US4025258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming support device
Assignee: Individual
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Filing: 1975-09-10
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Granted: 1977-05-24
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Expires: 1995-09-10
Abstract
Abstract An apparatus and method for making a support device, typically of synthetic plastic material, in which fibrous backing members are concurrently cut, positioned, and bonded to the support device as it is formed. In an injection molding machine, a punch and die assembly cuts the backing members from a strip of fibrous material and automatically positions the members adjacent one side of the mold cavity. Molten plastic material is injected into the mold cavity and forms the support device while simultaneously adhering to the fibrous backing members. The completed support device has a body portion with load carrying members projecting from the forward surface thereof. The fibrous backing members are molded directly onto the rear surface of the body portion and a coating of adhesive material is placed on the outer surface of the fibrous backing members for securing the completed support device to a surface such as a wall or door.
Inventors
- 👤 Meyer J. Ragir
- 👤 George R. Olen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:42
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/14008; B29C45/14016; B29C45/14024; B29K; B29K2711/00; B29K2711/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
229 words
Apparatus for making a molded article having a wooden backing member bonded thereto comprising an injection molding machine having a molding die assembly including a male die portion and a female die portion, a punch and die mechanism supported on one of said molding die portions, means moving said male and female die portions into registry with one another to form a mold-defining cavity therebetween, said punch and die mechanism including cooperative punch means and cutting edge means in alignment with said mold-defining cavity, a supply of wooden backing material, means supporting and aligning said wooden backing material between said punch means and said cutting edge including slot means extending through said one molding die portion, said slot means being wider than the thickness of said wooden backing material, and means normally biasing said wooden backing material away from said cutting edge and towards said punch means, said die moving means including means advancing said punch means towards said closed cavity to sever a portion from said backing material to form a backing member and to advance said backing member towards and support said backing member along only a portion of the periphery of one wall of said mold-defining cavity, and means to feed molten material into said mold defining cavity to fill said cavity, whereby said molded article is formed and said wooden backing member is adhered thereto.
Claim 2
Dependent Claim
229 words
Apparatus for making a molded article having a wooden backing member bonded thereto comprising an injection molding machine having a molding die assembly including a male die portion and a female die portion, a punch and die mechanism supported on one of said molding die portions, means moving said male and female die portions into registry with one another to form a mold-defining cavity therebetween, said punch and die mechanism including cooperative punch means and cutting edge means in alignment with said mold-defining cavity, a supply of wooden backing material, means supporting and aligning said wooden backing material between said punch means and said cutting edge including slot means extending through said one molding die portion, said slot means being wider than the thickness of said wooden backing material, and means normally biasing said wooden backing material away from said cutting edge and towards said punch means, said die moving means including means advancing said punch means towards said closed cavity to sever a portion from said backing material to form a backing member and to advance said backing member towards and support said backing member along only a portion of the periphery of one wall of said mold-defining cavity, and means to feed molten material into said mold defining cavity to fill said cavity, whereby said molded article is formed and said wooden backing member is adhered thereto.
Claim 3
Dependent Claim
44 words
Apparatus as claimed in claim 1 including a plurality of said punch and die mechanisms supported in said one die portion, whereby a plurality of wooden backing members are severed from said wooden backing material and supported along the periphery of said mold-defining cavity.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |