US3912928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanently coded polymeric compound and method of coding and identifying same
Assignee: Dayco Products LLC
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Filing: 1974-05-06
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Granted: 1975-10-14
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Expires: 1994-05-06
Abstract
Abstract A permanently coded polymeric compound and method of permanently coding and identifying same is provided and such method includes the steps of dispersing particles of a particular phosphor throughout the polymeric compound during compounding thereof to provide a coded compound, freshly exposing a surface of the permanently coded compound after provision thereof, subjecting the freshly exposed surface to a source of radiant energy causing the particles to absorb the radiant energy and thereby cause excitation thereof, whereupon the excited phosphor particles emit radiant energy which is identified to thereby identify the particular phosphor and thus its polymeric compound.
Inventors
- 👤 James B Rush
- 👤 Arthur D Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:22
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/63; G01N21/64; G01N21/6428; G01N21/643; C; C08; C08K; C08K3/00; C08K3/02
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
102 words
A METHOD OF PERMANENTLY CODING AND IDENTIFYING A PARTICULR POLYMERIC COMPOUND USING PHOSPHOR PARTICLES TO PROVIDE THE CODING COMPRISING THE STEPS OF, DISPERSING PARTICULES OF A PARTICULAR PHOSPHOR THROUGHTOUT SAID POLYMERIC COMPOUND DURING COMPOUNDING THEREOF TO PROVIDE A CODED COMPOUND, FRESHLY EXPOSING A SURFACE OF THE CODED COMPOUND AFTER PROVISION THEREOF, SUBJECTING THE FRESHLY EXPOSED SURFACE TO A SOURCE OF RADIANT ENERGY CAUSING SAID PARTICULS TO ABSORB SAID RADIANT ENERGY TO PROVIDE EXCITATION THEREOF AND ALLOWING SAD EXCITED PHOSPHOR PARTICLES TO EMIT RADIANT ENERGY WHICH ISIDENTIFIABLE, AND IDENTIFING SAID EMITTED RADIANT ENERGY TO IDENTIFY SAID PARTICULAR PHOSPHOR AND THUS ITS POLYMERIC COMPOUND.
Claim 2
Independent Claim
102 words
A METHOD OF PERMANENTLY CODING AND IDENTIFYING A PARTICULR POLYMERIC COMPOUND USING PHOSPHOR PARTICLES TO PROVIDE THE CODING COMPRISING THE STEPS OF, DISPERSING PARTICULES OF A PARTICULAR PHOSPHOR THROUGHTOUT SAID POLYMERIC COMPOUND DURING COMPOUNDING THEREOF TO PROVIDE A CODED COMPOUND, FRESHLY EXPOSING A SURFACE OF THE CODED COMPOUND AFTER PROVISION THEREOF, SUBJECTING THE FRESHLY EXPOSED SURFACE TO A SOURCE OF RADIANT ENERGY CAUSING SAID PARTICULS TO ABSORB SAID RADIANT ENERGY TO PROVIDE EXCITATION THEREOF AND ALLOWING SAD EXCITED PHOSPHOR PARTICLES TO EMIT RADIANT ENERGY WHICH ISIDENTIFIABLE, AND IDENTIFING SAID EMITTED RADIANT ENERGY TO IDENTIFY SAID PARTICULAR PHOSPHOR AND THUS ITS POLYMERIC COMPOUND.
Claim 3
Dependent Claim
18 words
A method as set forth in claim 1 in which said identifying step is achieved by visual means.
Claim 4
Dependent Claim
30 words
A method as set forth in claim 1 in which said dispersing step comprises dispersing particles of an inorganic phosphor which is chemically inert with respect to said polymeric compound.
Claim 5
Dependent Claim
37 words
A method as set forth in claim 1 in which said dispersing step comprises dispersing particles of an inorganic phosphor which is chemically inert with respect to said polymeric compound and is staBle at temperatures below 400*F.
Claim 6
Dependent Claim
35 words
A method as set forth in claim 1 in which said dispersing step comprises dispersing particles of said particular phosphor each having a size generally of the order of 25 microns median diameter and less.
Claim 7
Dependent Claim
22 words
A method as set forth in claim 1 in which said step of freshly exposing is achieved during processing of said compound.
Claim 8
Dependent Claim
27 words
A method as set forth in claim 1 in which said step of freshly exposing is achieved after said compound has been made into an end product.
Claim 9
Dependent Claim
26 words
A method as set forth in claim 1 in which said dispersing step is achieved during compounding of said polymeric compound in a mill mix cycle.
Claim 10
Dependent Claim
19 words
A method as set forth in claim 1 in which said identifying step is achieved using optical visualization techniques.
Claim 11
Dependent Claim
36 words
A method as set forth in claim 1 in which said subjecting step comprises subjecting the freshly exposed surface to a source of radiant energy which is confined to the ultraviolet portion of the electromagnetic spectrum.
Claim 12
Independent Claim
99 words
A method of permanently coding and identifying a particular elastomeric compound using phosphor particles to provide the coding comprising the steps of, dispersing particles of a particular phosphor throughout said elastomeric compound during compounding thereof to provide a coded compound, freshly exposing a surface of the coded compound after provision thereof, subjecting the freshly exposed surface to a source of ultraviolet radiation causing said particles to absorb said radiation to provide momentary excitation thereof and allowing said excited phosphor particles to emit visible radiation, and identifying the emitted visible radiation to identify said particular phosphor and its elastomeric compound.
Claim 13
Independent Claim
99 words
A method of permanently coding and identifying a particular elastomeric compound using phosphor particles to provide the coding comprising the steps of, dispersing particles of a particular phosphor throughout said elastomeric compound during compounding thereof to provide a coded compound, freshly exposing a surface of the coded compound after provision thereof, subjecting the freshly exposed surface to a source of ultraviolet radiation causing said particles to absorb said radiation to provide momentary excitation thereof and allowing said excited phosphor particles to emit visible radiation, and identifying the emitted visible radiation to identify said particular phosphor and its elastomeric compound.
Claim 14
Dependent Claim
20 words
A method as set forth in claim 11 in which said identifying step is achieved visually using dark room means.
Claim 15
Dependent Claim
38 words
A method as set forth in claim 11 in which said dispersing step comprises dispersing particles of an inorganic phosphor which is stable at temperatures below 400*F and which is chemically inert with respect to said elastomeric compound.
Claim 16
Dependent Claim
34 words
A method as set forth in claim 13 in which said dispersing step comprises dispersing particles of said particular phosphor having a size generally of the order of 25 microns median diameter and less.
Claim 17
Dependent Claim
29 words
A method as set forth in claim 4 in which said step of freshly exposing is achieved after said compound has been used to make an endless conveying belt.
Claim 18
Dependent Claim
30 words
A method as set forth in claim 14 in which said step of freshly exposing is achieved after said compound has been used to make an endless power transmission belt.
Claim 19
Dependent Claim
28 words
A method as set forth in claim 14 in which said step of freshly exposing is achieved after said compound has been used to make a hose construction.
Claim 20
Dependent Claim
25 words
A method as set forth in claim 15 in which said dispersing step is achieved during compounding of said elastomeric compound in a Banbury mixer.
Claim 21
Dependent Claim
37 words
A method as set forth in claim 11 in which said elastomeric compound is a rubber compound and comprising the further step of vulcanizing said rubber compound prior to said step of freshly exposing a surface thereof.
Claim 22
Dependent Claim
65 words
A permanently coded polymeric compound having particles of a particular phosphor dispersed therethrough in a random manner, said particles being particularly adapted to be excited upon freshly exposing a surface of said compound and subjecting the freshly exposed surface to a source of radiant energy so that said particles emit radiant energy which is identifiable to thereby enable identification thereof and of its polymeric compound.
Claim 23
Dependent Claim
65 words
A permanently coded polymeric compound having particles of a particular phosphor dispersed therethrough in a random manner, said particles being particularly adapted to be excited upon freshly exposing a surface of said compound and subjecting the freshly exposed surface to a source of radiant energy so that said particles emit radiant energy which is identifiable to thereby enable identification thereof and of its polymeric compound.
Claim 24
Dependent Claim
19 words
A compound as set forth in claim 20 in which said permanently coded polymeric compound is an elastomeric compound.
Claim 25
Dependent Claim
22 words
A compound as set forth in claim 21 in which said elastomeric compound comprises a part of an endless power transmission belt.
Claim 26
Dependent Claim
20 words
A compound as set forth in claim 21 in which said elastomeric compound comprises a part of a hose construction.
Claim 27
Dependent Claim
40 words
A compound as set foRth in claim 21 in which said particles of said particular phosphor are particles of an inorganic phosphor which is chemically inert with respect to said elastomeric compound and is stable at temperatures below 400* F.
Claim 28
Dependent Claim
30 words
A compound as set forth in claim 24 in which said particles of an inorganic phosphor have a size generally of the order of 25 microns median diameter and less.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |