US4445956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and material for securing structure for machining
Assignee: Hexcel Corp
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Filing: 1983-02-14
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Granted: 1984-05-01
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Expires: 2003-02-14
Abstract
Abstract An improved method and material for securing a thin-edged deformable structure, such as a honeycomb core, so that the structure may be machined while it is in a generally stabilized condition. The material is a laminate which is bonded to one side of the structure to be machined. The laminate is then secured by vacuum and the structure is then machined in a desired manner. The laminate includes a first stabilizing layer formed from a mesh of fiberglass, nylon or the like and having relative large openings. The mesh is impregnated with a suitable epoxy or phenolic resin which acts as an adhesive to secure the mesh to the structure. A fabric of nylon or the like is applied over the mesh and bonded thereto. A third and final layer includes a non-porous plastic sheet which permits the laminate to adhere by suction to a vacuum chuck. After machining, the fabric and non-porous layers are removed, leaving the open mesh layer fixed to the structure to stabilize it.
Inventors
- 👤 Bob L. Freeman
- 👤 Peter W. Borris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:54
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/06; B23Q3/08; B23Q3/086; B32B3/00; B32B3/10; B32B3/12; B32B2315/00; B32B2315/08; B32B2315/085; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24355; Y10T428/24372; Y10T428/24405; Y10T428/26; Y10T428/269; Y10T428/28; Y10T428/2848; Y10T442/00; Y10T442/60; Y10T442/674
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
105 words
A laminate for securing a structure for machining comprising: an assembly adapted to be secured to one side of the structure, said assembly including a first layer of perforate material impregnated with an adhesive, said first layer adapted to be bonded by the adhesive to one side of the structure, a second layer of fabric material bonded by the adhesive to the first layer, and a third layer of non-porous material bonded to the second layer, the structure adapted to be mounted by the assembly on a vacuum chuck for machining of the structure when the assembly is on said one side of the structure.
Claim 2
Dependent Claim
105 words
A laminate for securing a structure for machining comprising: an assembly adapted to be secured to one side of the structure, said assembly including a first layer of perforate material impregnated with an adhesive, said first layer adapted to be bonded by the adhesive to one side of the structure, a second layer of fabric material bonded by the adhesive to the first layer, and a third layer of non-porous material bonded to the second layer, the structure adapted to be mounted by the assembly on a vacuum chuck for machining of the structure when the assembly is on said one side of the structure.
Claim 3
Dependent Claim
17 words
A laminate as set forth in claim 1, wherein the material of the first layer is fiberglass.
Claim 4
Dependent Claim
17 words
A laminate as set forth in claim 1, wherein the material of the first layer is nylon.
Claim 5
Dependent Claim
17 words
A laminate as set forth in claim 1, wherein the material of the second layer is nylon.
Claim 6
Dependent Claim
19 words
A laminate as set forth in claim 1, wherein the material of the third layer is a non-porous plastic.
Claim 7
Dependent Claim
15 words
A laminate as set forth in claim 5, wherein said plastic is synthetic linear polyester.
Claim 8
Dependent Claim
30 words
A laminate as set forth in claim 1, wherein said first layer has a plurality of openings therethrough to form a mesh, the second layer being separable from the mesh.
Claim 9
Dependent Claim
22 words
A laminate as set forth in claim 6, wherein the openings are square and have a dimension of 0.100-inch on a side.
Claim 10
Dependent Claim
38 words
A laminate as set forth in claim 1, wherein the second and third layers are separable from the first layer, said first layer having a strength capable of providing stability for the structure when the structure is deformable.
Claim 11
Independent Claim
116 words
A method of securing a deformable structure to a support for handling comprising: bonding a laminate to one side of the structure with the laminate having a first layer of perforate material in engagement with the one side of the structure, a second layer of fabric material bonded by adhesive to the first layer, and a third layer of non-porous material coupled to the second layer; holding the assembly of the structure and the laminate on a support to permit processing of the structure; removing the assembly from the support; and separating the second layer from the first layer while the first layer remains bonded to said one side of the structure to stabilize the latter.
Claim 12
Independent Claim
116 words
A method of securing a deformable structure to a support for handling comprising: bonding a laminate to one side of the structure with the laminate having a first layer of perforate material in engagement with the one side of the structure, a second layer of fabric material bonded by adhesive to the first layer, and a third layer of non-porous material coupled to the second layer; holding the assembly of the structure and the laminate on a support to permit processing of the structure; removing the assembly from the support; and separating the second layer from the first layer while the first layer remains bonded to said one side of the structure to stabilize the latter.
Claim 13
Dependent Claim
15 words
A method as set forth in claim 10, wherein the structure is a honeycomb core.
Claim 14
Dependent Claim
16 words
A method as set forth in claim 10, wherein said first layer is a fiberglass mesh.
Claim 15
Dependent Claim
15 words
A method as set forth in claim 10, wherein the first layer is nylon mesh.
Claim 16
Dependent Claim
17 words
A method as set forth in claim 10, wherein the third layer is a non-porous plastic material.
Claim 17
Dependent Claim
15 words
A method as set forth in claim 14, wherein said plastic is synthetic linear polyester.
Claim 18
Dependent Claim
24 words
A method as set forth in claim 10, wherein the first layer has square openings which have a dimension of 0.100-inch on a side.
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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) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |