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Publication numberUS2476545 A
Publication typeGrant
Publication dateJul 19, 1949
Filing dateJun 7, 1947
Priority dateJun 7, 1947
Publication numberUS 2476545 A, US 2476545A, US-A-2476545, US2476545 A, US2476545A
InventorsHayward John T
Original AssigneeHunt Miller Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Bilge pump
US 2476545 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

July 19, 1949.


ATTORNEY `of several conventional methods.

vmay and normally do include merely dipping out Patented July 19, 1949 UNITED STATES PATENT OFFICE BILGE PUMP John T. Hayward, Tulsa, Okla., assigner to I Iunt- Miller Co., Rochester, N. Y., a partnersh1p Application June 7, 1947, serial No. 753,148

and other operational purposes with the result that when it is necessary to bail out any water, operational duties must be interrupted to allow a crew member to bail out the water by any one Such methods the accumulated water with a can or bucket, which is necessarily slow and inefficient, or the Vuse of a conventional form of hand pump, generally of a plunger type; requiring the use of both hands for operation. In sail boa-t racing particularly, this type of interruption is very undesirable because it necessarily distracts the attention of the crew from the sailing operations which Furthermore, the commonly used plunger-type hand pumps frequently become fouled by vege tation and other trash which will accumulate in the bilges and ordinarily will require a kit of tools, generally not available on small boats, to dis-assemble them for cleaning. Such plunger vpumps normally tend to corrode in sea water, and 'since they employ sliding surfaces, such corrosion tends to increase the rapidity of the wear.

Among the principal'objects of this invention,

therefore, is the provision' of a novel and simple form of bilge pump which is adapted for operation by foot pressure; which is of very simple form, which can be assembled and dis-assembled substantially entirely with the hands, which has no machined or sliding surfaces, and which is not subject to corrosion by sea water.

A more specific object of the present invention is the provision of a form of bilge pump employing a compressible valve chamber having simple forms of intake and discharge valves, the chamvber being compressible and expandible in response to foot 4pressure to eiect the pumping operation.

' Other and more speclc objects and advantages of this invention will be apparent from the following detailed description when read in con- 1 Claim. (CIL 10S- 148) junction with the accompanying drawings which illustrate two useful embodiments in accordance with this invention.

In the drawings:

Fig. 1 is a generally schematic View showing the bilge pump in accordance vwith this invention positioned in the bottom of la4 boat'in ,operative position for pumping out the bilges;

Fig. 2 is a cross-sectional elevation through one embodiment of the pump in accordance with this invention;

Fig. 3 is a view looking upwardly toward the bottom of the pump along line 3-'3 of Fig. 2; and

Fig. 4 is a generally cross-sectionalelevation of another embodiment of a pump in accordance with this invention.

Referring to the drawings, the pump comprises a base plate I0 of generally circular form provided on its lower surface with a plurality of spacing feet II for spacing base plate IIJ from the bottom of the boat or other surface on Which bilge Water collects. rBase plate I il is provided with a peripheral upwardly and inwardly turned flange I2, the inner face of which forms a generally annular curved seat I3 about the periphery of the upper surface of the base plate. A plurality of passageways I4-I4 are provided in base plate I 0 and are preferably arranged ina wide pitch circle concentric about the center of the base plate. Passageways I 4-I4 constitute the intake valve ports of the .pump and may be provided in any suitable number and geometric arrangement and of any suitable diameter depending upon the pumping capacity desired. Mounted on the upper surface of base plate I0 and covering passageways I4 is a circular valve 'disk I5. A stud I6 extends through the center able exible material, such that its peripheral portion may be `flexed about center stud I6 to raise and lower relative to the upper surface of base plate I0 to open and close passageways I4. Valve disk I5 may, ofcourse, be of the more conventional plate valve form in which the valve disk is constructed' of a suitable thin `metal which floats on center stud I6 or is held thereon in normally closed position by a light spring. A hollow generally dome-shaped cup member I'I, constructed of rubber or other suitable resilient material, forms the valve chamber for the pump, and has its open mouth downwardly disposed onbase plate I0 enclosing the intake valve of the pump.

may be constructed without the use of any carefully machined parts, al1 of which is of great con-` venience and advantage to boat operators. By constructing the metal parts of bronze or admiralty metal and the other parts of rubber, as described, the entire pump will be resistant to salt Water corrosion.

It will be understood the various alterations and changes may be madeA in the details of the pump in accordance with this invention without departing from the scope of the appended claim but within the spirit of this invention.

What I claim and desire to secure by Letters Patent is:

A bilge pump, comprising, a circular base plate having an upwardly and inwardly turned peripheral lip, a plurality of intake ports through said base plate circularly arranged about the axis thereof, a circular valve disk constructed of iiexible material covering said intake ports and attached at its center to the center of said base plate, a hollow dome-shaped elastic rubber casing disposed in inverted position on said base plate and enclosing said valve, said casing having its open loWer end frictionally gripped by and beneath said lip to form a releasable fluid-tight connection therewith and held in position solely by said gripping action, the upper portion of said REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 212,898 Class Mar. 4, 1879 854,670 Schiodt May 21, 1907 1,219,714 Eberly Mar. 20, 1917 2,267,280 Kuhnel Dec, 23, 1941 2,368,091 Andersen Jan. 30, 1945

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US1219714 *Mar 26, 1916Mar 20, 1917Domestic Engine & Pump CoDiaphragm-pump.
US2267280 *Oct 14, 1938Dec 23, 1941Hermes Patentverwertungs GmbhDevice for conveying fluids
US2368091 *Feb 19, 1944Jan 30, 1945Andersen Thomas KPump
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2639200 *Dec 7, 1949May 19, 1953Hennessy Lubricator Company InRailway axle box lubricator
US2676855 *Dec 21, 1950Apr 27, 1954Hennessy Lubricator Company InRailway axle journal lubricator
US2702147 *Mar 10, 1951Feb 15, 1955Frederick M TurnbullFluid dispensing unit and pump
US2717556 *Oct 16, 1952Sep 13, 1955Trico Products CorpWindshield washer
US2777397 *Feb 19, 1954Jan 15, 1957Atkinson Herbert JBilge pump
US2834296 *Nov 23, 1953May 13, 1958Delman CoPump unit for windshield clearing systems
US2845032 *Jan 28, 1954Jul 29, 1958Anderson CoPump for use with a windshield washer system
US2856101 *Jul 5, 1956Oct 14, 1958Howard VermetteOil pumping mechanism
US3062152 *Aug 29, 1960Nov 6, 1962Huff Sr Russell CBilge pump
US3062415 *Jan 14, 1959Nov 6, 1962John W AndersonImproved dispenser delivering chamber
US3078679 *Jan 23, 1961Feb 26, 1963Dunlop Rubber CoPneumatic operating device
US4452379 *Jul 9, 1982Jun 5, 1984Bundschuh Robert LPump dispenser with one-piece stretchable biasing member and valve
US4850826 *Mar 7, 1988Jul 25, 1989Detlefsen Charles RSuction pump with collapsible bellows
US5351710 *May 2, 1994Oct 4, 1994Reebok International Ltd.Inflation mechanism for inflatable article of manufacture
US6785985Jul 2, 2002Sep 7, 2004Reebok International Ltd.Shoe having an inflatable bladder
US6988329Mar 4, 2005Jan 24, 2006Reebok International Ltd.Shoe having an inflatable bladder
US7047670Jul 2, 2003May 23, 2006Reebok International Ltd.Shoe having an inflatable bladder
US7152625May 24, 2004Dec 26, 2006Reebok International Ltd.Combination check valve and release valve
US7278445Jul 12, 2004Oct 9, 2007Reebok International Ltd.Shoe having an inflatable bladder
US7337560Oct 28, 2005Mar 4, 2008Reebok International Ltd.Shoe having an inflatable bladder
US7340851Mar 29, 2006Mar 11, 2008Reebok International Ltd.Shoe having an inflatable bladder
US7513067Jan 12, 2006Apr 7, 2009Reebok International Ltd.Shoe having an inflatable bladder
US7721465Jan 4, 2008May 25, 2010Reebok International Ltd.Shoe having an inflatable bladder
US7735241Jan 11, 2006Jun 15, 2010Reebok International, Ltd.Shoe having an inflatable bladder
US8037623Oct 18, 2011Nike, Inc.Article of footwear incorporating a fluid system
US8151489Apr 9, 2010Apr 10, 2012Reebok International Ltd.Shoe having an inflatable bladder
US8677652Mar 9, 2012Mar 25, 2014Reebok International Ltd.Shoe having an inflatable bladder
US20040003515 *Jul 2, 2002Jan 8, 2004William MarvinShoe having an inflatable bladder
US20070046804 *Aug 28, 2006Mar 1, 2007Olympus CorporationImage capturing apparatus and image display apparatus
EP0012584A1 *Dec 7, 1979Jun 25, 1980The Warwick Pump & Engineering Company LimitedHigh pressure diaphragm pump
U.S. Classification417/479, 417/454, 92/92, 417/566
International ClassificationF04B53/10, F04B43/00
Cooperative ClassificationF04B53/1065, F04B43/0063
European ClassificationF04B53/10F4F4, F04B43/00D8B