US4929137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety arrangement for proving the unauthorized opening of a housing
Assignee: Daimler Benz AG
•
Filing: 1987-11-18
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Granted: 1990-05-29
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Expires: 2007-11-18
Abstract
Abstract A safety rivet arrangement for indicating the unauthorized opening of a housing whose wall parts are connected with each other at a separating joint which has a covered outer edge. A safety rivet extends through the connection and is considerably harder than the material of the housing wall parts. The rivet ends are arranged recessed, and the safety rivet is also only loosely peened-over so as to be rotatable. By reason of its high material hardness, and the rotatable arrangement, the rivet cannot be drilled out with some evidence of the drilling.
Inventors
- 👤 Alban Bossenmaier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:07
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/02; F; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/506; Y; Y10; Y10S; Y10S411/00; Y10S411/91; Y10T; Y10T403/00; Y10T403/49; Y10T403/4941; Y10T403/75
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
155 words
A safety rivet arrangement for indicating an unauthorized opening of housing parts including a housing in which wall parts of the housing enclose a space and are connected at a formed by flanges on each of said wall parts, one of said wall parts having an apron integral therewith extending over the separating joint and engaging the flange of the other of said wall parts, the wall parts enclosing the space being riveted together by at least one safety rivet which can be removed only destructively and which is made of a harder material than the material of at least one of the connected wall parts, the safety rivet consisting of steel, wherein a construction of at least one of the housing wall parts is of an aluminum or plastic material and the rivet having ends, one of which ends is peened-over in such a manner that the rivet is readily rotatable without any play.
Claim 2
Dependent Claim
155 words
A safety rivet arrangement for indicating an unauthorized opening of housing parts including a housing in which wall parts of the housing enclose a space and are connected at a formed by flanges on each of said wall parts, one of said wall parts having an apron integral therewith extending over the separating joint and engaging the flange of the other of said wall parts, the wall parts enclosing the space being riveted together by at least one safety rivet which can be removed only destructively and which is made of a harder material than the material of at least one of the connected wall parts, the safety rivet consisting of steel, wherein a construction of at least one of the housing wall parts is of an aluminum or plastic material and the rivet having ends, one of which ends is peened-over in such a manner that the rivet is readily rotatable without any play.
Claim 3
Dependent Claim
16 words
A safety rivet arrangement according to claim 1, wherein the safety rivet consists of alloyed steel.
Claim 4
Dependent Claim
118 words
A safety rivet arrangement for indicating an unauthorized opening of housing parts including: a housing in which wall parts enclose a space and are connected at a separating joint formed by flanges on each of said wall parts, one of said wall parts having an apron integral therewith extending over the separating joint and engaging the flange of the other of said wall parts, the wall parts enclosing the space being riveted together by at least one safety rivet of a material harder than the material of at least one of the connected wall parts and removable only by destruction, and wherein the safety rivet is integrated in one piece with the harder one of the housing parts.
Claim 5
Dependent Claim
118 words
A safety rivet arrangement for indicating an unauthorized opening of housing parts including: a housing in which wall parts enclose a space and are connected at a separating joint formed by flanges on each of said wall parts, one of said wall parts having an apron integral therewith extending over the separating joint and engaging the flange of the other of said wall parts, the wall parts enclosing the space being riveted together by at least one safety rivet of a material harder than the material of at least one of the connected wall parts and removable only by destruction, and wherein the safety rivet is integrated in one piece with the harder one of the housing parts.
Claim 6
Dependent Claim
25 words
A safety rivet arrangement according to claim 3, wherein the safety rivet consists of the same material as the harder one of the housing parts.
Claim 7
Dependent Claim
39 words
An arrangement according to claim 1, wherein the safety rivet is recessed at the peened-over rivet end in a countersunk recess in one of the wall parts and is form-lockingly surrounded by peened-over edge material of the countersunk recess.
Claim 8
Dependent Claim
23 words
An arrangement according to claim 5, wherein the peened-over rivet end and the associated countersunk recess in the wall part are constructed conically.
Claim 9
Dependent Claim
26 words
An arrangement according to claim 6, wherein the safety rivet is cast with a prefabricated head in the material of the one of the housing parts.
Claim 10
Dependent Claim
35 words
An arrangement according to claim 7, wherein the separating joint between the connected housing parts is arranged hidden along the outer edge thereof by the apron, said apron with one of the housing wall parts.
Claim 11
Dependent Claim
17 words
An arrangement according to claim 1, wherein both rivet ends are arranged recessed in the wall parts.
Claim 12
Dependent Claim
20 words
An arrangement according to claim 2, wherein the peened-over rivet end is recessed with respect to a corresponding wall part.
Claim 13
Dependent Claim
20 words
An arrangement according to claim 1, wherein the peened-over rivet end is recessed with respect to a corresponding wall part.
Claim 14
Dependent Claim
151 words
A safety rivet arrangement for indicating an unauthorized opening of housing parts including a housing in which wall parts of the housing enclose a space and are connected at a separating joint formed by flanges on each of said wall parts, one of said wall parts having an apron integral therewith extending over the separating joint and engaging the flange of the other of said wall parts, the wall parts enclosing the space being riveted together by at least one safety rivet having a prefabricated head and which can be removed only destructively and which is made of harder material than the material of at least one of the connected wall parts, the safety rivet consisting of steel, wherein a construction of at least one of the housing parts is of an aluminum or plastic material and being cast with its prefabricated head in the material of the associated housing part.
Claim 15
Dependent Claim
151 words
A safety rivet arrangement for indicating an unauthorized opening of housing parts including a housing in which wall parts of the housing enclose a space and are connected at a separating joint formed by flanges on each of said wall parts, one of said wall parts having an apron integral therewith extending over the separating joint and engaging the flange of the other of said wall parts, the wall parts enclosing the space being riveted together by at least one safety rivet having a prefabricated head and which can be removed only destructively and which is made of harder material than the material of at least one of the connected wall parts, the safety rivet consisting of steel, wherein a construction of at least one of the housing parts is of an aluminum or plastic material and being cast with its prefabricated head in the material of the associated housing part.
Claim 16
Dependent Claim
36 words
An arrangement according to claim 1, wherein the separating joint between the connected housing parts is arranged hidden along the outer edge thereof by the apron, said apron integral with one of the housing wall parts.
Claim 17
Dependent Claim
22 words
An arrangement according to claim 1, wherein the peened-over rivet end and the associated recess in the wall part are constructed conically.
References Cited (Backward Citations)
US3103547A
Cited
US1947839A
Cited
US2160374A
Cited
US2328708A
Cited
US2465654A
Cited
US2987909A
Cited
US3445929A
Cited
US3452149A
Cited
US4198014A
Cited
US4130369A
Cited
US4411169A
Cited
US4473714A
Cited
DE8520327U1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |