Patent US2876126A successfully refreshed from Google Patents.
US4435006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pressurized connecting device
Assignee: YAMAMOTO SUIATSU KOGYOSHO NO 8-8 SHOMOTO-CHO 2-CHOME TOYONAKA-SHI OSAKA JAPAN KK
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Filing: 1981-05-01
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Granted: 1984-03-06
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Expires: 2001-05-01
Abstract
Abstract An automatic pressurized connecting device having a wide angle of attachment and in which thermal seizure is eliminated. The device includes a main frame mounted on wheels which run on rails, a rotary shaft fitted on the main frame, a first bracket mounted on the rotary shaft, and the body rockably coupled to the first bracket. A main shaft is inserted into a central portion of the body and the high pressure water supplying rotary universal joint is coupled to a front end portion of the main shaft. A seal plug is coupled to a front end portion of the universal joint. A motor is provided on a second bracket for rotating the main shaft. A high pressure water supplying port in the body communicates with a water supplying port formed in a front end portion of the main shaft.
Inventors
- 👤 Katsumi Ishigaki
- 👤 Kazuo Sasaki
- 👤 Takumi Fukumura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:13
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/62; F16L37/58; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5367
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
198 words
An automatic pressurized connecting device comprising: a main frame with wheels adapted to run on rails; a rotary shaft fitted in said main frame; a first bracket mounted on said rotary shaft; a body rockably coupled to said first bracket for balancing weights of front and rear parts of said bracket; a main shaft inserted into a central portion of said body; a high pressure water supplying rotary universal joint coupled to a front end portion of said main shaft; a seal plug adapted to be screwed into a test pipe coupled to a front end portion of said high pressure water supplying rotary universal joint; a motor mounted on a second bracket secured to said body, said motor being coupled through a coupling to a rear end portion of said main shaft; said body having a high pressure water supplying port communicating with a water supplying port formed in a front portion of said main shaft; a third bracket and at least a pair of fourth brackets mounted on said main frame, said third bracket being secured to a support holding said rotary universal joint; and supporting cylinders secured to said fourth brackets and to said support.
Claim 2
Dependent Claim
198 words
An automatic pressurized connecting device comprising: a main frame with wheels adapted to run on rails; a rotary shaft fitted in said main frame; a first bracket mounted on said rotary shaft; a body rockably coupled to said first bracket for balancing weights of front and rear parts of said bracket; a main shaft inserted into a central portion of said body; a high pressure water supplying rotary universal joint coupled to a front end portion of said main shaft; a seal plug adapted to be screwed into a test pipe coupled to a front end portion of said high pressure water supplying rotary universal joint; a motor mounted on a second bracket secured to said body, said motor being coupled through a coupling to a rear end portion of said main shaft; said body having a high pressure water supplying port communicating with a water supplying port formed in a front portion of said main shaft; a third bracket and at least a pair of fourth brackets mounted on said main frame, said third bracket being secured to a support holding said rotary universal joint; and supporting cylinders secured to said fourth brackets and to said support.
Claim 3
Dependent Claim
137 words
The device as claimed in claim 1 in which said high pressure water supplying rotary universal joint comprises: a first joint arm having a throughhole along the central axis thereof; a second joint arm having a throughhole along the central axis thereof; a joint ball having a throughhole in a central portion thereof; pins coupling said joint arms to said joint ball in such a manner that said joint arms are coaxial and are arranged crosswise and said throughholes communicate with one another; seal packings disposed on contact surfaces between axial portions of said joint arm and a central portion of said joint ball and between a central portion of said joint ball and axial portions of said joint arm, respectively, at least one of said joint arm being adapted to be coupled to a coupling pipe.
Claim 4
Dependent Claim
15 words
The device as claimed in claim 1 wherein said motor comprises a hydraulic pressure motor.
Claim 5
Dependent Claim
30 words
The device as claimed in claim 2 further comprising a chuck for coupling said high pressure water supplying rotary universal joint to said front end portion of said main shaft.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |