Valves and valve actuation – With correlated flow path – Valve operated by joining flow path sections
Reexamination Certificate
1998-12-17
2001-08-28
Chambers, A. Michael (Department: 3753)
Valves and valve actuation
With correlated flow path
Valve operated by joining flow path sections
C137S614030, C137S614050
Reexamination Certificate
active
06279874
ABSTRACT:
The invention relates to a couping for connecting hoses or the like for a medium under pressure in accordance with the preamble to claim
1
.
Detachable couplings for connecting hoses or the like for pressure media are used extensively in industry and handicrafts, especially couplings for compressed air. Such couplings are often used for connecting a compressed air tool or the like to a compressed air source. The female part of the coupling has a valve element which makes it possible to keep the hose leading to the female part continuously under pressure. The nipple of the coupling is connected to a hose or the like which leads to a compressed air tool. When changing tools or detaching the tool from the compressed air source for some other reason, there is often relatively high pressure there. When the nipple is disconnected from the female part, there is powerful recoil throwing the nipple in the hose connected thereto. There is also a loud noise at disconnection. Both the recoil force and the sound are disadvantages which should be removed for,among other things, reasons of safety.
The purpose of the present invention is to achieve a coupling of the type described by way of introduction which removes the above mentioned disadvantages and makes possible disconnection of the nipple from the female part while the coupling is under pressure, without any recoil or noise.
This is achieved according to the invention by means of a coupling which is characterized by the features disclosed in the characterizing portion of claim
1
.
Suitable embodiments of the coupling according to the invention are disclosed in the subclaims.
REFERENCES:
patent: 2888278 (1959-05-01), Torres et al.
patent: 2952482 (1960-09-01), Torres
patent: 3680591 (1972-08-01), Vik
patent: 4124228 (1978-11-01), Morrison
patent: 4483510 (1984-11-01), Palau et al.
patent: 4564042 (1986-01-01), Ekman
patent: 4685490 (1987-08-01), Medvick et al.
patent: 4691941 (1987-09-01), Rabushka et al.
patent: 4863201 (1989-09-01), Carstens
patent: 4982761 (1991-01-01), Kreczko et al.
patent: 5123448 (1992-06-01), Kjellberg et al.
patent: 5179976 (1993-01-01), Boland et al.
patent: 5323812 (1994-06-01), Wayne
patent: 5337782 (1994-08-01), Wilcox
patent: 5482083 (1996-01-01), Jenski
patent: 5535985 (1996-07-01), Larbuisson
patent: 5547166 (1996-08-01), Engdahl
patent: 5592970 (1997-01-01), Stucchi et al.
patent: 470452 (1994-04-01), None
patent: 95025979 (1997-01-01), None
Bo Erik NYBERG
Chambers A. Michael
LandOfFree
Coupling for hoses or the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coupling for hoses or the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coupling for hoses or the like will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2455433