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US3932047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connecting systems
Assignee: Individual
•
Filing: 1975-03-03
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Granted: 1976-01-13
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Expires: 1995-03-03
Abstract
Abstract In a connecting system for connecting a first hollow tubular member to a second member the first member is provided with a circumferentially-extending slot of a longitudinal extent sufficient to receive the second member therein, and the second member is provided with an arcuate slot of a width to receive the sidewall of the first member, the first member sidewall being engaged in the second member arcuate slot by rotation of the former about its longitudinal axis.
Inventors
- 👤 James Crossan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:52
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/40; F16B12/42; F16B9/00; F16B9/09; Y; Y10; Y10T; Y10T403/00; Y10T403/38; Y10T403/46; Y10T403/71; Y10T403/7117
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
97 words
A connecting system for connecting together a first hollow tubular member having a longitudinal axis and a second member, wherein the first member has in the circumferential wall thereof a circumferentially-extending slot of a longitudinal extent to receive the second member therein, and the second member has therein an arcuate slot of a width to receive the first member side wall therein upon reception of the second member in the first member slot, the first member side wall being engagable in the second member arcuate slot by rotation of the first member about the said longitudinal axis.
Claim 2
Dependent Claim
97 words
A connecting system for connecting together a first hollow tubular member having a longitudinal axis and a second member, wherein the first member has in the circumferential wall thereof a circumferentially-extending slot of a longitudinal extent to receive the second member therein, and the second member has therein an arcuate slot of a width to receive the first member side wall therein upon reception of the second member in the first member slot, the first member side wall being engagable in the second member arcuate slot by rotation of the first member about the said longitudinal axis.
Claim 3
Dependent Claim
21 words
A system as claimed in claim 1, wherein the said first member is a cylinder of uniform diameter along its length.
Claim 4
Dependent Claim
17 words
A system as claimed in claim 1, wherein the said second member is a flat planar member.
Claim 5
Dependent Claim
17 words
A system as claimed in claim 1, wherein the said circumferential slot extends over 180° of arc.
Claim 6
Dependent Claim
17 words
A system as claimed in claim 1, wherein the said arcuate slot extends over 90° of arc.
Claim 7
Dependent Claim
21 words
A system as claimed in claim 1, and including means for closing the open end or ends of the tubular member.
Claim 8
Dependent Claim
39 words
A system as claimed in claim 1, wherein the part of the second member that is received in the said circumferential slot is of a shape to fill the entire internal cross-section of the first member at that location.
Claim 9
Dependent Claim
47 words
A system as claimed in claim 1, wherein the second member is provided with a spring-loaded retaining member engaging a longitudinal edge of the circumferential slot upon connection of the two members to prevent disconnection of the members without manual disengagement of the member from the edge.
Claim 10
Dependent Claim
57 words
A system as claimed in claim 7, wherein the part of the second member that is received in the circumferential slot is provided with a spring-loaded retaining member engaging a longitudinal edge of the circumferential slot upon connection of the two members to prevent disconnection of the members without manual disengagement of the member from the edge.
Claim 11
Dependent Claim
41 words
A system as claimed in claim 1, wherein the said second member comprises a planar top part and a flange part spaced from and parallel to the said top part, and the said arcuate slot is provided in the flange part.
Claim 12
Dependent Claim
74 words
A system as claimed in claim 1, wherein the said second member comprises a planar top part and a flange part spaced from and parallel to the said top part, the said arcuate slot is provided in the flange part, and the length of the part of the first member between the flange part and the top part is such that the corresponding end of the first member is engaged with the top part.
Claim 13
Dependent Claim
19 words
A system as claimed in claim 1, and comprising two first members each connected with a common second member.
Claim 14
Dependent Claim
19 words
A system as claimed in claim 1, and comprising a single common first member connected to two second members.
Claim 15
Dependent Claim
18 words
A system as claimed in claim 1, and comprising two first members each connected with two second members.
Claim 16
Dependent Claim
30 words
A system as claimed in claim 1, and comprising two first members, wherein rotations in opposite directions are required for engagement of the first member in their respective second members.
Claim 17
Dependent Claim
36 words
A system as claimed in claim 1, and comprising two first members, having a flexible member connected there-between, wherein rotations in opposite directions are required for engagement of the first members in their respective second members.
References Cited (Backward Citations)
US1551625A
Cited
US1681218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-12 | 1979-07-14 | 1980-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-12 | 1983-07-14 | 1984-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-12 | 1987-07-14 | 1988-01-13 | $7700.00 | Window Closed / Lapsed |