Patent US4283078A successfully refreshed from Google Patents.
US4283078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible joint protector
Assignee: Individual
•
Filing: 1980-05-01
•
Granted: 1981-08-11
•
Expires: 2000-05-01
Abstract
Abstract A Flexible Joint Protector for use with steam pipes of the same or different diameters comprise multiple bellows where the bellows are of different diameters and arranged one within another and have sleeves on their outer sides. Clamps are used to secure the sleeves to the pipes.
Inventors
- 👤 Victor H. Ross
- 👤 Victor H. Ross, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:52
CPC Classifications
F; F16; F16L; F16L25/00; F16L25/10; F16L27/00; F16L27/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
151 words
A flexible joint protector for use with a pipe joint and comprising an assembly of several spaced individual accordian type bellows, each of said bellows being annular and of different outer diameters, said bellows positioned one within the other with the largest diameter bellows defining the outside of said assembly and the smallest of said bellows defining the inside of said assembly, each of said bellows formed of a pair of flat circular flexible members having central openings and joined at their outer peripheral edges, each of said individual bellows arranged in juxtaposition and joined to one another in the areas about their central openings, each of said bellows made of air impervious material, a pair of tubular sleeves secured to the joined areas about said central openings of said bellows in oppositely disposed outwardly extending relation thereto, clamps securing said sleeves to said pipes on either side of said joint.
Claim 2
Dependent Claim
151 words
A flexible joint protector for use with a pipe joint and comprising an assembly of several spaced individual accordian type bellows, each of said bellows being annular and of different outer diameters, said bellows positioned one within the other with the largest diameter bellows defining the outside of said assembly and the smallest of said bellows defining the inside of said assembly, each of said bellows formed of a pair of flat circular flexible members having central openings and joined at their outer peripheral edges, each of said individual bellows arranged in juxtaposition and joined to one another in the areas about their central openings, each of said bellows made of air impervious material, a pair of tubular sleeves secured to the joined areas about said central openings of said bellows in oppositely disposed outwardly extending relation thereto, clamps securing said sleeves to said pipes on either side of said joint.
Claim 3
Dependent Claim
22 words
The flexible joint protector of claim 1 wherein said bellows and sleeves are sewn and sealed to one another in sealing relation.
Claim 4
Dependent Claim
17 words
The flexible joint protector of claim 1 wherein said air impervious flexible material is neoprene coated nylon.
Claim 5
Dependent Claim
30 words
The flexible joint protector of claim 1 wherein each of said pairs of flat circular flexible members are made of at least two layers of said air impervious flexible material.
References Cited (Backward Citations)
US701936A
Cited
US1732721A
Cited
US2207146A
Cited
US2657075A
Cited
US3315704A
Cited
US3336950A
Cited
US3473828A
Cited
US3490794A
Cited
US3653690A
Cited
US4090726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-10 | 1985-02-09 | 1985-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-10 | 1989-02-09 | 1989-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-10 | 1993-02-09 | 1993-08-11 | $7700.00 | Window Closed / Lapsed |