Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3314600 A
Publication typeGrant
Publication dateApr 18, 1967
Filing dateNov 21, 1963
Priority dateNov 21, 1963
Publication numberUS 3314600 A, US 3314600A, US-A-3314600, US3314600 A, US3314600A
InventorsHadley Harold F
Original AssigneeFrank M Cobourn
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Valve apparatus
US 3314600 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

April 18, 1967 H. F. HADLEY VALVE APPARATUS Filed Nov. 21, 1963 20 INVENTOR.

HAROLD F. HADLEY affor'neq United States Patent 3,314,600 VALVE APPARATUS Harold F. Hadley, Toledo, Ohio, assignor of one-half to Frank M. Cobourn, T0ledo,'0hi0 Filed Nov. 21, 1963, Ser. No. 325,306 3 Claims. (Cl. 230-172) improved valve apparatus.

Another object of this invention is to provide a novel thin combination intake and check valve apparatus, leaving very little space between the top of the piston and bottom of the cylinder head, thereby greatly increasing the efliciency of any fluid pump by exhausting nearly all of the fluid at the end of each compression stroke.

Another object of this invention is to provide a valve apparatus which is simple in construction, inexpensive to manufacture, and provides simplicity for parts replacement.

Another object of this invention is to provide a combination intake and check valve apparatus which may accommodate a large number of applications and retain its simplicity of operation and inexpensive construction for each application.

A combination intake and check valve apparatus embodying the features of this invention comprises a plate member, a compression head member, and a valve member or plate of flexible material disposed intermediate the plate and head members. The valve member has at least two apertures formed therein and has flapper means extending across each aperture. The flapper means may be formed integral with the valve member. The first of the flapper means is positioned flush with a first surface of the valve member. The second of the flapper means is positioned flush with a second surface of the valve member. The head and plate members each have inlet and exhaust ports formed therein. The first flapper means registers flush with and covers the inlet port of the head member. The second flapper means registers flush with and covers the exhaust port of the plate member. Channel means are formed in one of the valve and head members to provide communication between an exhaust port of the plate and head members via the second flapper means.

Other objects, features and advantages of the invention will become apparentwhen the following description is taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a front view of the compression head member utilized in this invention;

FIG. 2 is a front view of the valve member utilized in this invention;

FIG. 3 is a front view of a plate member utilized in this invention;

FIG. 4 is an exploded side elevational view of the assembly utilized in this invention;

FIG. 5 is a rear view of the elements shown in FIGS. 1 through 3' in assembled position;

FIG. 6 is a cross-sectional view taken along the lines A-A of FIG. 5; and

FIG. 7 is a cross-sectional view taken along the lines BB of FIG. 5.

3,3 14,600 Patented Apr. 18, 1967 Referring now to the drawings there is shown the compression head member 10 which comprises an end wall 12 and cylindrical side walls 11 extending rearwardly from the end wall 12. Inlet ports 13 are formed in the end wall 12 and an exhaust port 14 is also formed in the end wall 12.

Referring to FIG. 2 there is shown a front view of valve member 20 which may be formed of a flexible material such as molded rubber or plastic. Valve member 20 has a first set of apertures 21 formed therein and a first set of flapper means 22 extending across the first set of apertures. As shown in the present embodiment all flapper means are formed integral with the valve member. The first set of flapper means 22 are formed flush with a first side or surface of the valve member 20. Valve member 20 has a second set of apertures 23 formed therein and a second set of flapper means 24 extending across the second set of apertures 23. The second set of flapper means 24 are formed flush with a second surface or side of valve member 20.

Referring to FIG. 3 there is shown a plate member 30 having inlet ports 31 and exhaust ports 32 formed therein. It will be noted that one or more male locating stud means 36 may be formed on plate member 30 to register with female locating aperture means 26 formed in or through valve member 20. The positions of the male and female members may, of course, be reversed with respect to the valve andplate members 20 and 30. The location means 26 and 36 function to maintain the relative position of the valve and plate members to ensure registration of the flapper and port means. Although not shown, similar location means may be employed to maintain proper registration of flapper means and ports of the valve and head members 10 and 20, respectively.

Referring to FIG. 4 there is shown in addition to the slidably receive a piston 50.

In FIG. 5 the components shown in FIGS. 1 through 3 are shown in an assembled position from a rear view. Referring to FIGS. 5, 6 and 7 it will be seen that the compression head member 10 receives the plate member 30 with the valve member 20 disposed intermediate the plate member 30 and the end Wall 12 of the head member 10. The cylinder 40 is then inserted within the side Walls 11 of the compression head member 10 and functions to hold the valve member 20 and plate member 30 in position against the end wall 12 of compression head 10, as well as functioning to receive slidably the piston 50. The cylinder 40 may be secured against movement within the side walls 11 of head 10 by any of several well known means.

Summarizing the assembly, the valve member 20' is placed against the inside of the compression head 10 so that the two flappers 22 lie flat against and cover the inlet ports 13 in the compression head end wall 12. Against this is placed the plate member 30 so that the two exhaust flappers 24 of the valve member 20 lie flat against and cover the exhaust ports 32 formed in the plate member 30. The two inlet ports 31 formed in plate member 30 are positioned to register with and clear for movement therethrough the inlet flappers 22 of the valve member 20.

In operation when the piston 50 is on the intake stroke (as best seen in FIG. 6), the inlet flappers 22 rise off the inlet ports 13 formed in the compression head 10 and allow air to flow into cylinder 40 as shown by the arrows. The exhaust flappers 24 seal against the forward side of exhaust ports 32 formed in the plate member 30 and prevent air flow back through the exhaust port 14.

On the pressure stroke of the piston. 50, the inlet flappers 22 seal against the rear side of the inlet ports 13 formed in the compression head 10 preventing air loss through ports 13. The exhaust flappers 24 are opened (best seen in FIG. 7) by the air pressure from the piston movement and air flows through exhaust ports 32 and through the exhaust channel or passage 25 formed in the valve member 20 and out through the exhaust port 14 formed in the compression head 10, as noted by the arrows.

It will be noted in the embodiment shown that the intake valve flappers 22 have unrestricted travel in toward the piston so that the cylinder may be quickly filled with air or other fluids. However, the exhaust valve flappers 24 have restricted opening by coming in contact with the inside of compression head end wall 12. The relative operation of the fiappers may be reversed if required. However, if, for example, the check valve apparatus is being used in a hand pump assembly for operating marine air horns it is desirable that air be brought into the cylinder 40 as quickly as possible. However, when the iston 40 reverses its travel and compresses the air to supply compressed air to the marine horns out through exhaust port 14 then it may be desirable that the velocity of the compressed air be held to a predetermined amount to operate the air horns correctly. It should further be noted that while the valve apparatus described herein may be utilized in many other applications it has been described as utilized with marine air horns to point up the desirability of the check valve assembly.

In conclusion, it is pointed out that while the illustrated example constitutes a practical embodiment of my invention, I do not limit myself to the exact details shown, since modification of the same may be made without departing from the spirit and scope of this invention.

Having described the invention, I claim:

1. Pump apparatus having combination intake and check valve means comprising a cylinder having a head formed at one end thereof; a piston disposed in said cylinder; said head having inlet and exhaust port means formed therein; a flat valve member disposed against said head and having inlet and exhaust apertures formed therein; said valve member having flexible inlet flapper means in said inlet aperture means registering with and disposed to cover said inlet port means formed in said head; and a flat plate member arranged against the side of said valve member opposite said head; said plate member having inlet aperture and exhaust aperture means formed therein; said inlet aperture means of said plate member registering with and allowing passage therethrough of said inlet flapper means; said valve member having flexible exhaust flapper means in said exhaust aperture means registering with and disposed to cover said exhaust port means formed in said plate member; said exhaust flapper means being formed to have a thickness less than that of said flat valve member allowing limited travel of said flapper means within said exhaust aperture means before abutting against said head; said exhaust port means of said head communicating with said exhaust aperture means formed in said valve member.

2. Apparatus as defined in claim 1 in which said head has only one exhaust port formed therein and said valve member has two exhaust apertures formed therein, one of said valve member and said head having an exhaust channel formed therein providing communication between said exhaust apertures and said exhaust port in said head.

References Cited by the Examiner UNITED STATES PATENTS 2,537,241 l/1951 Smith 1375l2.15 X 2,809,589 10/1957 Randolph l37525 X 2,856,955 10/1958 Winkelrnan 137512 3,005,523 10/1961 May 137-5253 X 3,104,617 9/1963 Barr 137-5l2.4 X

WILLIAM F. ODEA, Primary Examiner.

HAROLD WEAKLEY. Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2537241 *Apr 20, 1946Jan 9, 1951Jacobs Co F LFuel pump
US2809589 *Mar 11, 1955Oct 15, 1957Randolph Chalmers HElectro-magnetically operated pump
US2856955 *Aug 2, 1955Oct 21, 1958James WinkelmanValve structure for aerators or the like
US3005523 *Oct 6, 1959Oct 24, 1961Electric Regulator CorpDamping dashpot
US3104617 *Aug 8, 1960Sep 24, 1963Mcculloch CorpDiaphragm pump
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4137016 *Aug 4, 1977Jan 30, 1979Itakura Soki Co., Ltd.Valve mechanism for an air pump
US4181477 *Mar 2, 1978Jan 1, 1980Pace IncorporatedPump valve
US4582469 *Dec 11, 1984Apr 15, 1986Honda Giken Kogyo Kabushiki Kaisha Kabushiki Kaisha Honda RokkuIntake valve apparatus in air pump
US4723894 *Dec 3, 1986Feb 9, 1988Transamerica Delaval, Inc.Low-pressure air pump
US4726573 *Jun 11, 1986Feb 23, 1988Firma Carl FreudenbergMount having hydraulic damping action and membrane therefor
US4770413 *Apr 27, 1987Sep 13, 1988Mba Healthcare Products, Inc.Breathing exercise device
US4776776 *Aug 24, 1987Oct 11, 1988The Devilbiss CompanySmall pump valve plate assembly
US5004215 *May 17, 1990Apr 2, 1991Societe Nationale Industrielle Et AerospatialeResilient return strut of the elastic-hydraulic type with incorporated linear damping by throttling a high-viscosity fluid
US5201643 *Mar 29, 1991Apr 13, 1993Aisin Seiki Kabushiki KaishaCompression machine
US5456287 *Oct 3, 1994Oct 10, 1995Thomas Industries Inc.Compressor/vacuum pump reed valve
US5476367 *Jul 7, 1994Dec 19, 1995Shurflo Pump Manufacturing Co.Booster pump with sealing gasket including inlet and outlet check valves
US5571000 *Aug 15, 1995Nov 5, 1996Shurflo Pump Manufacturing Co.Booster pump with bypass valve integrally formed in gasket
US5632607 *Nov 1, 1995May 27, 1997Shurflo Pump Manufacturing Co.Piston and valve arrangement for a wobble plate type pump
US5709535 *Apr 17, 1996Jan 20, 1998Zexel CorporationMulti-cylinder reciprocating compressor having improved discharge valve stopper assembly
US5791882 *Apr 25, 1996Aug 11, 1998Shurflo Pump Manufacturing CoHigh efficiency diaphragm pump
US5800136 *Feb 28, 1997Sep 1, 1998Shurflo Pump Manufacturing Co.Pump with bypass valve
US5827941 *Nov 6, 1997Oct 27, 1998Pulmonary Data Service Instrumentation, Inc.Flow-controlled calibration syringe
US6048183 *Feb 6, 1998Apr 11, 2000Shurflo Pump Manufacturing Co.Diaphragm pump with modified valves
US6623245Nov 26, 2001Sep 23, 2003Shurflo Pump Manufacturing Company, Inc.Pump and pump control circuit apparatus and method
US6715994Nov 12, 2001Apr 6, 2004Shurflo Pump Manufacturing Co., Inc.Bilge pump
US7029245 *May 6, 2003Apr 18, 2006Sorin Group Italia S.R.L.Blood pumping unit, with a coplanar disk inlet valve and an annular outlet valve
US7083392Jun 3, 2003Aug 1, 2006Shurflo Pump Manufacturing Company, Inc.Pump and pump control circuit apparatus and method
US7806664Apr 6, 2004Oct 5, 2010Shurflo, LlcBilge pump
US20120024037 *Mar 24, 2010Feb 2, 2012Alderley PlcCompact provers
DE4123380C2 *Jul 15, 1991Dec 5, 2002Zahnradfabrik FriedrichshafenRadialkolbenpumpe
EP0205657A2 *Nov 9, 1985Dec 30, 1986Firma Carl FreudenbergHydraulically damped engine support
WO1997016643A2 *Oct 31, 1996May 9, 1997Shurflo Pump Manufacturing CoPiston pump
Classifications
U.S. Classification417/566, 137/512.15, 137/855, 417/571, 137/512.4
International ClassificationF04B39/10, F16K15/14
Cooperative ClassificationF16K15/144, F04B39/1073
European ClassificationF16K15/14H, F04B39/10R
Legal Events
DateCodeEventDescription
Sep 24, 1984ASAssignment
Owner name: NELSON METAL PRODUCTS COMPANY 2950 PRAIRIE ST., GR
Free format text: ASSIGNOR DOES HEREBY QUIT CLAIM AND ASSIGN THE ENTIRE INTERST;ASSIGNOR:MIDLAND-ROSS CORPORATION A CORP. OF OH;REEL/FRAME:004304/0211
Effective date: 19811231