# US 11,898,759 B2 · Twist release mechanism for a multi-pane door assembly

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- Number: US 11,898,759 B2
- Document ID: US11898759B2
- Status: Granted
- Kind: B2
- Application number: 17/313,197
- Filed: 2021-05-06
- Published: 2022-11-10
- Granted: 2024-02-13
- Earliest claimed: 2021-05-06
- Assignees: Haier US Appliance Solutions, Inc.
- Applicants: Haier US Appliance Solutions, Inc.
- Inventors: Daniel Ian Moore; John Adam Yantis
- Web page: https://patentgrep.com/patent/US11898759B2

## CPC

- F24C 15/022: {Latches}
- F24C 15/024: {Handles}
- E05B 15/0205: {Striking-plates, keepers, staples (means for reducing friction E05B17/007; electric strikers E05B47/0046; staples for padlocks E05B67/383; strikers for espagnolettes E05C9/1808)}
- E05C 3/124: {with latch under compression force between its pivot and the striker (E05C3/122, E05C3/14, E05C3/16 and E05B65/0852 take precedence)}
- E05C 3/14: with operating handle or equivalent member rigid with the latch {(E05C3/122 takes precedence)}
- E05C 3/30: in the form of a hook {(hook-like fastenings E05C19/10; locks for sliding wings with pivoting bolts E05B65/0811, E05B65/0835)}
- E05C 7/02: for wings which lie one behind the other when closed {(E05C7/002 takes precedence)}
- F24C 15/023: {Mounting of doors, e.g. hinges, counterbalancing}
- F24C 15/045: {being dismountable, e.g. giving access for cleaning}
- E05Y 2900/308: for ovens
- F24C: DOMESTIC STOVES OR RANGES (exclusively for solid fuels F24B); DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- E05B: LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05C: BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS (latching means for sideboard or tailgate structures for vehicles B62D, {B62D33/02}; fastening devices for constructional or engineering elements E04, F16B; locks, fastening devices structurally or operatively combined or having significant cooperation with locks E05B; means for operating or controlling wing fasteners in conjunction with mechanisms for moving the wing E05F)
- E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF

## Abstract

A door assembly includes an inner door panel and an outer door panel pivotable with respect to the inner door panel, the inner door panel including a latch base. The outer door panel includes a handle assembly including a handle endcap, a handle body rotatable with respect to the handle endcap, and a latch bar connected with the handle body, the latch bar being detachably coupled to the latch base. The outer door panel is rotatable with respect to the inner door panel, such that the outer door panel can be rotated away from the inner door panel.

## Claims

### Claim 1

A door assembly defining a vertical direction, a lateral direction, and a transverse direction, the door assembly comprising:
an inner door panel;
a latch base fixed to the inner door panel;
an outer door panel pivotally connected to the inner door panel; and
a handle assembly attached to the outer door panel, wherein the handle assembly comprises:
a handle endcap attached to an outer surface of the outer door panel;
a handle body connected with the handle endcap, the handle body being rotatable with respect to the handle endcap; and
a latch bar extending from the handle body such that the latch bar rotates together with the handle body, the latch bar being detachably coupled to the latch base through the handle endcap, the inner door panel, and the outer door panel.

### Claim 2 (depends on 1)

The door assembly of claim 1, further comprising a resilient member biasing the latch bar into engagement with the latch base.

### Claim 3 (depends on 2)

The door assembly of claim 2, wherein the resilient member is a compression spring biasing the latch bar in the vertical direction.

### Claim 4 (depends on 1)

The door assembly of claim 1, wherein the latch bar is fixed to the handle body and comprises:
an aperture formed laterally through a first end of the latch bar, the aperture defining a keyed portion; and
a hook extending from a second end in the vertical direction, the second end being opposite the first end along the transverse direction.

### Claim 5 (depends on 4)

The door assembly of claim 4, wherein the handle assembly further comprises a shaft extending laterally from the handle body, the shaft connecting the handle body with the latch bar through the handle endcap via the aperture.

### Claim 6 (depends on 5)

The door assembly of claim 5, wherein the shaft is shaped complimentary to the keyed portion of the aperture such that the latch bar rotates together with the shaft when the handle body is rotated.

### Claim 7 (depends on 6)

The door assembly of claim 6, wherein the shaft is coaxial with the handle body.

### Claim 8 (depends on 4)

The door assembly of claim 4, wherein the latch base comprises a catch extending in the transverse direction, the catch comprising a lip extending in the vertical direction from a distal end of the catch.

### Claim 9 (depends on 8)

The door assembly of claim 8, wherein the lip defines a front face, and wherein a bottom end of the front face is located further forward than a top end of the front face in the transverse direction.

### Claim 10 (depends on 1)

The door assembly of claim 1, wherein the handle endcap is a first handle endcap, the latch bar is a first latch bar, and the latch base is a first latch base, the handle assembly further comprising:
a second handle endcap opposite the first handle endcap along the lateral direction,
a second latch base opposite the first latch base along the lateral direction, and
a second latch bar opposite the first latch bar along the lateral direction, the second latch bar being detachably coupled to the second latch base through the second handle endcap.

### Claim 11

A home appliance defining a vertical direction, a lateral direction, and a transverse direction, the home appliance comprising:
a body defining a cavity; and
a door assembly pivotally attached to the body for opening and closing the cavity, the door assembly comprising:
an inner door panel;
a latch base fixed to the inner door panel;
an outer door panel pivotally connected to the inner door panel; and
a handle assembly attached to the outer door panel, wherein the handle assembly comprises:
a handle endcap attached to an outer surface of the outer door panel;
a handle body connected with the handle endcap, the handle body being rotatable with respect to the handle endcap; and
a latch bar extending from the handle body such that the latch bar rotates together with the handle body, the latch bar being detachably coupled to the latch base through the handle endcap, the inner door panel, and the outer door panel.

### Claim 12 (depends on 11)

The home appliance of claim 11, wherein the handle assembly further comprises a resilient member biasing the latch bar into engagement with the latch base.

### Claim 13 (depends on 12)

The home appliance of claim 12, wherein the resilient member is a compression spring biasing the latch bar in the vertical direction.

### Claim 14 (depends on 11)

The home appliance of claim 11, wherein the latch bar is fixed to the handle body and comprises:
an aperture formed laterally through a first end of the latch bar, the aperture defining a keyed portion; and
a hook extending from a second end in the vertical direction, the second end being opposite the first end along the transverse direction.

### Claim 15 (depends on 14)

The home appliance of claim 14, wherein the handle assembly further comprises a shaft extending laterally from the handle body, the shaft connecting the handle body with the latch bar through the handle endcap via the aperture.

### Claim 16 (depends on 15)

The home appliance of claim 15, wherein the shaft is shaped complimentary to the keyed portion of the aperture such that the latch bar rotates together with the shaft when the handle body is rotated.

### Claim 17 (depends on 16)

The home appliance of claim 16, wherein the shaft is coaxial with the handle body.

### Claim 18 (depends on 14)

The home appliance of claim 14, wherein the latch base comprises a catch extending in the transverse direction, the catch comprising a lip extending in the vertical direction from a distal end of the catch.

### Claim 19 (depends on 18)

The home appliance of claim 18, wherein the lip defines a front face, and wherein a bottom end of the front face is located further forward than a top end of the front face in the transverse direction.

### Claim 20 (depends on 11)

The home appliance of claim 11, wherein the handle endcap is a first handle endcap, the latch bar is a first latch bar, and the latch base is a first latch base, the handle assembly further comprising:
a second handle endcap opposite the first handle endcap along the lateral direction,
a second latch base opposite the first latch base along the lateral direction, and
a second latch bar opposite the first latch bar along the lateral direction, the second latch bar being detachably coupled to the second latch base through the second handle endcap.