding movement relatively thereto towards and away from the jig.
Claim 12
Dependent Claim
104 words
An apparatus according to claim 1 wherein the piercing assembly includes a movable piercing head carrying a plurality of piercing members arranged on the piercing head, the piercing assembly being movable relatively to the jig to any one of a number of positions in which the piercing head is aligned with the cells of the material and in which the piercing head is movable into and out of an operative disposition in which the piercing members each enter a corresponding cell of the material substantially in the center of the cell to pierce a sheet of thermoplastic adhesive covering the ends of the cells.
Claim 13
Dependent Claim
54 words
An apparatus according to claim 11 wherein the rows of projecting members each include a corresponding pair of locating holes and the piercing assembly includes a pair of guide posts having lugs for location in the holes of a row of projecting members to align the piercing head with the cells of the material.
Claim 14
Dependent Claim
56 words
An apparatus according to claim 12 wherein the piercing head is slidable on the guide posts and is movable away from a datum position with respect to the posts against the action of a spring, the datum position of the piercing head, when the guide posts are located in the holes, being out of operative disposition.
References Cited (Backward Citations)
US2355454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |