Flexible spring member as well as gas spring assembly and method of manufacture

• US 9,644,701 B2
• Filed: 12/22/2015
• Issued: 05/09/2017
• Est. Priority Date: 08/03/2012
• Status: Active Grant

• Current Assignee: Firestone Industrial Products
• Original Assignee: Firestone Industrial Products
• Inventors: Brookes, Graham R.
• Primary Examiner(s): EMPIE, NATHAN H
• Application Number:
  US14/978,467
• Publication Number:
  US 20160108984A1
• Time in Patent Office: 504 Days
• CPC Class Codes: B60G 11/27 wherein the fluid is a gas
• CPC Class Codes: B60G 2202/152 Pneumatic spring
• CPC Class Codes: B60G 2206/42 Springs
• CPC Class Codes: F16F 2226/02 Surface treatments
• CPC Class Codes: F16F 9/0409 characterised by the wall structure
• CPC Class Codes: F16F 9/05 the flexible wall being of the rolling diaphragm type
• CPC Class Codes: F16F 9/3292 Sensor arrangements

Abstract

Flexible spring members can be dimensioned for securement to an associated gas spring end member. The flexible spring member can be at least partially formed from elastomeric material. The flexible spring member can also include a marking disposed along a surface thereof that includes one or more indicia. The marking can be at least partially formed by an indicia layer and an outer layer. The indicia layer can include one or more quantities of material that at least partially form the one or more indicia. The outer layer can be formed from a quantity of material that is disposed overtop of the indicia layer such that the one or more indicia of the indicia layer are substantially encapsulated. Gas spring assemblies, suspension systems, methods of manufacture and manufacturing systems are also included.

Claims

1. A method of manufacturing a flexible spring member, said method comprising:

providing a flexible spring member including a flexible wall that is at least partially formed from elastomeric material and has a surface; and

,

forming a marking having one or more indicia along said surface, said action of forming a marking including;

applying one or more quantities of colorant material along said surface to form an indicia layer along said surface that at least partially forms the one or more indicia; and

,

applying a quantity of material along said surface to form an outer layer along said surface disposed overtop of said indicia layer such that said one or more indicia are substantially encapsulated.

2. A method according to claim 1, wherein applying said one or more quantities of material along said surface to form said indicia layer include applying said one or more quantities of material on said surface, and applying said quantity of material along said surface to form said outer layer includes applying said quantity of material on said surface outwardly beyond said indicia layer to substantially encapsulate said indicia layer between said surface of said flexible wall and said outer layer.

3. A method according to claim 1, wherein said action of forming a marking includes applying a quantity of material along said flexible wall to form a base layer along said surface, and forming said indicia layer along said surface includes applying said one or more quantities of material along said base layer such that said base layer is interposed between said elastomeric material of said flexible wall and said indicia layer.

4. A method according to claim 3, wherein applying said quantity of material along said surface to form said outer layer includes applying said quantity of material overtop of said indicia layer and along at least a portion of said base layer such that said indicia layer is substantially encapsulated between said outer layer and said base layer.

5. A method according to claim 4, wherein applying said quantity of material of said outer layer overtop of said indicia layer and along at least a portion of said base layer includes applying said quantity of material of said outer layer outwardly beyond said base layer and along said surface of said flexible wall to substantially encapsulate said indicia layer and said base layer between said surface of said flexible wall and said outer layer.

6. A method according to claim 1, wherein at least one of said actions of applying said one or more quantities of colorant material to form said indicia layer and applying said quantity of material to form said outer layer includes dispensing a liquid or semi-solid compound along said surface of said flexible wall.

7. A method according to claim 1 further comprising providing at least a pre-constructed portion of a marking including at least one of said one or more quantities of colorant forming said indicia layer and said quantity of material forming said base layer, and at least one of said actions of applying said one or more quantities of colorant material to form said indicia layer and applying said quantity of material to form said outer layer includes securing said pre-constructed portion of said marking along said surface of said flexible wall.