US 12,281,603 B2
Vertically storable engine and mower
Jacob J. Schmalz, Milwaukee, WI (US)
Assigned to Briggs & Stratton, LLC, Wauwatosa, WI (US)
Filed by Briggs & Stratton, LLC, Wauwatosa, WI (US)
Filed on Oct. 10, 2016, as Appl. No. 15/289,829.
Application 15/289,829 is a division of application No. 13/682,567, filed on Nov. 20, 2012, granted, now 9,462,747.
Application 13/682,567 is a continuation in part of application No. 13/288,027, filed on Nov. 3, 2011, granted, now 9,433,147.
Prior Publication US 2017/0022859 A1, Jan. 26, 2017
Int. Cl. F01M 11/04 (2006.01); A01D 34/68 (2006.01); A01D 34/81 (2006.01); A01D 34/82 (2006.01); A01D 69/12 (2006.01); F01M 11/00 (2006.01); F01M 11/06 (2006.01); F02B 63/02 (2006.01); F02B 77/00 (2006.01); A01D 101/00 (2006.01)
CPC F01M 11/0458 (2013.01) [A01D 34/68 (2013.01); A01D 34/81 (2013.01); A01D 34/82 (2013.01); A01D 34/824 (2013.01); A01D 34/828 (2013.01); A01D 69/12 (2013.01); F01M 11/0004 (2013.01); F01M 11/065 (2013.01); F02B 63/02 (2013.01); F02B 77/00 (2013.01); A01D 2101/00 (2013.01); F01M 2011/0066 (2013.01); F01M 11/04 (2013.01); F01M 2011/0483 (2013.01); Y10T 29/49716 (2015.01)] 15 Claims
OG exemplary drawing
 
1. A mower comprising:
a gasoline powered engine configured to operate in a substantially horizontal orientation and to be stored in a generally vertical orientation without leaking of fluid contained in the gasoline powered engine, the gasoline powered engine comprising:
a sump;
a first oil drain port extending in a first direction through a first wall of the sump, wherein the first wall forms a bottom of the sump when the gasoline powered engine is in the vertical orientation, wherein the first oil drain port is configured to be releasably connected to an oil cartridge with the oil cartridge being upright when the gasoline powered engine is in the vertical orientation;
a drain port closing mechanism actuatable between a port closing position and a port opening position, wherein the drain port closing mechanism is biased to the port closing position when the gasoline powered engine is in the generally vertical orientation and wherein the drain port closing mechanism moves against the bias to the port opening position upon receipt of a spout of the oil cartridge by the first oil drain port; and
a fuel tank having an opening configured to receive gasoline to be stored in the fuel tank and an outlet port, separate from the opening, through which the gasoline stored in the fuel tank is supplied to the gasoline powered engine, the fuel tank including a filler neck extending about the opening and a filler skirt extending into an internal volume of the fuel tank from the opening to a distal end,
wherein the opening is located above the gasoline stored in the fuel tank when the gasoline powered engine is in the generally vertical orientation,
wherein the distal end of the filler skirt defines a maximum fill level for the fuel tank.