IP Library › Granted Patent US 12,514,401
Granted Patent B2
US 12,514,401 · App. 17/446,759 · Granted Jan 6, 2026

Outdoor pellet grill

Inventor: Zachary Springer (Bentonville, AR)
Assignee: Walmart Apollo, LLC
A47J37/0704A47J37/0754A47J37/0786
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Quick Facts
Patent No.
US 12,514,401
App. No.
17/446,759
Granted
Jan 6, 2026
Kind
B2
Abstract

An outdoor pellet grill that includes a grill housing including: a grill base; a rear wall portion secured to the grill base; a top wall portion secured to the rear wall portion; and a hinged grill cover providing selective enclosure around an interior cooking space within the grill housing. The outdoor pellet grill includes a cooking platform, pellet hopper, burn pot, auger, and actuator. The burn pot and the heat baffle are located beneath the cooking platform and provide heat to food from below. The auger extends between the pellet hopper and the burn pot and transports pellets of fuel from the pellet hopper to the burn pot. The actuator is rotatably coupled to the heat baffle and includes a first set of apertures positioned for selective alignment with a second set of corresponding apertures in the heat baffle to govern regulation of flames from the burn pot.

Claims (52)

1 . An outdoor pellet grill, comprising:

a grill housing including:

a grill base;

a rear wall portion secured to the grill base;

a top wall portion secured to the rear wall portion; and

a hinged grill cover providing selective enclosure around an interior cooking space within the grill housing;

a cooking platform coupled within the grill housing, wherein the cooking platform holds food in the interior cooking space;

a pellet hopper adjacent the grill housing, the pellet hopper including a set of probes housed in the pellet hopper, the set of probes configured to be inserted through a passageway in a side of the pellet hopper adjacent to the grill housing, wherein the set of probes access the interior cooking space of the grill upon being inserted through the passageway and remain coupled to a set of controls;

a burn pot covered by a heat baffle located in the grill base, the burn pot and the heat baffle further located beneath the cooking platform and provide heat to food from below;

an auger extending between the pellet hopper and the burn pot that transports pellets of fuel from the pellet hopper to the burn pot;

an actuator, rotatably coupled to the heat baffle, that includes a first set of apertures positioned for selective alignment with a second set of corresponding apertures in the heat baffle to govern regulation of flames from the burn pot;

a squirrel cage blower associated with the grill base proximate the burn pot and the heat baffle; and

grill ductwork defining a cavity extending from the squirrel cage blower of the grill base to an opening above the cooking platform, wherein the squirrel cage blower directs smoke produced by the burn pot through the grill ductwork to the opening above the cooking platform such that smoke is focused down onto the cooking platform from above while continuing to direct heat to the cooking platform from below, wherein a bark texture is created on an outer surface of food placed onto the cooking platform.

2 . The outdoor pellet grill of claim 1 , wherein the actuator is coupled to a handle that extends outside the grill housing, enabling user directed positioning of the actuator to provide food searing control.

3 . The outdoor pellet grill of claim 1 , wherein heat and smoke generated for cooking is entirely provided by burning wood pellets in the burn pot.

4 . The outdoor pellet grill of claim 1 , wherein the burn pot is latchably releasable and removable from the grill housing.

5 . The outdoor pellet grill of claim 1 , wherein the pellet grill includes a control panel display that controls the set of controls, permits digital temperature control and relays heat information from probes located inside the grill.

6 . The outdoor pellet grill of claim 1 , wherein the outdoor pellet grill is part of an outdoor grilling assembly that includes an outdoor griddle having an independent heat source for cooking as well.

7 . The outdoor pellet grill of claim 1 , further including:

a control panel display, wherein the set of controls determine how quickly pellets are delivered to the burn pot and temperature at which the grill operates.

8 . The outdoor pellet grill of claim 7 , wherein the grill ductwork provides a pathway with a C shaped cross-section extending from the squirrel cage blower in the grill base, up the rear wall portion and along the top wall portion of the grill housing to the opening above the cooking platform.

9 . The outdoor pellet grill of claim 7 , wherein the grill ductwork provides a pathway with a C shaped cross-section, and wherein a portion of the grill ductwork is external to the grill housing, and wherein a horizontally-disposed segment of the grill ductwork enters the interior cooking space of the grill.

10 . The outdoor pellet grill of claim 1 , wherein an igniter or coil heater is provided to begin combustion of wood pellets in the burn pot.

11 . A method of barkmode cooking using an outdoor pellet grill, comprising:

providing the outdoor pellet grill comprising:

a grill housing including a grill base, a rear wall a top wall, and a hinged grill cover providing selective enclosure around an interior cooking space;

a cooking platform coupled within the grill housing, wherein the cooking platform holds food in the interior cooking space;

a pellet hopper adjacent the grill housing, the pellet hopper including a set of probes housed in the pellet hopper, the set of probes configured to be inserted through a passageway in a side of the pellet hopper adjacent to the grill housing, wherein the set of probes access the interior cooking space of the grill upon being inserted through the passageway and remain coupled to a set of controls;

a burn pot covered by a heat baffle located in the grill base, the burn pot and the heat baffle further located beneath the cooking platform and provide heat to food from below;

an auger extending between the pellet hopper and the burn pot that transports pellets of fuel from the pellet hopper to the burn pot;

a squirrel cage blower in the grill base proximate the burn pot and the heat baffle;

grill ductwork defining a cavity extending from the squirrel cage blower in the grill base, up the rear wall and along the top wall of the grill housing to an opening above the cooking platform;

directing wood pellets with the auger;

igniting wood pellets within the burn pot;

receiving food on the cooking platform for cooking;

directing heat to the cooking platform from below; and

directing smoke through a C-shaped grill ductwork defining the cavity extending from the squirrel cage blower in the grill base, up the rear wall and along the top wall of the grill housing to the opening above the cooking platform wherein the squirrel cage blower directs smoke through the grill ductwork and out the opening above the cooking platform down onto a top of food and to create a bark texture on an outer surface of the food, while continuing to direct heat to the cooking platform from below.

12 . A method of claim 11 , further including manipulating the heat baffle to sear the food being cooked.

13 . A method of claim 11 , wherein controls include a pellet grill cooking mode and a barkmode cooking mode.

14 . A method of claim 11 , wherein food is cooked only by wood fueled combustion providing smoke and heat.

15 . A method of claim 11 , wherein the outdoor pellet grill is part of an outdoor grilling assembly that includes an outdoor griddle having an independent heat source for cooking as well.

16 . An outdoor pellet grill, comprising:

a grill housing including:

a grill base;

a rear wall portion secured to the grill base;

a top wall portion secured to the rear wall portion; and

a grill cover providing selective enclosure for an interior cooking space within the grill housing;

a cooking platform within the grill housing;

a pellet hopper adjacent the grill housing, the pellet hopper including a set of probes housed in the pellet hopper, the set of probes configured to be inserted through a passageway in a side of the pellet hopper adjacent to the grill housing, wherein the set of probes access the interior cooking space of the grill upon being inserted through the passageway and remain coupled to a set of controls;

a burn pot covered by a heat baffle located in the grill base, the burn pot and the heat baffle located beneath the cooking platform, wherein the cooking platform is heated from below;

a squirrel cage blower in the grill base proximate the burn pot and the heat baffle; and

grill ductwork defining a C shaped cavity extending from the squirrel cage blower in the grill base, up the rear wall portion and along the top wall portion of the grill housing to an opening above the cooking platform, wherein the squirrel cage blower and the grill ductwork directs smoke from the grill base through the grill ductwork to the opening above the cooking platform such that smoke is focused down onto the cooking platform from above, while continuing to direct heat to the cooking platform from below, wherein a bark texture is created on an outer surface of food placed onto the cooking platform.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2022
From: SPRINGER, ZACHARY
To: WALMART APOLLO, LLC
Reel/Frame 059865/0755 →
Continuity (2)
Provisional Application 63074983 · Sep 4, 2020
Related Publication 20220071444A1 · Mar 10, 2022
References Cited (118)
US 1038849A · Carter · 1912 [cited by examiner]
US 1199656A · Beatty · 1916 [cited by examiner]
US 3384068A · Perry · 1968 [cited by examiner]
US D218352S · Hoch · 1970 [cited by applicant]
US 3568047A · Look et al. · 1971 [cited by applicant]
US 3658047A · Happel · 1972 [cited by examiner]
US 3837329A · Mutchler · 1974 [cited by applicant]
US 3896242A · Moore · 1975 [cited by examiner]
US D253627S · Adamson · 1979 [cited by applicant]
US 4389562A · Chaudoir · 1983 [cited by examiner]
US 4823684A · Traeger et al. · 1989 [cited by applicant]
US D302703S · Foran et al. · 1989 [cited by applicant]
US D348284S · Thorud et al. · 1994 [cited by applicant]
US D348694S · Evenson · 1994 [cited by applicant]
US D420851S · Wagner · 2000 [cited by applicant]
US 6203834B1 · Anders et al. · 2001 [cited by applicant]
US D465693S · Coleman et al. · 2002 [cited by applicant]
US D489221S · Pai · 2004 [cited by applicant]
US 6810792B1 · Knight · 2004 [cited by examiner]
US D503067S · Lubowicki · 2005 [cited by applicant]
US 7066169B2 · Feldewerth et al. · 2006 [cited by applicant]
US D536918S · Wood · 2007 [cited by applicant]
US 7228792B2 · Crawford et al. · 2007 [cited by applicant]
US D546116S · Tseng · 2007 [cited by applicant]
US D560415S · Wood et al. · 2008 [cited by applicant]
US D584562S · Chau et al. · 2009 [cited by applicant]
US D613117S · Richburg · 2010 [cited by applicant]
US D614915S · Schnitman et al. · 2010 [cited by applicant]
US D655989S · Nelms · 2012 [cited by applicant]
US D657183S · May · 2012 [cited by applicant]
US D671788S · Slater · 2012 [cited by applicant]
US D679331S · Stravitz · 2013 [cited by applicant]
US D680797S · Chung · 2013 [cited by applicant]
US D683177S · Brennan · 2013 [cited by applicant]
US D694056S · Dahle · 2013 [cited by applicant]
US D732874S · Chung · 2015 [cited by applicant]
US D736026S · Kam et al. · 2015 [cited by applicant]
US D737627S · Goldenstein et al. · 2015 [cited by applicant]
US D741105S · Ryan · 2015 [cited by applicant]
US D745802S · Yao · 2015 [cited by applicant]
US 9357879B2 · Ortner et al. · 2016 [cited by applicant]
US 9585518B1 · Phillips · 2017 [cited by examiner]
US 9814354B2 · McADAMS et al. · 2017 [cited by applicant]
US D805343S · Magee · 2017 [cited by applicant]
US 10098500B1 · Hutton · 2018 [cited by examiner]
US D833207S · Zemel · 2018 [cited by applicant]
US 10213051B2 · Colston · 2019 [cited by applicant]
US D857439S · Chung · 2019 [cited by applicant]
US D869894S · Nicoll et al. · 2019 [cited by applicant]
US D896561S · Measom et al. · 2020 [cited by applicant]
US D901244S · Baker et al. · 2020 [cited by applicant]
US D915120S · Bennion et al. · 2021 [cited by applicant]
US D921413S · Fitzpatrick · 2021 [cited by applicant]
US D926510S · Chung · 2021 [cited by applicant]
US D927917S · Yueh · 2021 [cited by applicant]
US D927918S · Dahle et al. · 2021 [cited by applicant]
US D934611S · Dahle et al. · 2021 [cited by applicant]
US D940496S · Wang · 2022 [cited by applicant]
US 20030172919A1 · Rabas · 2003 [cited by examiner]
US 20040094142A1 · Christensen · 2004 [cited by examiner]
US 20050034716A1 · Harbin · 2005 [cited by applicant]
US 20070277800A1 · Chiang · 2007 [cited by applicant]
US 20090025705A1 · Hatjopoulos et al. · 2009 [cited by applicant]
US 20090235918A1 · Espina et al. · 2009 [cited by applicant]
US 20130298894A1 · Kleinsasser · 2013 [cited by examiner]
US 20150079250A1 · Ahmed · 2015 [cited by examiner]
US 20150316268A1 · Mackle · 2015 [cited by examiner]
US 20170164783A1 · Sauerwein et al. · 2017 [cited by applicant]
US 20170231430A1 · Moon · 2017 [cited by examiner]
US 20170332838A1 · Dahle et al. · 2017 [cited by applicant]
US 20180125083A1 · Carter · 2018 [cited by examiner]
US 20180168397A1 · Colston · 2018 [cited by examiner]
US 20180368618A1 · Measom · 2018 [cited by examiner]
US 20190256338A1 · Moss · 2019 [cited by applicant]
US 20190274479A1 · Chung · 2019 [cited by examiner]
US 20190290064A1 · Colston · 2019 [cited by examiner]
US 20190365152A1 · Dahle · 2019 [cited by examiner]
US 20200116349A1 · Rahmani · 2020 [cited by examiner]
US 20210127899A1 · James · 2021 [cited by examiner]
US 20210180793A1 · James · 2021 [cited by examiner]
US 20210244233A1 · Bush, III et al. · 2021 [cited by applicant]
US 20210315416A1 · Fullmer et al. · 2021 [cited by applicant]
US 20210369052A1 · Fullmer · 2021 [cited by examiner]
US 20220022688A1 · Barajas, Jr. et al. · 2022 [cited by applicant]
US 20220071444A1 · Springer · 2022 [cited by applicant]
US 20220071445A1 · Springer · 2022 [cited by applicant]
CN 303503968S · 2015 [cited by applicant]
CN 207803377U · 2018 [cited by applicant]
CN 110753507A · 2020 [cited by applicant]
DE 202017105189U1 · 2017 [cited by applicant]
GB 90040052390005 · 2017 [cited by applicant]
KR 101721368B1 · 2017 [cited by applicant]
Amazon., “Oster Titanium Infused DuraCeramic Reversible Grill/Griddle, Black,” dated Sep. 20, 2019, 9 pages. [cited by applicant]
“Amazon.com: Cuisinart GR-55 Griddler Stainless Steel Nonstick Grill/Griddle Combo, ” dated Sep. 19, 2019, 8 pages. [cited by applicant]
Application and File History for U.S. Appl. No. 29/749,461 mailed on Sep. 4, 2020, Inventor: Zachary Springer, 39 pages. [cited by applicant]
Application and File History for U.S. Patent Application No. U.S. Appl. No. 29/749,463, filed Sep. 4, 2020, Inventor: Zachary Springer, 40 pages. [cited by applicant]
Application and File History for U.S. Appl. No. 29/749,468, filed Sep. 4, 2020, Inventor: Zachary Springer, 39 pages. [cited by applicant]
Application and File History for U.S. Patent Application No. U.S. Appl. No. 29/749,472, filed Sep. 4, 2020, Inventor: Zachary Springer, 39 pages. [cited by applicant]
Application and File History for U.S. Appl. No. 29/749,475, filed Sep. 4, 2020, Inventor: Zachary Springer, 40 pages. [cited by applicant]
Blaze Outdoor Products., “Blaze 30-Inch Built-In Gas Griddle Lte,” mailed on Sep. 19, 2019, 3 pages. [cited by applicant]
“Campingaz Gas Plancha L, 2 Stainless Steel Burner Tabletop Gas BBQ, 7.5kW Power, Portable Table Ttop Grill, Large Non-Stick Steel Griddle, Teppanyaki Cooking Plate”, Jan. 15, 2018, Posted at https://www.amazon.co.uk/, … [cited by applicant]
“Camplux Enjoy Outdoor Life Gas Griddle Grill, Portable Camping Griddles, 22,000 BTU, 2 Burners Tabletop Griddle with1 lb Regulator for Camping, RV and Tailgating (GG302S), 22 inch”, Sep. 18, 2020, Posted at https://www… [cited by applicant]
Chinese Application, Application No. 201721097557.7 , filed Aug. 29, 2017, 15 pages. [cited by applicant]
Chinese Application Design No. 305786550, published on May 19, 2020, Author: Wang Maoxian, 8 pages. [cited by applicant]
“Cuisinart Grill with Removable Plate”, Aug. 28, 2020, Posted at https://www.amazon.co.uk/, [site visited Mar. 22, 2022], Retrieved from https://www.amazon.co.uk/, 3 pages. [cited by applicant]
“Cuisinart Grill with Removable Plate,” Amazon [online], Aug. 28, 2020, [site visited Mar. 22, 2022], Retrieved from Internet: URL: https://www.amazon.ae/Cuisinart-Collection-Entertaining-Temperature-PL60U/dp/B08GYHGJQ6… [cited by applicant]
EQuipped GR24-T 24″ Gas Griddle—Thermostatic, 3/4″ Steel Plate, Natural Gas, dated Sep. 19, 2019, 5 pages. [cited by applicant]
“Expert Grill Atlas Pellet Grill and Smoker,” Walmart [online], [site visited Oct. 6, 2021], Retrieved from Internet: URL: https://www.walmart.com/ip/Expert-Grill-Atlas-Pellet-Grill-and-Smoker/808216815, 13 pages. [cited by applicant]
Home Depot, “Dyna-Glo 4-Burner Propane Gas Grill in Stainless Steel with Griddle- DGX440SGP,” Retrieved from internet URL: https://www.homedepot.com/p/Dyna-Glo-4-Burner-Propane-Gas-Grill-in-Stainless-Steel-with-Griddle-… [cited by applicant]
Lowes., “Blackstone 3-Burner Natural Gas or Liquid Propane Flat Top Grill,” Retrieved from internet URL: https://www.lowes.com/pd/Blackstone-Culinary-3-Burner-30-In-with-Hood/1003254674, site visited on Nov. 11, 2021, 6… [cited by applicant]
“The GMG Difference: How A Pellet Grill Works,” dated Sep. 23, 2019, 10 pages. [cited by applicant]
The Spruce Eats., “Weber Genesis II E-210 Propane Grill Review,” Jul. 23, 2019, Retrieved from Internet URL: https://www.thespruceeats.com/weber-genesis-ii-e-210-propane-grill-review-4694327, on Sep. 19, 2019, 17 pages. [cited by applicant]
Walmart., “Expert Grill Commodore Pellet Grill and Smoker,” Retrieved from Internet URL: https://www.walmart.com/ip/Expert-Grill-Cornrnodore-Pellet-Grill-and-Smoker/675237961, retrieved on Oct. 6, 2021, 12 pages. [cited by applicant]
Walmart, “Expert Grill Concord 3-in-1 Pellet Grill, Smoker, and Propane Gas Griddle, ”Retrieved from internet URL: https://www.walmart.com/ip/Expert-Grill-Concord-3-In-1-Pellet-Grill-Smoker-and-Propane-Gas-Griddle/50599… [cited by applicant]
Walmart., “Expert Grill Pioneer 28-Inch Portable Propane Gas Griddle,” Retrieved from Internet URL: https://www.walmart.com/ip/Expert-Grill-Pioneer-28-Inch-Portable-Propane-Gas-Griddle/768889699?athbdg=L1300, Retrieved … [cited by applicant]
Walmart., “Pit Boss Platinum KC Combo, Wi-Fi and Bluetooth Wood Pellet and Gas Grill,” Retrieved from Internet URL: https://www.walmart.com/ip/Pit-Boss-Platinum-KC-Combo-Wifi-and-Bluetooth-Wood-Pellet-and-Gas-Grill/7166… [cited by applicant]
Walmart.com., “George Foreman Dual Surface Griddle and Grill, GFG240X,” dated Sep. 18, 2019, 17 pages. [cited by applicant]
Zhang, Mengxiang, “Office Action & Search Report”, Chinese Application No. 2021110409556, mailed Jul. 31, 2025, 12 pages. [cited by applicant]