US3893130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recorder pen
Assignee: Northern Illinois Gas Co
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Filing: 1973-07-20
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Granted: 1975-07-01
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Expires: 1993-07-20
Abstract
Abstract A recorder pen device having a closed cartridge or housing in which is enclosed an ink saturated fibrous material. A writing nib is secured to the cartridge with the opening of the nib communicating with the ink saturated material inside the housing. The nib feeds a smoothly flowing trace of ink to a recording chart upon which the point of the nib is in contact. By providing various tip lengths and staggering the pens, clearance is provided so that the pens can move past each other without interfering with their respective operation. In one form of the invention a retainer is provided for supporting the nib in position on the cartridge. A modified form of retainer serves as the one end cap for the cartridge and is adapted to support the nib in one of two positions whereby the cartridge may be mounted in either one of two 180* opposite positions. Two such oppositely mounted pens can be supported to move past each other without interference. The cartridge is disposable requiring no service during a long period of operation.
Inventors
- 👤 Charles A Browning
- 👤 Gilbert G Perrigo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:12
CPC Classifications
B; B43; B43K; B43K8/00; B43K8/02; B43K8/003; G; G01; G01D; G01D15/00; G01D15/16
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
159 words
A recorder pen for a recording instrument comprising a cartridge having a closed chamber, means for maintaining a supply of fluid in said chamber, means for venting said closed chamber, a tubular member carried by the cartridge and having a capillary passageway therethrough communicating with the inside of said chamber, a point formed on said tubular member with said passageway communicating with said point, said fluid in said chamber flowing through said passageway to said point, said cartridge having a channel means formed on one side thereof for receiving the end portion of an arm of the recording instrument, and a retainer having a body portion for closing the one end of the chamber in the cartridge and having a pair of legs extending from said body portion, said legs engaging opposite sides of said cartridge to hold said retainer on said cartridge in said closed relationship, one of said legs extending into retaining relationship with said channel means.
Claim 2
Dependent Claim
159 words
A recorder pen for a recording instrument comprising a cartridge having a closed chamber, means for maintaining a supply of fluid in said chamber, means for venting said closed chamber, a tubular member carried by the cartridge and having a capillary passageway therethrough communicating with the inside of said chamber, a point formed on said tubular member with said passageway communicating with said point, said fluid in said chamber flowing through said passageway to said point, said cartridge having a channel means formed on one side thereof for receiving the end portion of an arm of the recording instrument, and a retainer having a body portion for closing the one end of the chamber in the cartridge and having a pair of legs extending from said body portion, said legs engaging opposite sides of said cartridge to hold said retainer on said cartridge in said closed relationship, one of said legs extending into retaining relationship with said channel means.
Claim 3
Dependent Claim
34 words
A recorder pen as claimed in claim 1 wherein said retainer has a sleeve member on one of said legs, said sleeve member surrounding and supporting said tubular member in position on said cartridge.
Claim 4
Dependent Claim
39 words
A recorder pen as claimed in claim 2 wherein said retainer is reversible so that the tubular member projects from the cartridge either from between the sides of said channel means or from the side opposite said channel means.
Claim 5
Dependent Claim
33 words
A recorder pen as claimed in claim 3 wherein the cartridge may be mounted on the recording instrument arm either with the arm beneath the cartridge or with the arm above the cartridge.
Claim 6
Dependent Claim
46 words
A recorder pen as claimed in claim 1 wherein one leg of said retainer has an opening and a depending sleeve in alignment with said opening, and wherein said tubular member is supported by said sleeve when said tubular member is in position on said cartridge.
Claim 7
Dependent Claim
207 words
A recorder pen for a recording instrument comprising a tube having a closed chamber, means for maintaining a supply of fluid in said chamber, a tubular member carried by the tube and having capillary passageways therethrough communicating with the inside of said chamber, vent means communicating with the inside of said chamber, a point formed on said tubular member with said passageways communicating with said point, said fluid in said chamber flowing through said passageways to said point, and a retainer mounted on said tube and having a sleeve formed thereon for surrounding and supporting said tubular member, said tube having a channel means integrally formed on one side thereof for receiving the end portion of an arm of the recording instrument, said retainer is resiliently urged into one end of said channel means, said depending sleeve being formed on the body of said retainer, said tubular member extending through said sleeve and retainer into said chamber, and means on said retainer forming an abutment for engaging the end of the tube for positioning the tubular member on said tube such that abutting the end of the arm of the recording instrument against said retainer in said channel means properly positions the point relative to the instrument.
Claim 8
Dependent Claim
207 words
A recorder pen for a recording instrument comprising a tube having a closed chamber, means for maintaining a supply of fluid in said chamber, a tubular member carried by the tube and having capillary passageways therethrough communicating with the inside of said chamber, vent means communicating with the inside of said chamber, a point formed on said tubular member with said passageways communicating with said point, said fluid in said chamber flowing through said passageways to said point, and a retainer mounted on said tube and having a sleeve formed thereon for surrounding and supporting said tubular member, said tube having a channel means integrally formed on one side thereof for receiving the end portion of an arm of the recording instrument, said retainer is resiliently urged into one end of said channel means, said depending sleeve being formed on the body of said retainer, said tubular member extending through said sleeve and retainer into said chamber, and means on said retainer forming an abutment for engaging the end of the tube for positioning the tubular member on said tube such that abutting the end of the arm of the recording instrument against said retainer in said channel means properly positions the point relative to the instrument.
Claim 9
Dependent Claim
127 words
A recorder pen for use on a recording instrument comprising a Tube having a closed chamber, fibrous means impregnated with a supply of ink closed in said chamber, means for venting said chamber, a plastic nib carried by the tube and having a capillary passageway therein, a writing point formed on said nib with said passageway communicating between said point and the inside of said closed chamber, said fluid in said chamber flowing through said passageway to said point, channel means formed on said tube exteriorly of said chamber, said channel means being adapted to receive and retain the end portion of a recording arm, retainer means nested in one end of said channel means and having a sleeve formed thereon for surrounding and supporting said nib.
Claim 10
Dependent Claim
127 words
A recorder pen for use on a recording instrument comprising a Tube having a closed chamber, fibrous means impregnated with a supply of ink closed in said chamber, means for venting said chamber, a plastic nib carried by the tube and having a capillary passageway therein, a writing point formed on said nib with said passageway communicating between said point and the inside of said closed chamber, said fluid in said chamber flowing through said passageway to said point, channel means formed on said tube exteriorly of said chamber, said channel means being adapted to receive and retain the end portion of a recording arm, retainer means nested in one end of said channel means and having a sleeve formed thereon for surrounding and supporting said nib.
Claim 11
Dependent Claim
94 words
A recorder pen for use on a recording instrument comprising a tube having a closed chamber, fibrous means impregnated with a supply of ink closed in said chamber, means for venting said closed chamber, a plastic nib carried by the tube and having a capillary passageway therein, a writing point formed on said nib with said passageway communicating between said point and the inside of said closed chamber, said fluid in said chamber flowing through said passageway to said point, and means provided in said chamber for equalizing pressure between the opposite ends thereof.
Claim 12
Dependent Claim
94 words
A recorder pen for use on a recording instrument comprising a tube having a closed chamber, fibrous means impregnated with a supply of ink closed in said chamber, means for venting said closed chamber, a plastic nib carried by the tube and having a capillary passageway therein, a writing point formed on said nib with said passageway communicating between said point and the inside of said closed chamber, said fluid in said chamber flowing through said passageway to said point, and means provided in said chamber for equalizing pressure between the opposite ends thereof.
Claim 13
Dependent Claim
32 words
A recorder pen as claimed in claim 8 wherein said tube has a channel means formed on one side thereof for receiving the end portion of an arm of the recording instrument.
Claim 14
Dependent Claim
22 words
A recorder pen as claimed in claim 9 wherein said tube and channel means are integrally formed as a one-piece plastic member.
Claim 15
Dependent Claim
54 words
A recorder pen as claimed in claim 8 wherein the inner end portion of said nib lies in a plane disposed at an angle to the axis of the nib, said inner end having a component lying parallel to the major axis of the chamber and facing into the major area of the chamber.
Claim 16
Dependent Claim
31 words
A recorder pen as claimed in claim 11 wherein said plane of said inner end portion of said nib forms a 45* angle with respect to the axis of said nib.
Claim 17
Dependent Claim
33 words
A recorder pen as claimed in claim 8 wherein said nib has a longitudinal axis which is disposed at a right angle to the longitudinal axis of said closed chamber in said tube.
Claim 18
Dependent Claim
60 words
A recorder pen as claimed in claim 8 wherein said tube has a plug means force fit into one end of said tube to close the end of said tube, said plug means having an inwardly projecting member which engages with and holds the fibrous means spaced from the juncture between the plug and the inside wall of said tube.
Claim 19
Dependent Claim
206 words
A disposable, continuous capillary recorder pen for recording information on a surface comprising a tube having a closed chamber and a sleeve projecting laterally therefrom, fibrous means substantially filling said closed chamber, said fibrous means being impregnated with a supply of ink, a plastic nib carried by said sleeve on said tube and having a capillary passageway therethrough, vent means between said nib and said tube immediately adjacent said nib to permit pressure equalization in said closed chamber, said nib having the face of one end disposed at an angle with respect to the axis of the nib, said one end of the nib extending into said closed chamber with the angled face projecting toward the bulk of the fibrous means and into engagement with said ink impregnated fibrous means, a writing point formed on said nib with said capillary passageway communicating between said point and the inside of said closed chamber, said ink in said fibrous means being transferred by continuous capillary action from said fibrous means through said capillary passageway to said point and onto said surface regardless of the angle of orientation between said recorder pen and said surface and means provided in said chamber for equalizing pressure between the opposite ends thereof.
Claim 20
Dependent Claim
206 words
A disposable, continuous capillary recorder pen for recording information on a surface comprising a tube having a closed chamber and a sleeve projecting laterally therefrom, fibrous means substantially filling said closed chamber, said fibrous means being impregnated with a supply of ink, a plastic nib carried by said sleeve on said tube and having a capillary passageway therethrough, vent means between said nib and said tube immediately adjacent said nib to permit pressure equalization in said closed chamber, said nib having the face of one end disposed at an angle with respect to the axis of the nib, said one end of the nib extending into said closed chamber with the angled face projecting toward the bulk of the fibrous means and into engagement with said ink impregnated fibrous means, a writing point formed on said nib with said capillary passageway communicating between said point and the inside of said closed chamber, said ink in said fibrous means being transferred by continuous capillary action from said fibrous means through said capillary passageway to said point and onto said surface regardless of the angle of orientation between said recorder pen and said surface and means provided in said chamber for equalizing pressure between the opposite ends thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |