# US 10,245,769 B2 · Die slide rotational hollow molding assembly for creating an article with a hollow interior

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- Number: US 10,245,769 B2
- Document ID: US10245769B2
- Status: Granted
- Kind: B2
- Application number: 15/708,250
- Filed: 2017-09-19
- Published: 2018-01-04
- Granted: 2019-04-02
- Earliest claimed: 2014-10-09
- Assignees: U.S. Farathane Corporation
- Applicants: U.S. Farathane Corporation
- Inventors: Wayne Bland
- Web page: https://patentgrep.com/patent/US10245769B2

## CPC

- B29C 45/14467: {Joining articles or parts of a single article (B29C45/14377, B29C45/14385, B29C45/14581, B29C45/14614 and B29C45/006 take precedence)}
- B29C 44/08: using several expanding {or moulding} steps
- B29C 45/0062: {Joined by injection moulding}
- B32B 7/05: the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection (using interposed adhesives or bonding materials applied in spaced arrangements B32B7/14)
- B29C 2045/14524: {making hollow articles}
- B29L 2031/7172: {Fuel tanks, jerry cans}
- B32B 1/00: Layered products having a non-planar shape
- B32B 3/266: {characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12}
- B32B 3/28: characterised by a layer comprising a deformed thin sheet {, i.e. the layer having its entire thickness deformed out of the plane}, e.g. corrugated, crumpled (B32B29/08 takes precedence)
- B32B 2250/02: 2 layers
- B32B 2250/24: All layers being polymeric
- B32B 2439/00: Containers; Receptacles
- B32B 2439/02: Open containers
- B32B 2605/00: Vehicles
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

A mold assembly for forming a component exhibiting a sealed interior, including providing first and second mold halves, forming first and second half shells of material within cavities defined within each of the mold halves, and upon mating the mold halves together in a first closed mold configuration. The mold halves are reopened, with at least one of the shells being subsequently reoriented such that the first and second half shells are arrayed in opposing fashion with perimeter extending edges of each half shell arranged in contact with one another. Additional steps include reclosing the mold halves and subsequently forming a second perimeter extending material in contact with the contacting perimeter extending edges in order to bond the half shells together, upon which the mold halves are reopened and a completed component removed.

## Claims

### Claim 1

A mold assembly for forming a component exhibiting a sealed interior, said mold assembly comprising:
a stationary supported mold half;
a rotary platen supported mold half, each of said mold halves being movable in directions towards and away from one another in order to define each of engaged/closed and opened/separated positions;
each of said mold halves exhibiting a plurality of shell forming locations defined in opposing configured surfaces thereof for forming a first half shell of material in said stationary supported mold half and a second half shell of material in said rotary platen supported mold half and, upon mating said mold halves together in a first closed mold configuration; and
upon separating the mold halves, the rotary platen supported mold half being rotated, a pick and place mechanism separately being employed with the second mold half in order to transfer the second half shell to a further shell forming location within the stationary supported mold half in order to reposition the second half shell opposite the first half shell supported within the first mold half and so that the first and second half shells are arrayed in opposing fashion with a perimeter extending and formed edge of each half shell arranged in contact with one another;
said mold halves being subsequently reclosed prior to a second perimeter extending material being formed in contact with the contacting perimeter extending edges in order to bond the half shells together; and
said mold halves being reopened for removal of a completed component.

### Claim 2 (depends on 1)

The mold assembly as described in claim 1, each of said plurality of shell forming locations further comprising at least one cavity and at least one opposing seating projection.