US3352953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-molding method
Assignee: General Dynamics Corp
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Filing: 1965-05-27
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Granted: 1967-11-14
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Expires: 1985-05-27
Abstract
No abstract record available.
Inventors
- 👤 Arnold L Zavitz
- 👤 Ramon D Vanderveer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:25
CPC Classifications
B; B29; B29C; B29C43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A CONTROLLED SEMI-COMPRESSION COMPONENT ENCAPSULATING METHOD COMPRISING THE STEPS OF: POSITIONING THE COMPONENTS TO BE ENCAPSULATED IN A DIE HAVING COOPERATING CAVITY AND PLUNGER PORTIONS, PRE-HEATING THE DIE TO A PREDETERMINED TEMPERATURE, SUPPLYING THE DIE WITH A PREMEASURED AMOUNT OF LOW DENSITY MOLDING COMPOUND, POSITIONING PRE-CALIBRATED SPRING MEMBERS ON THE PLUNGER PORTION OF THE DIE, PLACING THE DIE IN A PRESSING APPARATUS, ACTUATING THE APPARATUS TO SUBSTANTIALLY FULLY COMPRESS THE SPRING MEMBERS TO APPLY PRESSURE TO THE MOLDING COMPOUND BY THE PLUNGER, APPLYING HEAT TO THE DIE WHEREBY THE MOLDING COMPOUND BECOMES FLUID AND PERMITTING THE SPRING MEMBERS TO EXTEND AND MOVE THE PLUNGER PORTION
Claim 2
Dependent Claim
105 words
A CONTROLLED SEMI-COMPRESSION COMPONENT ENCAPSULATING METHOD COMPRISING THE STEPS OF: POSITIONING THE COMPONENTS TO BE ENCAPSULATED IN A DIE HAVING COOPERATING CAVITY AND PLUNGER PORTIONS, PRE-HEATING THE DIE TO A PREDETERMINED TEMPERATURE, SUPPLYING THE DIE WITH A PREMEASURED AMOUNT OF LOW DENSITY MOLDING COMPOUND, POSITIONING PRE-CALIBRATED SPRING MEMBERS ON THE PLUNGER PORTION OF THE DIE, PLACING THE DIE IN A PRESSING APPARATUS, ACTUATING THE APPARATUS TO SUBSTANTIALLY FULLY COMPRESS THE SPRING MEMBERS TO APPLY PRESSURE TO THE MOLDING COMPOUND BY THE PLUNGER, APPLYING HEAT TO THE DIE WHEREBY THE MOLDING COMPOUND BECOMES FLUID AND PERMITTING THE SPRING MEMBERS TO EXTEND AND MOVE THE PLUNGER PORTION
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |