Seal molding system

• US 9,993,952 B2
• Filed: 01/20/2016
• Issued: 06/12/2018
• Est. Priority Date: 03/17/2013
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Coffland, Donald W., Downing, Garrett W., Nguyen, David T.
• Primary Examiner(s): Bell, William P
• Application Number:
  US15/001,908
• Publication Number:
  US 20160136857A1
• Time in Patent Office: 874 Days
• CPC Class Codes: B29C 2045/14459 injecting seal elements
• CPC Class Codes: B29C 2045/645 using magnetic means
• CPC Class Codes: B29C 33/005 characterised by the location of the parting line of the mould parts
• CPC Class Codes: B29C 33/0077 characterised by the configuration of the mould filling gate mixing chambers situated in the mould opening B29B7/7471; accessories for connecting the mould filling gate with the filling spout
• CPC Class Codes: B29C 33/30 Mounting, exchanging or centering moulds, mould parts or cores; B29C33/485 takes precedence
• CPC Class Codes: B29C 39/10 incorporating preformed parts or layers, e.g. casting around inserts or for coating articles coating a surface by casting in general B05D1/30, B29C39/126 takes precedence
• CPC Class Codes: B29C 45/14426 Coating the end of wire-like or rod-like or cable-like or blade-like or belt-like articles
• CPC Class Codes: B29C 45/14549 Coating rod-like, wire-like or belt-like articles B29C45/14426 takes precedence
• CPC Class Codes: B29C 45/14598 Coating tubular articles
• CPC Class Codes: B29C 45/34 having venting means
• CPC Class Codes: B29C 45/64 Mould opening, closing or clamping devices combined with means for plasticising or homogenising B29C45/70
• CPC Class Codes: B29C 45/641 Clamping devices using means for straddling or interconnecting the mould halves, e.g. jaws, straps, latches
• CPC Class Codes: B29L 2023/00 Tubular articles B29L2024/00 takes precedence ; catheters B29L2031/7542
• CPC Class Codes: B29L 2031/26 Sealing devices, e.g. packaging for pistons or pipe joints
• CPC Class Codes: B29L 2031/3076 Aircrafts blades, propellers B29L2031/08

Abstract

A seal molding system may include a mold body having a mold inner geometry formed complementary to a fitting outer geometry of a fitting. The mold body may have a mold base formed complementary to a panel surface. The mold body may include an injection hole for injecting sealant into the mold cavity, and a vent hole for venting air and sealant from the mold cavity.

Claims

1. A seal molding system for forming a seal around a fitting mounted to a panel, comprising:

a pair of mold body halves configured to be assembled around a fitting along mold parting lines and having a mold inner geometry formed complementary to a fitting outer geometry of the fitting;

the mold body halves having a mold base formed complementary to a panel surface; and

the mold body halves having an interlocking tab and pocket formed into the mold parting lines on opposite circumferential ends of each one of the mold body halves for coupling the mold body halves together when assembled around the fitting, each mold parting line including a pair of axial portions oriented parallel to the fitting axis and interconnected by an angled portion oriented non-perpendicular to the axial portions, the axial portions and the angled portion collectively defining a Z-shape in the mold parting line when the coupled mold body halves are viewed from a side direction oriented perpendicular to the fitting axis and looking onto the mold parting line.

2. The seal molding system of claim 1, wherein the mold body halves are identical to one another.

3. The seal molding system of claim 1, further including:

at least one magnet fixedly coupled to the mold body for urging the mold body against the panel surface; and

the magnet being configured to magnetically couple with an additional magnet located on an opposite side of the panel and coupled to an additional mold body.

4. The seal molding system of claim 3, wherein:

the mold body includes a pair of magnets mounted on opposite sides of the mold body.

5. The seal molding system of claim 1, further including:

a bottom plate configured complementary to a fitting flange for mating the bottom plate to an underside of the fitting flange; and

the mold body being mateable to the bottom plate to encapsulate the fitting flange and form the mold cavity for receiving sealant for forming a preformed seal.

6. The seal molding system of claim 1, wherein:

the mold body halves include a radial lip to facilitate sealing against the fitting body.

7. The seal molding system of claim 1, wherein:

the mold body halves include side walls having a draft angle facilitating the removal of the mold body halves from the seal after forming.

8. The seal molding system of claim 1, further including:

at least one of a tie wrap, a clamping mechanism, and a magnet for clamping the mold body halves to the panel and the fitting.

9. A seal molding system for forming a preformed seal around a fitting, comprising:

a bottom plate configured complementary to a fitting flange for mating to an underside of the fitting flange;

a mold body having a mold inner geometry formed complementary to a fitting outer geometry;

the mold body being mateable to the bottom plate to encapsulate the fitting flange and form a mold cavity;

the mold body including an injection hole for injecting sealant into the mold cavity;

the bottom plate including a ridge configured to extend around the fitting flange when the bottom plate is mated to the fitting flange; and

the ridge configured to form a groove directly into a perimeter edge of the preformed seal to facilitate bonding of the perimeter edge to a panel to which the fitting is mounted.

10. The seal molding system of claim 9, wherein the mold body includes a vent hole for venting air and sealant from the mold cavity.

11. The seal molding system of claim 9, wherein the mold body comprises a plurality of mold body portions configured to be assembled around the fitting.

12. The seal molding system of claim 11, wherein the mold body portions include interlocking features formed on the mold body portions.

13. The seal molding system of claim 9, wherein the mold body includes at least one port-forming post for forming an injection port in a perimeter edge of the preformed seal.

14. A seal molding system for forming a seal around a fitting mounted to a panel, comprising:

a mold body having a mold inner geometry and a mold bore formed complementary to a fitting outer geometry of a fitting, the mold body including a plurality of depressions for accommodating a plurality of flange fasteners;

a seal skin lower plate having a lower plate outer geometry configured substantially similar to the fitting outer geometry and the panel surface, the seal skin lower plate including a plurality of protuberances simulating the corresponding plurality of flange fasteners extending outwardly from a fitting flange for attaching the fitting flange to the panel, the lower plate outer geometry including a plug portion configured complementary to and receivable within the mold bore;

the mold body being mateable to the seal skin lower plate with the plug portion sealingly engaged with the mold bore, the mold body and seal skin lower plate collectively defining a mold cavity for forming a seal skin from sealant injected into the mold cavity; and

the mold cavity being configured such that the seal skin is complementary to the panel surface including having bulges at locations of the protuberances in the seal skin lower plate and the depressions in the mold body.

15. The seal molding system of claim 14, wherein:

the mold bore including a radial lip configured to seal against the sides of the plug portion when inserted into the mold bore when the mold body is mated to the seal skin lower plate.

16. The seal molding system of claim 14, wherein:

the mold body includes at least one port-forming post for forming an injection port in the seal skin for bonding the seal skin to the fitting and the panel.

17. A seal molding system for forming a seal around a fitting, comprising:

a mold body, including a fixed base portion and a rotatably adjustable top portion;

the fixed base portion having a base portion inner geometry configured complementary to a panel surface and to a fitting base of a fitting defining a fitting axis;

the rotatably adjustable top portion being mountable on top of and directly coupleable to the fixed base portion and having a non-cylindrical top portion inner geometry configured complementary to a non-cylindrical fitting feature rotatably engaged to the fitting base, the base portion inner geometry of the fixed base portion and the non-cylindrical top portion inner geometry of the rotatably adjustable top portion each surrounding the fitting axis when mated to the fitting; and

the rotatably adjustable top portion being rotatable about the fitting axis relative to the fixed base portion for clocking the non-cylindrical top portion inner geometry into alignment with the non-cylindrical fitting feature.

18. The seal molding system of claim 17, wherein:

the fixed base portion and the rotatably adjustable top portion include an alignment feature for maintaining axial alignment of the base portion and the top portion during relative rotation.

19. The seal molding system of claim 17, wherein:

the rotatably adjustable top portion is comprised of a pair of top portion halves being engageable to one another and being formed complementary to the fitting outer geometry;

each one of the top portion halves including a pair of clamping posts on opposing terminal ends of the top portion halves for clamping the top portions halves together;

the fixed base portion being comprised of a pair of base portion halves being engageable to one another; and

each one of the top portion halves including a pair of clamping posts located on opposing terminal ends of the top portion halves for clamping the top portions halves together.

20. The seal molding system of claim 17, wherein:

the non-cylindrical fitting feature is a hex-shaped nut; and

the non-cylindrical top portion inner geometry is hex-shaped complementary to the hex-shaped nut.