IP Library Granted Patent US 8,633,271
Granted Patent B2
US 8,633,271 · App. 13/059,688 · Granted Jan 21, 2014

Plastic part, specifically a cage for a bearing, consisting of a radiation-crosslinkable plastic material, and method for the production thereof

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Quick Facts
Patent No.
US 8,633,271
App. No.
13/059,688
Granted
Jan 21, 2014
Kind
B2
Abstract

A plastic part, especially a bearing part, specifically a cage for receiving rolling bodies of a bearing. The body of the plastic part is essentially made of a radiation-crosslinkable plastic material. Pigments that undergo a visible change during the irradiation are mixed in with the plastic material. Also, a method is disclosed for producing a plastic part, especially a bearing part, specifically a cage for receiving rolling bodies of a bearing the plastic part that has a body made of a radiation-crosslinkable plastic material.

Claims (15)

1. A plastic part, comprising:

a body of a radiation-crosslinkable plastic material admixed with radiation-crosslinkable plastic pigments that undergo a visually verifiable change during irradiation,

wherein the plastic part is a bearing part, the bearing part being a cage.

2. The plastic part as claimed in claim 1 , wherein the pigments comprise a powder of glasses, precious stones or semiprecious stones.

3. The plastic part as claimed in claim 1 , wherein the pigments comprise organic pigments.

4. The plastic part as claimed in claim 1 , wherein the body has a surface and a type of the pigments varies with a distance from the surface.

5. The plastic part as claimed in claim 1 , wherein the pigments are inducible to become luminescent by the irradiation.

6. The plastic part as claimed in claim 5 , wherein the pigments are inducable by phosphorescent or fluorescent irradiation.

7. A method for producing a plastic part having a body of a radiation-crosslinkable plastic material, comprising the steps:

admixing pigments in the radiation-crosslinkable plastic material as an irradiation indicator,

wherein the plastic part is a bearing part, the bearing part being a cage.

8. A method for producing a plastic part having a body of a radiation-crosslinkable plastic material, comprising the following steps:

providing a mixture of the radiation-crosslinkable plastic material and a pigment; and

radiation-crosslinking the mixture,

wherein the plastic part is a bearing part, the bearing part being a cage.

Assignments (5)
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED ON REEL 037732 FRAME 0347. ASSIGNOR(S) HEREBY CONFIRMS THE APP. NO. 14/553248 SHOULD BE APP. NO. 14/553258. Recorded Oct 11, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 040404/0530 →
MERGER AND CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES AG & CO. KG; SCHAEFFLER VERWALTUNGS 5 GMBH
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 037732/0228 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037732/0347 →
CHANGE OF NAME Recorded Jul 11, 2012
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 028533/0036 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 24, 2011
From: GRUNAU, ARBOGAST; SCHWARZ, SERGEJ
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 026329/0748 →