IP Library Granted Patent US 12666559
Granted Patent B2
US 12666559 · App. 18/653,710 · Granted Jun 23, 2026

Systems and methods for combined retention of riser assemblies and expansion cards housed therein

Inventors: Megan Cherie Wingfield (Box Elder, SD); Eduardo Escamilla (Round Rock, TX)
Assignee: Dell Products L.P.
H05K7/1489
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Quick Facts
Patent No.
US 12666559
App. No.
18/653,710
Granted
Jun 23, 2026
Kind
B2
Abstract

An information handling system may include a chassis and an information handling resource assembly configured to carry one or more information handling resources. The information handling resource assembly may include a first latch and a second latch configured to mechanically couple to an alignment feature mechanically coupled to the chassis such that the first latch retains the information handling resource assembly within the chassis, and the second latch retains the one or more information handling resources in the information handling resource assembly.

Claims (47)

1 . An information handling system comprising: a chassis; and an information handling resource assembly configured to carry one or more information handling resources, wherein the information handling resource assembly comprises:

a first latch configured to retain the information handling resource assembly within the chassis; and

a second latch slidably coupled to the information handling resource assembly and configured to translate between:

a closed position, wherein the second latch inserts into the first latch such that the first latch and the second latch are configured to mechanically couple to an alignment feature mechanically coupled to the chassis and protruding through a motherboard; and

an open position, wherein the second latch is removed from the first latch and the information handling resource assembly is configured to receive the one or more information handling resources.

2 . The information handling system of claim 1 , wherein:

the first latch comprises:

an opening configured to receive the alignment feature; and

a hook structure configured to mechanically couple to the alignment feature; and

the second latch comprises:

a first structure slidably coupled to the information handling resource assembly and configured to translate between the open position and the closed position; and

an arm extending from the first structure, wherein the arm comprises an opening configured to receive the alignment feature, and wherein the arm is configured to insert into the first latch such that the opening of the arm aligns with the opening of the first latch in the closed position.

3 . The information handling system of claim 2 , wherein misalignment of the opening of the arm and the opening of the first latch prevents mechanical coupling of the first latch and the second latch with the alignment feature.

4 . The information handling system of claim 2 , wherein the first structure of the second latch comprises a pair of rails configured to couple to one or more bearings mechanically coupled to the information handling resource assembly such that the second latch is configured to translate between the open position and the closed position via the pair of rails.

5 . The information handling system of claim 2 , the second latch further comprising a second structure extending substantially perpendicular from the first structure and configured to retain the one or more information handling resources in the information handling resource assembly.

6 . A combined retention feature comprising:

a first latch configured to retain an information handling resource assembly within a chassis; and

a second latch configured to slidably couple to the information handling resource assembly and further configured to translate between:

a closed position, wherein the second latch inserts into the first latch such that the first latch and the second latch are configured to mechanically couple to an alignment feature mechanically coupled to the chassis and protruding through a motherboard; and

an open position, wherein the second latch is removed from the first latch and the information handling resource assembly is configured to receive the one or more information handling resource.

7 . The combined retention feature of claim 6 , wherein:

the first latch comprises:

an opening configured to receive the alignment feature; and

a hook structure configured to mechanically couple to the alignment feature; and

the second latch comprises:

a first structure configured to slidably couple to the information handling resource assembly and configured to translate between the open position and the closed position; and

an arm extending from the first structure, wherein the arm comprises an opening configured to receive the alignment feature, and wherein the arm is configured to insert into the first latch such that the opening of the arm aligns with the opening of the first latch in the closed position.

8 . The combined retention feature of claim 7 , wherein misalignment of the opening of the arm and the opening of the first latch prevents mechanical coupling of the first latch and the second latch with the alignment feature.

9 . The combined retention feature of claim 7 , wherein the first structure of the second latch comprises a pair of rails configured to couple to one or more bearings mechanically coupled to the information handling resource assembly such that the second latch is configured to translate between the open position and the closed position via the pair of rails.

10 . The combined retention feature of claim 7 , the second latch further comprising a second structure extending substantially perpendicular from the first structure and configured to retain the one or more information handling resources in the information handling resource assembly.

11 . A method of forming a combined retention feature comprising:

mechanically coupling a first latch to an information handling resource assembly, wherein the information handling resource assembly is configured to carry one or more information handling resources; and mechanically coupling a second latch to the information handling resource assembly;

wherein:

the first latch is configured to retain the information handling resource assembly within the chassis; and

the second latch is slidably coupled to the information handling resource assembly and configured to translate between:

a closed position, wherein the second latch inserts into the first latch such that the first latch and the second latch are configured to mechanically couple to an alignment feature mechanically coupled to the chassis and protruding through a motherboard; and

an open position, wherein the second latch is removed from the first latch and the information handling resource assembly is configured to receive the one or more information handling resources.

12 . The method of claim 11 , wherein:

the first latch comprises:

an opening configured to receive the alignment feature; and

a hook structure configured to mechanically couple to the alignment feature; and

the second latch comprises:

a first structure configured to slidably couple to the information handling resource assembly and configured to translate between the open position and the closed position; and

an arm extending from the first structure, wherein the arm comprises an opening configured to receive the alignment feature, and wherein the arm is configured to insert into the first latch such that the opening of the arm aligns with the opening of the first latch in the closed position.

13 . The method of claim 12 , wherein misalignment of the opening of the arm and the opening of the first latch prevents mechanical coupling of the first latch and the second latch with the alignment feature.

14 . The method of claim 12 , wherein the first structure of the second latch comprises a pair of rails configured to couple to one or more bearings mechanically coupled to the information handling resource assembly such that the second latch is configured to translate between the open position and the closed position via the pair of rails.

15 . The method of claim 12 , the second latch further comprising a second structure extending substantially perpendicular from the first structure and configured to retain the one or more information handling resources in the information handling resource assembly.