US3781555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra-high molecular weight polyolefin optical reader tip
Assignee: Avery Dennison Retail Information Services LLC
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Filing: 1973-01-02
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Granted: 1973-12-25
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Expires: 1993-01-02
Abstract
Abstract There is disclosed an optical reader for reading a record having a wear resistant pen tip made from ultra-high molecular weight polyolefin such as polyethylene of about 1 X 106 to about 6 X 106 M.W. The user can hold the reader in his one hand and scan a binary coded record. In one embodiment, the pen has an elongated housing for mounting a record illuminator, a lens for gathering light reflected or diffused from the record, a mask having an aperture, and a light receptor spaced from the aperture which receives light passing through the aperture. In another embodiment, the polyolefin tip has optical fibers molded therein for transmitting light from the record to a light sensing means. The housing carries a removable, replaceable, tip which is composed of ultra-high molecular weight polyolefin having a low coefficient of friction and a natural lubricity.
Inventors
- 👤 J Keefe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:20
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10881
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
44 words
An optical reader for scanning a record member, comprising a housing having a tip which contacts the record member when the optical reader is in use, the tip being made of a polyolefin having a molecular weight of at least about 1 X 106.
Claim 2
Dependent Claim
44 words
An optical reader for scanning a record member, comprising a housing having a tip which contacts the record member when the optical reader is in use, the tip being made of a polyolefin having a molecular weight of at least about 1 X 106.
Claim 3
Dependent Claim
32 words
An optical reader as defined in claim 1 wherein the tip is made of polyethylene having a molecular weight in the range of about 1.5 X 106 to about 6 X 106.
Claim 4
Dependent Claim
21 words
An optical reader as defined in claim 1 in which said polyolefin tip has at least one optical fiber molded therein.
Claim 5
Dependent Claim
21 words
An optical reader as defined in claim 1 which also comprises means for removably mounting the tip member to the housing.
Claim 6
Dependent Claim
16 words
An optical reader as defined in claim 1 further comprising means for illuminating the record member.
Claim 7
Dependent Claim
33 words
An optical reader as defined in claim 6 in which said record illuminating means comprises optical fibers having one end directed at a light source and another end directed at the record member.
Claim 8
Dependent Claim
18 words
An optical reader as defined in claim 7 wherein said record illuminating means are mounted within the housing.
Claim 9
Dependent Claim
104 words
An optical reader for scanning a record member comprising a housing and a tip having a record contacting face acting as a guide member when the optical reader is in use, wherein the tip is made from polyolefin having a molecular weight of at least about 1.5 X 106, and wherein the tip has molded therein a first optical fiber extending from a light source to the record contacting edge for illuminating the record member, and wherein the tip has molded therein a second optical fiber extending from the record contacting face to a means for sensing light conducted through the second optical fiber.
Claim 10
Dependent Claim
104 words
An optical reader for scanning a record member comprising a housing and a tip having a record contacting face acting as a guide member when the optical reader is in use, wherein the tip is made from polyolefin having a molecular weight of at least about 1.5 X 106, and wherein the tip has molded therein a first optical fiber extending from a light source to the record contacting edge for illuminating the record member, and wherein the tip has molded therein a second optical fiber extending from the record contacting face to a means for sensing light conducted through the second optical fiber.
Claim 11
Dependent Claim
16 words
An optical reader as in claim 9 in which said tip is removable from the housing.
Claim 12
Dependent Claim
30 words
An optical reader as defined in claim 9 wherein the tip is polyethylene having a molecular weight in the range of about 1.5 X 106 to about 6 X 106.
Claim 13
Dependent Claim
40 words
In an optical reader for scanning a record member having a housing, a photodetector and a record contacting tip, the improvement comprising a record contacting tip made from a polyolefin having a molecular weight of at least 1 X 106.
Claim 14
Dependent Claim
40 words
In an optical reader for scanning a record member having a housing, a photodetector and a record contacting tip, the improvement comprising a record contacting tip made from a polyolefin having a molecular weight of at least 1 X 106.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |