US3580178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Externally lubricated projectile and method of making same
Assignee: DANIEL TURCUS JR
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Filing: 1967-10-31
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Granted: 1971-05-25
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Expires: 1987-10-31
Abstract
Abstract A bullet having a core which is secured to a jacket. At least the piercing end or extremity of the core is coated with a lowfriction fluorocarbon resin, such as polytetrafluoroethylene. The resin may also be used to secure the jacket to the core.
Inventors
- 👤 Paul J Kopsch
- 👤 Daniel Turcus Jr
- 👤 Donald F Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:46
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/72; F42B12/76; F42B12/80; F42B12/82
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
A bullet comprising; a core having a generally cylindrical body portion, an inwardly tapering nose portion at one end of said body portion, said core being formed of a relatively hard metallic material, a cuplike jacket member telescopically fitted over said body portion at the end thereof opposite said nose portion, said jacket member and said body portion having axial regions parallel to and closely adjacent each other, and a thin coating of fluorocarbon resin on said core, said coating being bonded to both the core and the jacket and being the sole connecting means connecting said jacket to said core.
Claim 2
Dependent Claim
101 words
A bullet comprising; a core having a generally cylindrical body portion, an inwardly tapering nose portion at one end of said body portion, said core being formed of a relatively hard metallic material, a cuplike jacket member telescopically fitted over said body portion at the end thereof opposite said nose portion, said jacket member and said body portion having axial regions parallel to and closely adjacent each other, and a thin coating of fluorocarbon resin on said core, said coating being bonded to both the core and the jacket and being the sole connecting means connecting said jacket to said core.
Claim 3
Dependent Claim
12 words
A bullet according to claim 1 in which said resin is polytetrafluoroethylene.
Claim 4
Dependent Claim
30 words
A bullet according to claim 2 in which said polytetrafluorethylene coating is sintered in situ in the space between the said axial regions of said core and said jacket member.
References Cited (Backward Citations)
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US2478229A
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US2612108A
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US2562118A
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US2689380A
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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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |