US3574367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling
Assignee: Individual
•
Filing: 1968-09-12
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Granted: 1971-04-13
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Expires: 1988-09-12
Abstract
Abstract A coupling which comprises two clamping members insertable into the open-ended chamber of a first element and two locking members located between the clamping members and having hooks extending through an aperture provided in a wall of a second element. A bolt can move the locking members apart to thereby urge the clamping members against the first element and to engage the hooks with that side of the wall which faces away from the chamber. The clamping members and the locking members are provided with cams and followers or analogous tensioning devices which cooperate to urge the hooks toward the clamping members when the locking members move apart whereby the wall is pressed against the clamping members and/or against the first element.
Inventors
- 👤 Johannes Jankowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:25
CPC Classifications
B; B62; B62D; B62D33/00; B62D33/04; B62D33/044; E; E04; E04B; E04B2/00; E04B2/74; E04B2/76; E04F; E04F11/00; E04F11/18; E04F11/181; E04F11/1817; E06; E06B; E06B3/00; E06B3/96; E06B3/964; E06B3/968; E06B3/972; E06B3/98; F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/0446; F16B7/0473; F16B2200/00; F16B2200/20; F16B2200/205; Y; Y10; Y10S; Y10S403/00; Y10S403/10; Y10T; Y10T403/00; Y10T403/55; Y10T403/557; Y10T403/59; Y10T403/591; Y10T403/76
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
161 words
A coupling for establishing a connection between a structural element which is provided with an open-ended chamber and an apertured wall adapted to be placed adjacent to the open end of the chamber so that one of its sides faces away from the element, comprising a clamping unit having two clamping members in the chamber of the structural element; a locking unit comprising a pair of locking members disposed between said clamping members and movable between first and second positions in which they are respectively located at a first and a second distance from each other, said locking members having front portions insertable through the apertured wall in the first positions and overlying the one side of the wall in the second positions thereof; actuating means for moving the locking members between said positions; and tensioning means provided on said members to urge said front portions toward said clamping members in response to movement of locking members toward said second positions.
Claim 2
Dependent Claim
161 words
A coupling for establishing a connection between a structural element which is provided with an open-ended chamber and an apertured wall adapted to be placed adjacent to the open end of the chamber so that one of its sides faces away from the element, comprising a clamping unit having two clamping members in the chamber of the structural element; a locking unit comprising a pair of locking members disposed between said clamping members and movable between first and second positions in which they are respectively located at a first and a second distance from each other, said locking members having front portions insertable through the apertured wall in the first positions and overlying the one side of the wall in the second positions thereof; actuating means for moving the locking members between said positions; and tensioning means provided on said members to urge said front portions toward said clamping members in response to movement of locking members toward said second positions.
Claim 3
Dependent Claim
54 words
A coupling as defined in claim 1, wherein said tensioning means comprisEs cams provided on the members of one of said units and followers provided on the members of the other unit and each engaging with one of said cams during at least a portion of movement of said locking members toward second positions.
Claim 4
Dependent Claim
20 words
A coupling as defined in claim 1, wherein said tensioning means are at least slightly spaced from said front portions.
Claim 5
Dependent Claim
35 words
A coupling as defined in claim 1, wherein at least one member of at least one of said units is deformable and undergoes deformation in response to movement of locking members toward said second positions.
Claim 6
Dependent Claim
17 words
A coupling as defined in claim 4, wherein said deformable member is one of said clamping members.
Claim 7
Dependent Claim
28 words
A coupling as defined in claim 1, wherein said tensioning means comprises abutments pairs of abutments provided on each of said clamping members and the adjoining locking members.
Claim 8
Dependent Claim
15 words
A coupling as defined in claim 2, wherein said tensioning means comprises sloping cam faces.
Claim 9
Dependent Claim
52 words
A coupling as defined in claim 1, wherein the members of one of said units are of arcuate shape in the first positions of said locking members and consist of deformable material so that they can undergo deformation and flatten out in response to movement of locking members toward said second positions.
Claim 10
Dependent Claim
34 words
A coupling as defined in claim 1, further comprising fastener means connecting said clamping members to each other so that both said clamping members can be inserted into the structural element as a unit.
Claim 11
Dependent Claim
43 words
A coupling as defined in claim 1, further comprising means for connecting said locking members to each other, at least in the first positions thereof, so that the thus connected locking members can move as a unit with reference to the structural element.
Claim 12
Dependent Claim
22 words
A coupling as defined in claim 1, wherein the members of at least one of said units are integral with each other.
Claim 13
Dependent Claim
22 words
A coupling as defined in claim 1, further comprising means for biasing at least one of said locking members to first position.
Claim 14
Dependent Claim
28 words
A coupling as defined in claim 12, wherein said biasing means comprises resilient elements each interposed between one of said locking members and one of said clamping members.
Claim 15
Dependent Claim
56 words
A coupling as defined in claim 1, wherein said tensioning means comprises first groups of teeth provided on said clamping members and second groups of teeth provided on said locking members, each second group of teeth engaging one first group of teeth at least during a portion of movement of said locking members to second positions.
Claim 16
Dependent Claim
47 words
A coupling as defined in claim 14, wherein said tensioning means further comprises cooperating cams and followers provided on said locking members and the adjoining clamping members, said followers being disengaged from the respective cams in response to engagement between said first and second groups of teeth.
Claim 17
Dependent Claim
34 words
A coupling as defined in claim 1, wherein said clamping members are provided with unevennesses which bear against the structural element at least in response to movement of locking members to said second positions.
Claim 18
Dependent Claim
21 words
A coupling as defined in claim 1, wherein at least one of said clamping members is fixed to the structural element.
Claim 19
Dependent Claim
21 words
A coupling as defined in claim 1, wherein at least one of said clamping members is integral with the structural element.
Claim 20
Dependent Claim
28 words
A coupling as defined in claim 1, wherein said clamping members comprise front portions which bear against the apertured wall in the second positions of said locking members.
Claim 21
Dependent Claim
36 words
A coupling as defined in claim 19, wherein the front portions of said clamping members are flush with the open end of the chamber in the structural element in the second positions of said locking members.
Claim 22
Dependent Claim
35 words
A coupling as defined in claim 19, wherein the front portions of said clamping members extend beyond the open end of the chamber in the structural element in the second positions of said locking members.
Claim 23
Dependent Claim
25 words
A coupling as defined in claim 1, wherein said actuating means comprisEs an actuating member which is accessible, through an opening in the structural element.
Claim 24
Dependent Claim
41 words
A coupling as defined in claim 1, wherein said actuating means comprises an externally threaded actuating member which meshes with one of said locking members and is rotatable to thereby move the other clamping member away from said one clamping member.
Claim 25
Dependent Claim
32 words
A coupling as defined in claim 1, wherein said actuating means comprises an explosive charge which can be set off by heating to thereby move the locking members to said second positions.
Claim 26
Dependent Claim
29 words
A coupling as defined in claim 1, wherein said front portions are arranged to extend through a rounded aperture of the wall in first positions of said locking members.
Claim 27
Dependent Claim
28 words
A coupling as defined in claim 1, wherein the clamping members have convex outer faces so that they can be fitted into a chamber of substantially circular outline.
Claim 28
Dependent Claim
33 words
A coupling as defined in claim 1, wherein said clamping members have concave front face adapted to engage a convex second side of the wall in the second positions of said locking members.
Claim 29
Dependent Claim
33 words
A coupling as defined in claim 1, wherein the apertured wall forms part of an intermediate element by means of which the structural element is connectable with at least one second structural element.
Claim 30
Dependent Claim
19 words
A coupling as defined in claim 28, wherein the intermediate element is a body of circular or polygonal outline.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |