US 8,539,922 B2Granted

Rigid primer bulb pump

AssigneeBluskies International LLC

InventorsChristopher Brown, Marvin Peplow

Life of this patent

Estimating the term…

Loading patent…

Abstract

A hand operated primer pump for small marine or other engines generally spark ignition engines used on stern drive boats that prevents transfer of hydrocarbons into the atmosphere. The primer generally mimics and replaces prior art rubber primer bulbs in general shape and possibly color, although it can be made in any shape or color. It generally contains a pump that delivers a precise measured amount of fuel with each stroke of the actuator. The primer can have an ergonomically designed actuator that creates the farthest distance from a fulcrum point for maximum leverage and hence, maximum ease of use. The primer is generally designed with a continuous molded fuel path to seal any source of hydrocarbon leakage as well as being made from materials that prevent transfer of hydrocarbons to the atmosphere.

Claims12

Dependent claims

A primer pump for use on a fuel line for a marine engine comprising:

a rigid housing containing a pump body, a fuel flow path, an entrance check plunger at a first end of said fuel flow path and an exit check plunger on a second end of said fuel flow path, said fuel flow path connectable at each end to fuel hoses;
a rigid actuator pivotally attached to said housing, said actuator pressing on a spring-biased rigid piston and seal, said rigid piston and seal entering said pump body when said rigid actuator is depressed causing fuel contained in said pump body to flow into said fuel path;
and wherein said rigid actuator is mounted directly on top of a cup-shaped piston guide, which fits onto an outside surface of a generally cylindrical piston housing with a protruding extremity at an upper end of the pump body;
a first flexible hose connectable to a fuel supply attached to said first end of said fuel flow path;
a second flexible hose connectable to a marine engine attached to said second end of said fuel flow path;
a slot and tab mechanism between said piston guide and said pump body that prevents said piston guide from separating from said pump body.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/622,731Filed 20 Nov 2009 · continuation in part
Priority: 8 Feb 2008
Published: US 2011/0083629 A114 Apr 2011
Granted: 24 Sep 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

F02M 37/16
Feeding by means of driven pumps: characterised by provision of personally-, e.g. manually-, operated pumps
B63H 21/38
Use of propulsion power plant or units on vessels: apparatus or methods specially adapted for use on marine vessels, for handling power plant or…
B63B 2231/40
Material used for some parts or elements, or for particular purposes: synthetic materials
F02B 61/045
For driving propellers: for marine engines

Family

Application61/065,175Us provisional application · filed 8 Feb 2008
Application12/313,268Parent of this continuation-in-part · filed 18 Nov 2008
US 2011/0083629 A1Pre-grant publication · published 14 Apr 2011
US 8,069,830 B2Parent of this continuation-in-part
US 2009/0199806 A1Published application
US 8,539,922 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key