Master cylinder for brake system
US-9266510-B2 · Feb 23, 2016 · US
Primary piston of a tandem master cylinder
US2016137180A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016137180-A1 |
| Application number | US-201414901311-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 27, 2014 |
| Priority date | Jun 27, 2013 |
| Publication date | May 19, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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A primary piston of a tandem master cylinder includes: a body provided with a skirt, having in the rear thereof a cavity for the plunger and the push rod connected to the brake pedal and in the front a cavity defining the primary chamber. The piston is made of a plastic material and at least one magnet is built into the body of the piston.
First claim
Opening claim text (preview).
1 - 6 . (canceled) 7 . A primary piston for a tandem master cylinder, comprising: a body equipped with a skirt, the body having (i) in the rear, a cavity for a plunger and a pushrod connected to a brake pedal and, (ii) in the front, a cavity delimiting a primary chamber; wherein the piston is made of plastic, and at least one magnet is incorporated into the body of the piston. 8 . The primary piston according to claim 7 , wherein the magnet incorporated in the body of the piston is shaped like an overmolded disk. 9 . The primary piston according to claim 7 , wherein the skirt is continued in the front by an interior peripheral housing in which a magnetic crown is incorporated. 10 . The primary piston according to claim 7 , wherein the plastic material is filled with ferrite fibers in the volume surrounding the incorporated magnet. 11 . The primary piston according to claim 7 , wherein the piston is made of a phenolic resin. 12 . The primary piston according to claim 7 , wherein the plastic material is filled with fibers in a weight ratio of 70-80%.
Assignees
Inventors
Classifications
- B60T11/20Primary
Tandem, side-by-side, or other multiple master cylinder units · CPC title
Pistons; Piston to piston rod assemblies · CPC title
- B60T7/042Primary
by electrical means, e.g. using travel or force sensors · CPC title
Permanent magnets · CPC title
Master control, e.g. master cylinders (master cylinders associated with vacuum boosters B60T13/565) · CPC title
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Frequently asked questions
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- What does patent US2016137180A1 cover?
- A primary piston of a tandem master cylinder includes: a body provided with a skirt, having in the rear thereof a cavity for the plunger and the push rod connected to the brake pedal and in the front a cavity defining the primary chamber. The piston is made of a plastic material and at least one magnet is built into the body of the piston.
- Who is the assignee on this patent?
- Bosch Gmbh Robert
- What technology area does this patent fall under?
- Primary CPC classification B60T11/20. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu May 19 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).