US5839847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded article with captured fasteners
Assignee: McDonnell Douglas Corp
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Filing: 1997-02-21
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Granted: 1998-11-24
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Expires: 2017-02-21
Abstract
Abstract A pressure-molded article having integral attachment points is achieved by providing, during the molding process, a fastener having a base surface portion, a side surface portion, and an internal passage defining an air path from the base surface portion to the side surface portion. The fastener's base surface portion is positioned on a molding surface of a pressure-molding tool such that the passage is placed in fluid communication with a hole in the molding surface. A formable material, such as a sheet of thermoplastic material heated to a formable state, is positioned adjacent to both the molding surface and the fastener. The sheet is pressure-formed onto the molding surface while preferably evacuating the hole in the molding surface, such that air disposed between the sheet and the molding surface adjacent to the side surface portion of the fastener is drawn into the passage and down into the hole, with the sheet partially flowing into the passage to mechanically capture the fastener within the sheet.
Inventors
- 👤 Jayant D. Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:58
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/12; B29C37/00; B29C37/0078; B29C37/0082; B29C70/00; B29C70/68; B29C70/72; B29C2791/00; B29C2791/004; B29C2791/006; B29C51/10; Y; Y10; Y10T; Y10T403/00; Y10T403/47
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
96 words
An article molded from a formable material, the article comprising: a molded body having a first molded surface; and a fastener within the molded body, the fastener including a base surface portion, a side surface portion, and an internal passage connecting the base surface portion to the side surface portion, wherein a first section of the passage adjacent to the side surface portion is filled with the formable material to mechanically capture the fastener within the molded body, wherein the side surface portion includes a first recess, and the first section opens into the first recess.
Claim 2
Dependent Claim
96 words
An article molded from a formable material, the article comprising: a molded body having a first molded surface; and a fastener within the molded body, the fastener including a base surface portion, a side surface portion, and an internal passage connecting the base surface portion to the side surface portion, wherein a first section of the passage adjacent to the side surface portion is filled with the formable material to mechanically capture the fastener within the molded body, wherein the side surface portion includes a first recess, and the first section opens into the first recess.
Claim 3
Dependent Claim
21 words
The article of claim 1, wherein the first section extends in a first direction generally parallel to the base surface portion.
Claim 4
Dependent Claim
14 words
The article of claim 1, wherein the side surface portion includes a textured surface.
Claim 5
Dependent Claim
22 words
The article of claim 1, wherein a second section of the passage adjacent to the base surface portion defines a threaded bore.
Claim 6
Dependent Claim
29 words
The article of claim 4, wherein the fastener includes a top surface portion, and wherein the second section extends from the base surface portion to the top surface portion.
Claim 7
Dependent Claim
17 words
The article of claim 1, wherein the base surface portion is aligned with the first molded surface.
Claim 8
Dependent Claim
99 words
A fastener adapted to be mechanically integrated within an article pressure-formed onto a molding surface from a formable material, the fastener comprising: a base surface portion, a side surface portion, wherein the side surface portion includes a first recess, and a passage defining an internal path from the side surface portion to the base surface portion along which air and formable material adjacent the side surface portion flow toward the base surface portion when the article is formed about the fastener, wherein a first section of the passage adjacent to the side surface portion opens into the first recess.
Claim 9
Dependent Claim
99 words
A fastener adapted to be mechanically integrated within an article pressure-formed onto a molding surface from a formable material, the fastener comprising: a base surface portion, a side surface portion, wherein the side surface portion includes a first recess, and a passage defining an internal path from the side surface portion to the base surface portion along which air and formable material adjacent the side surface portion flow toward the base surface portion when the article is formed about the fastener, wherein a first section of the passage adjacent to the side surface portion opens into the first recess.
Claim 10
Dependent Claim
21 words
The fastener of claim 7, wherein the first section extends in a first direction generally parallel to the base surface portion.
Claim 11
Dependent Claim
20 words
The fastener of claim 7, wherein the first recess is an external groove extending about the periphery of the fastener.
Claim 12
Dependent Claim
20 words
The fastener of claim 7, wherein the side surface portion includes a textured surface immediately adjacent to the first recess.
Claim 13
Dependent Claim
20 words
The fastener of claim 7, wherein the first recess is an external groove extending away from the base surface portion.
Claim 14
Dependent Claim
22 words
The fastener of claim 7, wherein a second section of the passage adjacent to the base surface portion defines a threaded bore.
Claim 15
Dependent Claim
29 words
The fastener of claim 12, wherein the fastener includes a top surface portion, and wherein the second section extends from the base surface portion to the top surface portion.
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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) | 2001-11-23 | 2002-05-25 | 2002-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-23 | 2006-05-25 | 2006-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-23 | 2010-05-25 | 2010-11-24 | $7700.00 | Window Closed / Lapsed |