US4828444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic push-on nut
Assignee: Nifco Inc
•
Filing: 1987-08-10
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Granted: 1989-05-09
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Expires: 2007-08-10
Abstract
Abstract This invention relates to a one-piece molded nut made of plastic which is used to secure one member to another in cooperation with a stud. The nut includes a cylindrical portion having an inner space and an engagement piece extending across the open end of the cylindrical portion.
Inventors
- 👤 Tsutomu Oshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:16
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/041; F16B37/043; F16B37/08; F16B37/0807; F16B37/0842; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/908; Y10S411/924; Y10S411/947
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
79 words
A nut in the form of a plastic one-piece molding comprising a cylindrical portion having an inner space, at least one engagement piece extending at an open end of said space across said open end, and a female thread formed on the outer surface of said engagement piece to be meshed with a male thread of a stud, said engagement piece being engageable with an inner surface of said cylindrical portion upon being deflected by a complementary threaded stud.
Claim 2
Dependent Claim
79 words
A nut in the form of a plastic one-piece molding comprising a cylindrical portion having an inner space, at least one engagement piece extending at an open end of said space across said open end, and a female thread formed on the outer surface of said engagement piece to be meshed with a male thread of a stud, said engagement piece being engageable with an inner surface of said cylindrical portion upon being deflected by a complementary threaded stud.
Claim 3
Dependent Claim
18 words
The nut according to claim 1, wherein said engagement piece includes a stem having a reduced thickness portion.
Claim 4
Dependent Claim
19 words
The nut according to claim 1, wherein an end of said engagement piece is provided with an ear portion.
Claim 5
Dependent Claim
24 words
The nut according to claim 1, wherein the outer periphery of said cylindrical portion adjacent to said open end is provided with a flange.
Claim 6
Dependent Claim
22 words
The nut according to claim 1, wherein the inner surface of said space is provided with two arcuate walls facing each other.
Claim 7
Dependent Claim
19 words
The nut according to claim 1, wherein the outer periphery of said cylindrical portion has a circular sectional profile.
Claim 8
Dependent Claim
19 words
The nut according to claim 1, wherein the outer periphery of said cylindrical portion has a polygonal sectional profile.
Claim 9
Dependent Claim
21 words
The nut according to claim 1, wherein the outer periphery of said cylindrical portion is provided with an elastic engagement piece.
Claim 10
Dependent Claim
69 words
A nut in the form of a plastic one-piece molding comprising a cylindrical portion having an inner space, at least one engagement piece extending at an open end of said space across said open end, said engagement piece including a stem having a reduced thickness portion, and a female thread formed on an outer surface of said engagement piece to be meshed with a male thread of the stud.
Claim 11
Dependent Claim
69 words
A nut in the form of a plastic one-piece molding comprising a cylindrical portion having an inner space, at least one engagement piece extending at an open end of said space across said open end, said engagement piece including a stem having a reduced thickness portion, and a female thread formed on an outer surface of said engagement piece to be meshed with a male thread of the stud.
Claim 12
Dependent Claim
19 words
The nut according to claim 9, wherein an end of said engagement piece is provided with an ear portion.
Claim 13
Dependent Claim
24 words
The nut according to claim 9, wherein the outer periphery of said cylindrical portion adjacent to said open end is provided with a flange.
Claim 14
Dependent Claim
22 words
The nut according to claim 9, wherein the inner surface of said space is provided with two arcuate walls facing each other.
Claim 15
Dependent Claim
19 words
The nut according to claim 9, wherein the outer periphery of said cylindrical portion has a circular sectional profile.
Claim 16
Dependent Claim
19 words
The nut according to claim 9, wherein the outer periphery of said cylindrical portion has a polygonal sectional profile.
Claim 17
Dependent Claim
21 words
The nut according to claim 9, wherein the outer periphery of said cylindrical portion is provided with an elastic engagement piece.
Claim 18
Dependent Claim
70 words
A nut in the form of a plastic one-piece molding comprising a cylindrical portion having an inner space and a flange extending from an outer periphery of said cylindrical portion, at least one engagement piece extending at an open end of said space across said open end, and a female thread formed on an outer surface of said engagement piece to be meshed with a male thread of a stud.
Claim 19
Dependent Claim
70 words
A nut in the form of a plastic one-piece molding comprising a cylindrical portion having an inner space and a flange extending from an outer periphery of said cylindrical portion, at least one engagement piece extending at an open end of said space across said open end, and a female thread formed on an outer surface of said engagement piece to be meshed with a male thread of a stud.
Claim 20
Dependent Claim
18 words
The nut according to claim 16, wherein said engagement piece includes a stem having a reduced thickness portion.
Claim 21
Dependent Claim
19 words
The nut according to claim 1, wherein an end of said engagement piece is provided with an ear portion.
Claim 22
Dependent Claim
22 words
The nut according to claim 1, wherein the inner surface of said space is provided with two arcuate walls facing each other.
Claim 23
Dependent Claim
21 words
The nut according to claim 1, wherein the outer periphery of said cylindrical portion is provided with an elastic engagement piece.
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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) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |