Patent US5454676A successfully refreshed from Google Patents.
US5454676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety screw particularly for skates
Assignee: Roces SRL
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Filing: 1994-02-10
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Granted: 1995-10-03
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Expires: 2014-02-10
Abstract
Abstract A safety screw for skates, including a male part, provided with a first head and with a first internally threaded stem, and a female part, provided with a second head and with a second stem that has a complementarily threaded first seat for the first stem. In this screw, the male part has an axial external reeding which is adjacent to the first head and has a slightly larger diameter than the first stem. The reeding interacts with a second seat that has a slightly smaller diameter. The second seat is formed at the free end of the female part, and is contiguous to the first seat.
Inventors
- 👤 Gino Conte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:04
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/0006; A63C17/22; A63C17/226; F; F16; F16B; F16B35/00; F16B35/04; F16B35/041; F16B35/044; F16B35/048; F16B37/00; F16B37/14; F16B37/145; F16B4/00; F16B4/004; A63C17/04; A63C17/06; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
111 words
A safety screw, particularly for skates, comprising a male part and a female part, said male part having a first head and an externally threaded first stem, said female part having a second head and a second stem, said second stem having a complementarily threaded first seat for said first stem, said male part having an external reeding adjacent to said first head, said external reeding having a slightly larger diameter than said first stem, said reeding interacting with a second seat having a slightly smaller diameter than said external reeding, said second seat being formed at a free end of said female part and being contiguous to said first seat.
Claim 2
Dependent Claim
111 words
A safety screw, particularly for skates, comprising a male part and a female part, said male part having a first head and an externally threaded first stem, said female part having a second head and a second stem, said second stem having a complementarily threaded first seat for said first stem, said male part having an external reeding adjacent to said first head, said external reeding having a slightly larger diameter than said first stem, said reeding interacting with a second seat having a slightly smaller diameter than said external reeding, said second seat being formed at a free end of said female part and being contiguous to said first seat.
Claim 3
Dependent Claim
28 words
A screw according to claim 1 wherein said male part has said external reeding at said first stem, said external reeding being axially arranged at said first stem.
Claim 4
Dependent Claim
20 words
A screw according to claim 1 wherein said second seat is blended to said first seat along a conical flaring.
Claim 5
Dependent Claim
36 words
A screw according to claim 1 wherein said reeding is constituted by a surface that has a plurality of protrusions that rise with respect to an outer lateral surface of a thread of said first stem.
Claim 6
Dependent Claim
124 words
A safety screw, particularly for skates, comprising a male part and a female part, said male part having a first head and an externally threaded first stem, said female part having a second head and a second stem, said second stem having a complementarily threaded first seat for said first stem, said male part having an external reeding adjacent to said first head, said external reeding having a slightly larger diameter than said first stem, said reeding interacting with a second seat having a slightly smaller diameter than said external reeding, said second seat being formed at a free end of said female part and being contiguous to said first seat, said second seat being blended to said first seat along a conical flaring.
Claim 7
Dependent Claim
124 words
A safety screw, particularly for skates, comprising a male part and a female part, said male part having a first head and an externally threaded first stem, said female part having a second head and a second stem, said second stem having a complementarily threaded first seat for said first stem, said male part having an external reeding adjacent to said first head, said external reeding having a slightly larger diameter than said first stem, said reeding interacting with a second seat having a slightly smaller diameter than said external reeding, said second seat being formed at a free end of said female part and being contiguous to said first seat, said second seat being blended to said first seat along a conical flaring.
Claim 8
Dependent Claim
130 words
A safety screw, particularly for skates, comprising: a male part having a first head and an externally threaded first stem, said male part being provided with an external reeding adjacent to said first head, said external reeding having a slightly larger diameter than said first stem; and a female part having a second head and a second stem, said second stem having an internally threaded substantially cylindrical first seat receiving said first stem, said female part having a substantially cylindrical second seat having a slightly smaller diameter than said external reeding and a larger diameter than said first seat, said second seat being formed at a free end of said female part and being contiguous to said first seat, said second seat receiving said external reeding of said male part.
Claim 9
Dependent Claim
130 words
A safety screw, particularly for skates, comprising: a male part having a first head and an externally threaded first stem, said male part being provided with an external reeding adjacent to said first head, said external reeding having a slightly larger diameter than said first stem; and a female part having a second head and a second stem, said second stem having an internally threaded substantially cylindrical first seat receiving said first stem, said female part having a substantially cylindrical second seat having a slightly smaller diameter than said external reeding and a larger diameter than said first seat, said second seat being formed at a free end of said female part and being contiguous to said first seat, said second seat receiving said external reeding of said male part.
Claim 10
Dependent Claim
28 words
A screw according to claim 6 wherein said male part has said external reeding at said first stem, said external reeding being axially arranged at said first stem.
Claim 11
Dependent Claim
20 words
A screw according to claim 6 wherein said second seat is blended to said first seat along a conical flaring.
Claim 12
Dependent Claim
36 words
A screw according to claim 6 wherein said reeding is constituted by a surface that has a plurality of protrusions that rise with respect to an outer lateral surface of a thread of said first stem.
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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) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |