Patent US4582462A successfully refreshed from Google Patents.
US4582462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic protecting cap for a polygon nut
Assignee: Individual
•
Filing: 1984-09-27
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Granted: 1986-04-15
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Expires: 2004-09-27
Abstract
Abstract A plastic protecting cap for the clamping on a polygon nut, with a cylinder casing, which overlaps the polygon nut. The technical problem of the present invention is the provision of a plastic protecting cap, which, by a turning movement, can be clamped safely and firmly on the polygon nut and can be released therefrom by turning in opposite direction again. On the internal face of the casing, at least, two axial profile webs are arranged at places corresponding to polygonal corners, each web comprises a groove profile, open against the axis, with a vertex angle equal to the polygon angle, the radial distance of the vertex of each groove profile from the profile axis being slightly smaller than the radial distance of each corner of the polygon nut profile from the profile axis, and one flange surface of the groove profile is longer, in circumferential direction, than the other flange surface.
Inventors
- 👤 Horst Thiel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:00
CPC Classifications
B; B60; B60B; B60B3/00; B60B3/14; B60B3/16; B60B3/165; B60B7/00; B60B7/02; F; F16; F16B; F16B37/00; F16B37/14; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/907
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
106 words
A plastic protecting cap adapted to fit over a polygon nut having a plurality of polygonal corners each with a polygon angle, the protecting cap comprising: (a) a generally cylindrical casing; and (b) a plurality of radially inwardly extending webs, each web comprising: (i) a first flange surface; (ii) a second, longer flange surface; and, (iii) an axially extending groove, the sides of the groove defining a vertex angle approximately equal to the polygon angle, the radial distance from a central axis to the vertex of the vertex angle being smaller than the radial distance from a central axis to the polygon corners of the nut.
Claim 2
Dependent Claim
106 words
A plastic protecting cap adapted to fit over a polygon nut having a plurality of polygonal corners each with a polygon angle, the protecting cap comprising: (a) a generally cylindrical casing; and (b) a plurality of radially inwardly extending webs, each web comprising: (i) a first flange surface; (ii) a second, longer flange surface; and, (iii) an axially extending groove, the sides of the groove defining a vertex angle approximately equal to the polygon angle, the radial distance from a central axis to the vertex of the vertex angle being smaller than the radial distance from a central axis to the polygon corners of the nut.
Claim 3
Dependent Claim
44 words
The protecting cap according to claim 1 wherein the polygon nut has a plurality of sides each having a lateral length S and wherein the first, shorter flange surface of each web has a width in the circumferential direction of between 10%-20% of S.
Claim 4
Dependent Claim
43 words
The protecting cap according to claim 1 wherein the radial distance between a central axis and the vertex of the vertex angle is between 3% and 5% smaller than the radial distance between a central axis and the polygon corners of the nut.
Claim 5
Dependent Claim
28 words
A plastic protecting cap according to claim 1 wherein the polygon nut has a hexagon nut profile, and wherein six axial profile webs are provided on the casing.
Claim 6
Dependent Claim
41 words
The protecting cap according to claim 4 wherein each side of the hexagon nut has a lateral length S and wherein the first, shorter flange surface of each web has a width in the circumferential direction of approximately 12% of S.
Claim 7
Dependent Claim
42 words
The protecting cap according to claim 4 wherein each side of the hexagon nut has a lateral length S and wherein the second, longer flange surface of each web has a width in the circumferential direction of greater than 15% of S.
Claim 8
Dependent Claim
32 words
A plastic protecting cap according to claim 4, wherein the cylinder casing further comprising a stepped head portion with a hexagon profile similar to the hexagon nut profile of the hexagon nut.
Claim 9
Dependent Claim
31 words
A plastic protecting cap according to claim 7, wherein the first, shorter flange surface of the groove profile in each web is oriented in the tightening direction of the hexagon nut.
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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) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |