US4065890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Framework joint
Assignee: Individual
•
Filing: 1976-12-08
•
Granted: 1978-01-03
•
Expires: 1996-12-08
Abstract
Abstract A framework comprising hollow rods connected at their ends by connecting members. The hollow rods and connecting members are secured by a novel bayonet connection.
Inventors
- 👤 Wolfgang Fenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:59
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/20; A; A47; A47F; A47F5/00; A47F5/10; A47F5/13; F21; F21S; F21S2/00; F21V; F21V17/00; F21V17/10; F21V17/14; F21V17/16; F21V17/164; F21V21/00; F21V21/34; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/342; Y10T403/343; Y10T403/344; Y10T403/70; Y10T403/7005; Y10T403/7007
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
155 words
A frame comprising a plurality of hollow rods (1,2) each of which has an inwardly directed annular flange (3) at each end; axially displaceable and rotatable guided sleeves (4) coaxial within said hollow rods at each end, said sleeves having an outwardly extending annular flange (5) at one end for engagement behind the flanges of said tubes, said sleeves having one or more circumferentially spaced dogs radially extending at the end opposite the annular flange; a plurality of hollow connecting members having two or more openings (10) for receiving said guided sleeves (4) associated with said tubes, said connecting members having associated with each opening a cylindrical flange (9) with circumferentially spaced guide ways (7,8) therein for receiving said dogs on said guided sleeves, such that the guided sleeve after being inserted in said opening, with dogs and guideway aligned, may be rotated placing the dogs behind the cylindrical flange thus forming a bayonet connection.
Claim 2
Dependent Claim
155 words
A frame comprising a plurality of hollow rods (1,2) each of which has an inwardly directed annular flange (3) at each end; axially displaceable and rotatable guided sleeves (4) coaxial within said hollow rods at each end, said sleeves having an outwardly extending annular flange (5) at one end for engagement behind the flanges of said tubes, said sleeves having one or more circumferentially spaced dogs radially extending at the end opposite the annular flange; a plurality of hollow connecting members having two or more openings (10) for receiving said guided sleeves (4) associated with said tubes, said connecting members having associated with each opening a cylindrical flange (9) with circumferentially spaced guide ways (7,8) therein for receiving said dogs on said guided sleeves, such that the guided sleeve after being inserted in said opening, with dogs and guideway aligned, may be rotated placing the dogs behind the cylindrical flange thus forming a bayonet connection.
Claim 3
Dependent Claim
131 words
A frame according to claim 1 in which springs bias the annular flanges of the sleeves and tubes axially apart and in which the cylindrical flanges associated with the openings in said hollow connecting members having gradually ascending (in the axial direction away from the opening) larger guide surfaces over which the dogs on the guided sleeves ride as the sleeves are rotated, sail cylindrical flanges having, at the end of the longer guide surfaces, recesses for receiving one of the dogs and to thereby resist easy rotation of said sleeves, the side of the recesses beyond the longer guide surfaces comprising a shorter axially ascending guide surface enabling the dogs to be rotated out of said recesses for disengagement by a torque great enough to overcome the axial spring bias.
Claim 4
Dependent Claim
31 words
The frame according to claim 1, in which the tubes (1,2) are releasably assembled from two tube portions (1,2) that are separated by planes running parallel to the longitudinal axis (L).
Claim 5
Dependent Claim
33 words
A frame according to claim 3, in which the annular flange (5) of the sleeve (4) is subdivided into four sections of equal length by four recesses in an axial face thereof (17).
Claim 6
Dependent Claim
38 words
A frame according to claim 1, in which the faces of the annular flanges (3) of the tubes have a centering bore (18) for receiving centering flanges (19) projecting from the cylindrical flanges (9) of the coupling members.
Claim 7
Dependent Claim
72 words
A frame according to claim 5, further comprising a ring (20) mounted on the centering flange (19), said ring having an internal nose (21) for engagement in a recess (21') of the centering flange, the said recess being twice as wide as the nose, and said ring having an external nose (22) for striking against a projection (23) on the radially running outer surface of the annular flange (3) of the tube.
Claim 8
Dependent Claim
31 words
A frame according to claim 3, in which the tube (1,2) is divided by planes that run parallel to the longitudinal axis having an included angle α (alpha) of about 120°.
Claim 9
Dependent Claim
95 words
A frame according to claim 7, in which the inner side of the larger tube portion (1) has projections (24,25) to which the smaller tube portion (2) may be clipped by means of resilient clip noses (26) and the annular flange (3) may be bolted, and to which a fluorescent lamp (27), current bars (28,28') of different sizes, guide rails (30,32) for drapery hooks (31) and garment hooks (33), as well as doors (34) may be selectively attached and may be fastened by means of conventional bolt straps (35) which engage behind the projections (25,25).
Claim 10
Dependent Claim
35 words
A frame according to claim 8, in which the inside projections of the larger tube portion (1) consist of longitudinally continuous contoured ridges which are made by the extrusion process together with the tube portion.
Claim 11
Dependent Claim
47 words
A frame according to claim 5, in which a spacer ring is mounted on the centering flanges (19,19) of two adjacent connecting members, the said ring, together with an inserted sleeve (4) and a mounted Woodruff key spring, producing a bayonet union of the two connecting members.
Claim 12
Dependent Claim
72 words
A frame according to claim 5, in which a cover plate (40) is mounted with an annular groove (41) on the centering flange (19) and closes off an opening (10), the said cover plate having two dogs (42,42) which are insertable into the guide grooves (7,8) of the internal flange (9) of the opening and are rotatable for the purpose of forming a bayonet union behind the internal flange of the opening.
Claim 13
Dependent Claim
28 words
A frame according to claim 1, in which the connecting members comprise half shells (11,12) which are identical in design whereby they may be made by pressure casting.
Claim 14
Dependent Claim
31 words
A frame according to claim 11, in which square plates (43) are clamped firmly at all four corners by the cover plates (40) which are secured to the connecting members (11,12).
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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) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |