US3858990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube holder and interconnector system
Assignee: Individual
•
Filing: 1973-01-29
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Granted: 1975-01-07
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Expires: 1993-01-29
Abstract
Abstract A tube holder for connecting a tube to an interconnector which has clamping dogs, and comprising a base one end of which carries rigid clamping lugs which are adapted to engage the clamping dogs on said inconnector to clamp said holder and said interconnector together when said holder and said interconnector are placed together and relatively rotated, and a resilient intermediate component which can be expanded to engage the internal wall of said tube by an expander actuated by a tension screw which has a head located at the same end of said tube holder as said clamping lugs.
Inventors
- 👤 Otto Busselmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:39
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/0446; F16B12/00; F16B12/40; F16B2200/00; F16B2200/20; Y; Y10; Y10T; Y10T403/00; Y10T403/55; Y10T403/557; Y10T403/70; Y10T403/7005; Y10T403/7007
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
192 words
A tube holder and interconnector system for the assembly and dismantling of frames and structures made up of at least two profiled tubes comprising: multi-sided, bridging interconnector means (1) for connecting the tubes together having an opening (6) therein with dogs (8) associated therewith in at least two of its sides; and at least two tube holders (2,2''), each comprising a base (9, 109, 9'', 309, 409, 509), one end of which carries rigid clamping lugs (15, 115, 315, 415, 515); a tension screw (18, 118, 18'', 318, 418, 518) having a head located at the same end of said tube holder as said clamping lugs; an expander (12, 112, 12'', 312, 412, 512) actuated by said tension screw; and an intermediate component (10, 110, 10'', 310, 410, 510) located between said base and said expander and being expandable to engage the internal wall of the tube by said expander being actuated by said screw; said tube holders being designed to be clamped to said interconnector means by means of inserting said lugs into said openings and rotating said lugs with respect to said dogs until said lugs and said dogs interlock.
Claim 2
Dependent Claim
192 words
A tube holder and interconnector system for the assembly and dismantling of frames and structures made up of at least two profiled tubes comprising: multi-sided, bridging interconnector means (1) for connecting the tubes together having an opening (6) therein with dogs (8) associated therewith in at least two of its sides; and at least two tube holders (2,2''), each comprising a base (9, 109, 9'', 309, 409, 509), one end of which carries rigid clamping lugs (15, 115, 315, 415, 515); a tension screw (18, 118, 18'', 318, 418, 518) having a head located at the same end of said tube holder as said clamping lugs; an expander (12, 112, 12'', 312, 412, 512) actuated by said tension screw; and an intermediate component (10, 110, 10'', 310, 410, 510) located between said base and said expander and being expandable to engage the internal wall of the tube by said expander being actuated by said screw; said tube holders being designed to be clamped to said interconnector means by means of inserting said lugs into said openings and rotating said lugs with respect to said dogs until said lugs and said dogs interlock.
Claim 3
Dependent Claim
44 words
A tube holder and interconnector system as claimed in claim 1 in which said clamping lugs are rigidly connected to said base and in which said screw passes through said base and is seated with said head against said end carrying said clamping lugs.
Claim 4
Dependent Claim
64 words
A tube holder and interconnector system as claimed in claim 2, in which said tube holder further includes an anchor (11, 111, 311, 411, 511), said clamping lugs being integrally part of said anchor, and said anchor being rigidly connected to said base; and wherein the shape of said lugs and said anchor correspond with the profile of said openings provided in said interconnector.
Claim 5
Dependent Claim
25 words
A tube holder and interconnector system as claimed in claim 3 in which said clamping lugs and said clamping dogs have the same radial dimensions.
Claim 6
Dependent Claim
26 words
A tube holder and interconnector system as claimed in claim 4 in which said clamping lugs and said dogs are engaged on diagonals of said interconnector.
Claim 7
Dependent Claim
26 words
A tube holder and interconnector system as claimed in claim 2 in which said screw head is located within the area defined by said clamping lugs.
Claim 8
Dependent Claim
61 words
A tube holder and interconnector system as claimed in claim 1 in which said expander is conical in shape in its axial plane and has tapered surfaces, and in which said intermediate component includes several spreader arms which also have tapered, internal surfaces which are engaged by the tapered surfaces on the expander when said expander is actuated by said screw.
Claim 9
Dependent Claim
42 words
A tube holder and interconnector system as claimed in claim 7 in which said expander has a pocket extending at right angles to the axis of said screw and in which pocket a nut is located which is threaded on said screw.
Claim 10
Dependent Claim
35 words
A tube holder and interconnector system as claimed in claim 7 in which four spreader arms are provided and wherein said expander in its radial plane is in the shape of a regular octagonal pyramid.
Claim 11
Dependent Claim
57 words
A tube holder and interconnector system as claimed in claim 1 in which a second intermediate component is provided which can be expanded in a plane perpendicular to the axis of the tube in which it is to be used, said plane being spaced apart axially from the perpendicular plane of expansion of said first intermediate component.
Claim 12
Dependent Claim
45 words
A tube hOlder and interconnector system as claimed in claim 10 in which said base has chamfered faces, and said second intermediate component being provided by spreader arms formed on said expander, said expander spreader arms having chamfered faces which engage those on the base.
Claim 13
Dependent Claim
28 words
A tube holder and interconnector system as claimed in claim 11 in which said expander with spreader arms is made from one piece of a synthetic plastics material.
Claim 14
Dependent Claim
38 words
A tube holder and interconnector system as claimed in claim 11 in which said first intermediate component is provided by several spreader arms on said base which are arranged at 45* to said spreader arms on said expander.
Claim 15
Dependent Claim
30 words
A tube holder and interconnector system as claimed in claim 13 in which said spreader arems of said base are arranged in gaps between said spreader arms of said expander.
Claim 16
Dependent Claim
74 words
A tube holder and interconnector system as claimed in claim 1 in which said expander comprises a resilient body and there is included a tensioner plate on said expander, and wherein said intermediate component comprises several spreader arms which surrounds said expander, and which, when said tension screw is actuated, is compressed by said tensioner plate and acts with its peripheral surface to expand said spreader arms of said intermediate component which surrounds it.
Claim 17
Dependent Claim
25 words
A tube holder and interconnector system as claimed in claim 15 in which said spreader arms are formed by L-shaped cut-outs in said intermediate component.
Claim 18
Dependent Claim
30 words
A tube holder and interconnector system as claimed in claim 15 in which said spreader arms are formed by cut-outs directed axially towards one another in said surrounding intermediate component.
Claim 19
Dependent Claim
48 words
A tube holder and interconnector system as claimed in claim 15 in which there is further included a tension sleeve which carries said clamping lug and wherein said expander surrounds said tension sleeve, said tension plate having a guide shoulder which guides said plate on said tension sleeve.
Claim 20
Dependent Claim
21 words
A tube holder and interconnector system as claimed in claim 1 in which said intermediate component has several U-shaped spreader arms.
Claim 21
Dependent Claim
32 words
A tube holder and interconnector system as claimed in claim 1 wherein said interconnector is a cube and has an opening with the dogs associated therewith on everyone of its six faces.
References Cited (Backward Citations)
US1762776A
Cited
US2643581A
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US2972495A
Cited
US3545796A
Cited
US3563581A
Cited
US3719376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |