US326549A - Check-valve - Google Patents

Check-valve Download PDF

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US326549A
US326549A US326549DA US326549A US 326549 A US326549 A US 326549A US 326549D A US326549D A US 326549DA US 326549 A US326549 A US 326549A
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Prior art keywords
valve
check
seat
pipe
wedge
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Expired - Lifetime
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/03Check valves with guided rigid valve members with a hinged closure member
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7504Removable valve head and seat unit
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7898Pivoted valves

Description

(ModeL) J. DBSTE.

CHECK VALVE. No. 326,549. X Patented Sept. 22, 1885 f PE- E 17- I M INVENTUR'.

UNITED STATES PATENT OFFICE.

JULIAN DESTE, OF MEDFORD, MASSACHUSETTS.

CH EC K-VALVE.

SPECIFICATION forming part of Letters Patent No. 326,549, dated September 22, 1885.

Application filed November 19, 1884.

To all whom it may concern.-

Be it known that I, J ULIAN' DESTE, asubject of her Britanic Majesty, and a resident of Medford, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Check-Valves, of which the followingis a specification.

The object of my invention is to provide a check-valve so constructed and placed in the pipe that the valve and seat, although making an absolutely tight joint in said pipe, may be easily removed therefrom, when desired, without disturbing any portion of the pipe itself.

One form of my improved check-valve is shown in the accompanying drawings, in which Figure l is a vertical section of pipe and check-valve in position. Fig. 2 is a top plan of check-valve in position in the pipe, the pipe being cut in section on line y g of Fig. 1. Fig. 8 is a vertical section of pipe and check'valve on line :0 w of Fig. 1. Figs. 4 and 5 are details of check-valve and seat removed from the pipe. Figs. 6and 7 are details of a peculiarly-shaped wedge with two arms which hold the check-valve and seat in position in the pipe.

The same letters indicate similar parts in the different drawings. 7

A is that portion of a pipe, of metal or other suitable material, in which the check-valve and seat are to be placed. It is provided with the usual cap screwed on air-and-steam tight.

Blis the valve-seat, which has a smooth lower surface fitting closely to a corresponding annular surface in the pipe. The upper surface of the valve-seat is an inclined plane, and on this the valve 0 rests.

D represents two side lugs or shoulders formed 011 the inside of the pipe, and against (ModeL) them press the upper edges of the two-armed wedge E, the lower edges pressing against the outer rim of the seat B.

After the valve and seat are put inside the pipe in position through the opening covered by the cap before mentioned, the wedge E is put in and driven home, and, by the close pressure of its arms between the lugs D and the valve-seat B, holds the valve and seat firmly in place, making aperfectly tight joint.

When it is desired to remove the seat and valve for any cause, it is done by turning a screw, F, which is threaded through the central portion of the two-armed wedge E, and bears against the outer rim of the valve seat B. It is obvious that by turning this screw F inward toward the valve-seat, which resists all advance in that direction, the wedge E is drawn slightly outward, enough to relieve its pressure upon the lugs and valve-seat, and it may then be easily drawn out by hand.

The advantages of my improved check-valve would seem to be obvious without further explanation.

I claiml. A loose check-valve and seat hinged upon each other, formed separately from the pipe, and provided with a wedge, E,- for holding said valve and seat in the pipe to make a steam-tight joint, and a screw, F, for removing said wedge, as herein described and shown.

2. The two-armed wedge E, provided with the screw F threaded through the same, and a fixed bearing for said screw, as herein described, and for the purposes specified.

JULIAN DESTE.

Witnesses:

I. G. MARSTON, W. P. PREBLE, Jr.

US326549D Check-valve Expired - Lifetime US326549A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763287A (en) * 1952-11-15 1956-09-18 Crane Co Swing check valve
US2801751A (en) * 1955-03-02 1957-08-06 Marvel Eng Co High pressure valved filters
US3257045A (en) * 1964-11-03 1966-06-21 Carpentier Urgel Ramual Dust trap and valve therefor
US4508139A (en) * 1984-04-30 1985-04-02 Teumer Henry E Top-entry check valve
US5143112A (en) * 1991-09-18 1992-09-01 Scaramucci John P Top-entry check valve with cartridge secured by threaded projections
US5143113A (en) * 1991-09-18 1992-09-01 Scaramucci John P Top-entry check valve with cartridge secured by projections
US5251657A (en) * 1991-09-18 1993-10-12 Scaramucci John P Top-entry check valve with cartridge secured by projections
US5713389A (en) * 1995-08-24 1998-02-03 Fmc Corporation Check valve and check valve seat

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763287A (en) * 1952-11-15 1956-09-18 Crane Co Swing check valve
US2801751A (en) * 1955-03-02 1957-08-06 Marvel Eng Co High pressure valved filters
US3257045A (en) * 1964-11-03 1966-06-21 Carpentier Urgel Ramual Dust trap and valve therefor
US4508139A (en) * 1984-04-30 1985-04-02 Teumer Henry E Top-entry check valve
US5143112A (en) * 1991-09-18 1992-09-01 Scaramucci John P Top-entry check valve with cartridge secured by threaded projections
US5143113A (en) * 1991-09-18 1992-09-01 Scaramucci John P Top-entry check valve with cartridge secured by projections
US5251657A (en) * 1991-09-18 1993-10-12 Scaramucci John P Top-entry check valve with cartridge secured by projections
US5713389A (en) * 1995-08-24 1998-02-03 Fmc Corporation Check valve and check valve seat

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