US3653697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated joint
Assignee: Individual
•
Filing: 1969-08-12
•
Granted: 1972-04-04
•
Expires: 1989-08-12
Abstract
Abstract A joint for connecting two or more structural elements at an angle to each other. At least a first of these elements is of a tubular shape, preferably of a rectangular cross section, and provided with an aperture in its wall through which the end of a second element is inserted so as to abut directly or indirectly against the inside of the wall of the first element at a point opposite the aperture where the inserted end of the second element is additionally secured either directly or indirectly to the wall of the first element. The two elements may either be welded directly to each other or be interconnected by an additional supporting member which may be inserted into and welded to the first element and then braces the opposite wall portions of the latter against each other. This supporting member forms a socket into which the end of the second element may be inserted.
Inventors
- 👤 Herbert Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:43
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/58; E04B1/5825; E04B1/5837; E04B1/585; F; F16; F16B; F16B7/00; E04B2001/5856; F16B2200/00; F16B2200/10; Y; Y10; Y10T; Y10T403/00; Y10T403/21; Y10T403/213
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
105 words
A joint structure comprising a tubular element with a first wall and an opposite second wall, said first wall having an aperture surrounded by an inwardly directed collar constituted by an inbent portion of said first wall, a rod extending transversely through said aperture into said tubular element and having an end proximal to said second wall, said rod being tightly embraced by said collar, securing means on said second wall engaging said end for holding said rod in place, and a rigid sleeve surrounding said collar and at least partially surrounding said rod while being wholly received in said element and bridging said walls.
Claim 2
Dependent Claim
105 words
A joint structure comprising a tubular element with a first wall and an opposite second wall, said first wall having an aperture surrounded by an inwardly directed collar constituted by an inbent portion of said first wall, a rod extending transversely through said aperture into said tubular element and having an end proximal to said second wall, said rod being tightly embraced by said collar, securing means on said second wall engaging said end for holding said rod in place, and a rigid sleeve surrounding said collar and at least partially surrounding said rod while being wholly received in said element and bridging said walls.
Claim 3
Dependent Claim
73 words
A joint structure as defined in claim 1 wherein said end has a substantially frustoconical recess facing said second wall, the latter having an inbent portion forming complementarily frustoconical boss of annular shape engaging in said recess, said securing means comprising a screw lodged in said boss and axially threaded into said end, said screw having a head bearing from without onto said bOss for maintaining same in firm contact with said recess.
Claim 4
Dependent Claim
161 words
A joint structure comprising a tubular element with a first wall and an opposite second wall, said first wall having an aperture surrounded by an inwardly directed collar constituted by an inbent portion of said first wall; a rod extending transversely through said aperture into said tubular element and having an end proximal to said second wall, said rod being tightly embraced by said collar; securing means on said second wall engaging said end for holding said rod in place, said end having a substantially frustoconical recess facing said second wall, the latter having an inbent portion forming complementarily frustoconical boss of annular shape engaging in said recess, said securing means comprising a screw lodged in said boss and axially threaded into said end, said screw having a head bearing from without onto said boss for maintaining same in firm contact with said recess; and a serrated frustoconical washer interposed between said recess and said boss under pressure from said screw.
Claim 5
Dependent Claim
161 words
A joint structure comprising a tubular element with a first wall and an opposite second wall, said first wall having an aperture surrounded by an inwardly directed collar constituted by an inbent portion of said first wall; a rod extending transversely through said aperture into said tubular element and having an end proximal to said second wall, said rod being tightly embraced by said collar; securing means on said second wall engaging said end for holding said rod in place, said end having a substantially frustoconical recess facing said second wall, the latter having an inbent portion forming complementarily frustoconical boss of annular shape engaging in said recess, said securing means comprising a screw lodged in said boss and axially threaded into said end, said screw having a head bearing from without onto said boss for maintaining same in firm contact with said recess; and a serrated frustoconical washer interposed between said recess and said boss under pressure from said screw.
Claim 6
Dependent Claim
100 words
A joint structure comprising a tubular element with a first wall and an opposite second wall, said first wall having an aperture surrounded by an inwardly directed collar constituted by an inbent portion of said first wall; a rod extending transversely through said aperture into said tubular element and having an end proximal to said second wall, said rod being tightly embraced by said collar; securing means on said second wall engaging said end for holding said rod in place; and a tubular spacer in said element coaxially surrounding said rod and said collar while bearing endwise upon said walls.
Claim 7
Dependent Claim
100 words
A joint structure comprising a tubular element with a first wall and an opposite second wall, said first wall having an aperture surrounded by an inwardly directed collar constituted by an inbent portion of said first wall; a rod extending transversely through said aperture into said tubular element and having an end proximal to said second wall, said rod being tightly embraced by said collar; securing means on said second wall engaging said end for holding said rod in place; and a tubular spacer in said element coaxially surrounding said rod and said collar while bearing endwise upon said walls.
Claim 8
Dependent Claim
34 words
A joint structure as defined in claim 4 wherein said spacer has a stepped central bore with a small-diameter section gripping said rod at said end and with a large-diameter section embracing said collar.
Claim 9
Dependent Claim
39 words
A joint structure as defined in claim 5 wherein the small-diameter section of said bore is closed toward said second wall except for a hole of reduced diameter accommodating said securing means, thereby forming a socket for said end.
Claim 10
Dependent Claim
74 words
A joint structure as defined in claim 4 wherein said spacer has a substantially frustoconical recess facing said second wall, the latter having an inbent portion forming a complementarily frustoconical boss of annular shape engaging in said recess, said securing means comprising a screw lodged in said boss and axially threaded into said end, said screw having a head bearing from without onto said boss for maintaining same in firm contact with said recess.
Claim 11
Dependent Claim
34 words
A joint structure as defined in claim 6 wherein said spacer is axially divided into two interfitting parts respectively forming said small-diameter section and said large-diameter section, one of said parts defining said socket.
Claim 12
Dependent Claim
27 words
A joint structure as defined in claim 5 wherein said spacer is axially divided into two interfitting parts respectively forming said small-diameter section and said large-diameter section.
Claim 13
Dependent Claim
24 words
A joint structure as defined in claim 4 wherein said rod and said spacer are situated adjacent an open end of said tubular element.
Claim 14
Dependent Claim
20 words
A joint structure as defined in claim 10, further comprising a plug in said open end inegral with said spacer.
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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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |