IP Library › Granted Patent US 12,516,822
Granted Patent B1
US 12,516,822 · App. 17/725,994 · Granted Jan 6, 2026

Long-bar latch with enhanced serviceability features

Inventor: I-Chiang Lin (San Mateo, CA)
Assignee: HTI Technology and Industries, Inc.
F24C15/022E05B9/08E05B47/0012F24C14/00
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,516,822
App. No.
17/725,994
Granted
Jan 6, 2026
Kind
B1
Abstract

Provided is a long-bar latch assembly for an appliance such as an oven. The long-bar latch assembly is used during operation of a self-cleaning mode or function of the associated appliance. The long-bar latch assembly provided herein includes features that allows for accurate positioning of the long-bar latch assembly during servicing procedures. It also allows for appliance servicemen to conduct a simpler repair and operate in a more efficient manner when working to repair a long-bar latch assembly that has failed.

Claims (13)

1 . A method for replacing a service replaceable motor and plate subassembly of a long-bar latch for an appliance comprising:

disconnecting a wire harness from a single point connector on the motor and plate subassembly;

removing a self-tapping screw from a self-tapped aperture on the motor and plate subassembly;

inserting a screwdriver into an actuation slot in the motor and plate subassembly and rotating the screwdriver to slide the motor and plate subassembly in a lateral direction to disengage at least one tab on the motor and plate subassembly from a corresponding aperture on a rear bracket of the long-bar latch;

moving the motor and plate subassembly in a downward direction and tilting the motor and plate subassembly to disengage a dog-legged bend of a linkage rod in the long-bar latch from a motor cam aperture located on a motor on the motor and plate subassembly;

removing the motor and plate subassembly from the rear bracket of the long-bar latch;

positioning a new motor and plate subassembly under the rear bracket of the long-bar latch;

moving the new motor and plate subassembly in an upward direction and tilting the new motor and plate subassembly to engage the dog-legged bend of a linkage rod in the long-bar latch to a motor cam aperture located on a motor on the new motor and plate subassembly;

inserting the screwdriver into an actuation slot in the new motor and plate subassembly and

rotating the screwdriver to slide the new motor and plate subassembly in a lateral direction to engage at least one tab on the new motor and plate subassembly to the corresponding aperture on the rear bracket of the long-bar latch;

inserting a self-tapping screw into a non-tapped aperture on the new motor and plate subassembly and tapping a new aperture in the new motor and plate subassembly;

continuing to insert the self-tapping screw by passing the self-tapping screw through a corresponding aperture on the rear bracket of the long-bar latch to engage the new motor and plate subassembly of the rear bracket of the long-bar latch; and

engaging the wire harness to the single point connector on the motor and plate subassembly.

Assignments (2)
SECURITY INTEREST Recorded May 4, 2026
From: HTI TECHNOLOGY AND INDUSTRIES, INC.
To: BARINGS FINANCE LLC, AS AGENT
Reel/Frame 074553/0951 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 21, 2022
From: LIN, I-CHIANG
To: HTI TECHNOLOGY AND INDUSTRIES, INC.
Reel/Frame 059667/0897 →
Continuity (1)
Provisional Application 63177618 · Apr 21, 2021
References Cited (70)
US 3462584A · Guy · 1969 [cited by applicant]
US 4593945A · Arute · 1986 [cited by applicant]
US 4691195A · Sigelman · 1987 [cited by applicant]
US 4927996A · Genbauffe · 1990 [cited by applicant]
US 5220153A · Malone · 1993 [cited by applicant]
US 5516164A · Kobayashi · 1996 [cited by applicant]
US 5746076A · Inoue · 1998 [cited by applicant]
US 5938252A · Jemura · 1999 [cited by applicant]
US 6302098B1 · Smith · 2001 [cited by examiner]
US 6315336B1 · Swartzell · 2001 [cited by applicant]
US 6698418B2 · Ramsey · 2004 [cited by applicant]
US 6709029B2 · Cole · 2004 [cited by applicant]
US 6863316B2 · Cole · 2005 [cited by applicant]
US 7010947B2 · Milo · 2006 [cited by applicant]
US 7036853B2 · Smock · 2006 [cited by examiner]
US 7040674B2 · Lomicka et al. · 2006 [cited by applicant]
US 7066503B2 · Smith · 2006 [cited by examiner]
US 7137387B2 · Edwards · 2006 [cited by applicant]
US 7156428B2 · Smith · 2007 [cited by applicant]
US 7185925B2 · Courter · 2007 [cited by applicant]
US 7334823B2 · Courter · 2008 [cited by applicant]
US 7364209B2 · Lomicka et al. · 2008 [cited by applicant]
US 7726294B2 · Collene · 2010 [cited by applicant]
US 8919828B2 · Barth · 2014 [cited by applicant]
US 9335056B1 · Lomicka et al. · 2016 [cited by applicant]
US 9958167B2 · Lomicka et al. · 2018 [cited by applicant]
US 10806322B2 · Dirnberger · 2020 [cited by applicant]
US 11236911B2 · DeYoung · 2022 [cited by applicant]
US 20030080569A1 · Raymond et al. · 2003 [cited by applicant]
US 20030116975A1 · Cole · 2003 [cited by applicant]
US 20030209042A1 · Yeh · 2003 [cited by examiner]
US 20040140677A1 · Hengelein · 2004 [cited by applicant]
US 20040160070A1 · Huang · 2004 [cited by examiner]
US 20040187858A1 · Ramsey · 2004 [cited by examiner]
US 20050077737A1 · Komiyama · 2005 [cited by applicant]
US 20050284464A1 · Edwards · 2005 [cited by examiner]
US 20060102166A1 · Simmons · 2006 [cited by examiner]
US 20060208502A1 · Parent · 2006 [cited by applicant]
US 20060237974A1 · Hamm · 2006 [cited by applicant]
US 20080030028A1 · Heid et al. · 2008 [cited by applicant]
US 20080169657A1 · Horton · 2008 [cited by applicant]
US 20090091143A1 · Van Parys · 2009 [cited by examiner]
US 20090202286A1 · Hirabayashi · 2009 [cited by applicant]
US 20150330112A1 · Van Wiemeersch · 2015 [cited by applicant]
US 20170145613A1 · Choi · 2017 [cited by applicant]
US 20180371806A1 · Jeong · 2018 [cited by applicant]
US 20190017216A1 · Dirnberger · 2019 [cited by applicant]
US 20190316400A1 · Shin · 2019 [cited by applicant]
US 20190345744A1 · Woo · 2019 [cited by examiner]
US 20200258695A1 · Grimm · 2020 [cited by examiner]
CN 205591791U · 2016 [cited by examiner]
CN 207461774U · 2018 [cited by examiner]
CN 207905531 · 2018 [cited by applicant]
CN 109209084 · 2019 [cited by applicant]
CN 112112500 · 2020 [cited by applicant]
DE 10111085A1 · 2002 [cited by examiner]
DE 102005024588A1 · 2006 [cited by examiner]
DE 202012005738 · 2013 [cited by applicant]
EP 2755283A2 · 2014 [cited by examiner]
EP 2840208 · 2015 [cited by applicant]
ES 289332U · 1986 [cited by examiner]
GB 2027165A · 1980 [cited by examiner]
WO 2010056062 · 2010 [cited by applicant]
WO WO2017192822A1 · 2017 [cited by examiner]
Hex Bolts, Screws that Form their own Threads, 10 pages, https://www.boltsales.com/screws-that-form-their-own-threads/ (Year: 2020). [cited by examiner]
Chinese to English machine translation for CN205591791U. [cited by examiner]
Chinese to English machine translation for CN207461774U. [cited by examiner]
German to English machine translation for DE10111085. [cited by examiner]
German to English machine translation for DE102005024588A1. [cited by examiner]
Spanish to English machine translation for ES289332U. [cited by examiner]