US4250928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for holding nested pipes to one another
Assignee: Kubota Corp
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Filing: 1979-11-15
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Granted: 1981-02-17
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Expires: 1999-11-15
Abstract
Abstract A device for holding nested pipes to one another radially and axially thereof each at one end, comprising a substantially U-shaped hook member engageable with axially opposite side faces of an inner flange on one end of an outer pipe and also engageable at its bottom with an outer peripheral shoulder portion of one end of an inner pipe, an engaging member engageable with one end face of the inner pipe, and screw means for fastening these two members to each other. Like the hook member, the engaging member is preferably U-shaped. For holding at least three pipes together, an engaging member substantially resembling the hook member is used for the intermediate pipe.
Inventors
- 👤 Munehiro Nishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:59
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/20; F; F16; F16B; F16B7/00; F16B7/04; F16B7/0406; F16B7/0413; Y; Y10; Y10S; Y10S206/00; Y10S206/821; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879; Y10T403/00; Y10T403/16; Y10T403/1608
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
81 words
A device for holding nested pipes to one another comprising: a hook member having a bent portion engageable with a projection projecting radially inwardly from one end of an outer pipe, from opposite sides axially thereof and further engageable with an outer peripheral shoulder portion of one end of an inner pipe, an engaging member at least engageable with one end face of the inner pipe, and screw means for fastening the hook member and the engaging member to each other.
Claim 2
Independent Claim
81 words
A device for holding nested pipes to one another comprising: a hook member having a bent portion engageable with a projection projecting radially inwardly from one end of an outer pipe, from opposite sides axially thereof and further engageable with an outer peripheral shoulder portion of one end of an inner pipe, an engaging member at least engageable with one end face of the inner pipe, and screw means for fastening the hook member and the engaging member to each other.
Claim 3
Dependent Claim
44 words
A device as defined in claim 1 wherein the hook member is substantially U-shaped, and the screw means has one element fixedly joined to the outer surface of one free end of the hook member with its axis positioned perpendicular to the outer surface.
Claim 4
Dependent Claim
49 words
A device as defined in claim 1 wherein the hook member has an extension extending from one end of the bent portion outward axially of the pipe to a position close to the engaging member and having one element of the screw means fixedly joined to its forward end.
Claim 5
Dependent Claim
58 words
A device as defined in claim 1 wherein the hook member has an extension extending from one end of the bent portion outward axially of the pipe to a position close to the engaging member and integrally provided at its forward end with a lug having a bolt hole and engageable with one element of the screw means.
Claim 6
Dependent Claim
47 words
A device as defined in claim 1 wherein the engaging member comprises a planar plate engageable with one end face of the inner pipe and having fixedly joined thereto a member for preventing the plate from turning by engagement with the outer periphery of the inner pipe.
Claim 7
Dependent Claim
40 words
A device as defined in claim 1 wherein the engaging member is a substantially L-shaped member engageable with the outer side face and the inner periphery of an annular projection radially inwardly projecting from one end of the inner pipe.
Claim 8
Dependent Claim
33 words
A device as defined in claim 1 wherein the engaging member comprises a hook having a bent portion engageable with an annular projection radially inwardly projecting from one end of the inner pipe.
Claim 9
Dependent Claim
45 words
A device as defined in claim 1 wherein the screw means comprises a nut secured to the hook member and a bolt insertable into a bolt hole in the engaging member to engage in the nut with a head in engagement with the engaging member.
Claim 10
Dependent Claim
55 words
A device as defined in claim 1 wherein the screw means comprises a bolt having a head secured to the hook member and a shank insertable through a bolt hole in the engaging member and a nut engageable with a surface of the engaging member remote from the hook member and engageable with the bolt.
Claim 11
Dependent Claim
90 words
A device as defined in claim 1 for holding together an outer pipe, at least one intermediate pipe and an inner pipe as nested, wherein the engaging member comprises a first engaging element engageable with one end face of the intermediate pipe and a second engaging element engageable with one end face of the inner pipe, the first engaging element having an engaging portion at least engageable with an outer peripheral shoulder portion of one end of another intermediate pipe positioned inside said intermediate pipe or of the inner pipe.
Claim 12
Dependent Claim
38 words
A device as defined in claim 10 wherein the engaging portion of the first engaging element is U-shaped and engageable with a projection radially inwardly projecting from one end of the intermediate pipe from opposite sides axially thereof.
Claim 13
Dependent Claim
50 words
A device as defined in claim 10 wherein the first engaging element has fixedly joined thereto one element of screw means for fastening to the first engaging element another first engaging element or the second engaging element engageable with one end face of the pipe positioned inside said intermediate pipe.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-17 | 1984-08-18 | 1985-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-17 | 1988-08-18 | 1989-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-17 | 1992-08-18 | 1993-02-17 | $7700.00 | Window Closed / Lapsed |