Patent US3879141A successfully refreshed from Google Patents.
US3879141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for applying a viscous liquid
Assignee: Individual
•
Filing: 1973-10-10
•
Granted: 1975-04-22
•
Expires: 1993-10-10
Abstract
Abstract An improved instrument and system for writing three dimensional forms with a viscous material that hardens when exposed to air. In accordance with the invention there is provided a flexible tubular body for containing the viscous material, the body having a closed end and a dispensing end. Further provided is a dispensing member having a relatively wide mouth portion which is removably secured to the dispensing end of the body, the mouth portion narrowing circumferentially to form an apertured writing tip. The dispensing member includes and elongated channel which forms a communicating passage between the body and the aperture of the writing tip. Also, an annular protrusion at the writing tip forms a guide lip which is adapted to contact a writing surface during use of the instrument. In a preferred embodiment of the invention the material in the body to be dispensed includes polyvinyl acetate.
Inventors
- 👤 Valerie Shulman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:37
CPC Classifications
B; B43; B43K; B43K8/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
128 words
An instrument for applying viscous fluid in the form of writing, comprising: a flexible tubular body having a closed end and a dispensing end; a viscous fluid contained in said body, said fluid including polyvinyl acetate, and a dispensing member having a relatively wide mouth portion which is secured to the dispensing end of said body, said mouth portion narrowing circumferentially to form an apertured writing tip, said dispensing member including: an elongated channel forming a communicating passage between said body and the aperture of said writing tip; and an annular protrusion at said writing tip forming a guide lip which is adapted to contact said writing surface, said protrusion having at least one slot therein adapted to form the shape of the material dispensed from said tip.
Claim 2
Dependent Claim
128 words
An instrument for applying viscous fluid in the form of writing, comprising: a flexible tubular body having a closed end and a dispensing end; a viscous fluid contained in said body, said fluid including polyvinyl acetate, and a dispensing member having a relatively wide mouth portion which is secured to the dispensing end of said body, said mouth portion narrowing circumferentially to form an apertured writing tip, said dispensing member including: an elongated channel forming a communicating passage between said body and the aperture of said writing tip; and an annular protrusion at said writing tip forming a guide lip which is adapted to contact said writing surface, said protrusion having at least one slot therein adapted to form the shape of the material dispensed from said tip.
Claim 3
Dependent Claim
128 words
AN INSTRUMENT FOR APPLYING VISCOUS FLUID IN THE FORM OF WRITING, COMPRISING: A FLEXIBLE TUBULAR BODY HAVING A CLOSED END AND A DISPENSING END; A VISCOUS FLUID CONTAINED IN SAID BODY, SAID FLUID INCLUDING POLYVINYL ACETATE, AND A DISPENSING MEMBER HAVING A RELATIVELY WIDE MOUTH PORTION WHICH IS SECURED TO THE DISPENSING END OF SAID BODY, SAID MOUTH PORTION NARROWING CIRCUMFERENTIALLY TO FORM AN APERTURED WRITING TIP, SAID DISPENSING MEMBER INCLUDING: AN ELONGATED CHANNEL FORMING A COMMUNICATING PASSAGE BETWEEN SAID BODY AND THE APERTURE OF SAID WRITING TIP; AND AN ANNULAR PROTRUSION AT SAID WRITING TIP FORMING A GUIDE LIP WHICH IS ADAPTED TO CONTACT SAID WRITING SURFACE, SAID PROTRUSION HAVING AT LEAST ONE SLOT THEREIN ADAPTED TO FORM THE SHAPE OF THE MATERIAL DISPENSED FROM SAID TIP.
Claim 4
Dependent Claim
128 words
AN INSTRUMENT FOR APPLYING VISCOUS FLUID IN THE FORM OF WRITING, COMPRISING: A FLEXIBLE TUBULAR BODY HAVING A CLOSED END AND A DISPENSING END; A VISCOUS FLUID CONTAINED IN SAID BODY, SAID FLUID INCLUDING POLYVINYL ACETATE, AND A DISPENSING MEMBER HAVING A RELATIVELY WIDE MOUTH PORTION WHICH IS SECURED TO THE DISPENSING END OF SAID BODY, SAID MOUTH PORTION NARROWING CIRCUMFERENTIALLY TO FORM AN APERTURED WRITING TIP, SAID DISPENSING MEMBER INCLUDING: AN ELONGATED CHANNEL FORMING A COMMUNICATING PASSAGE BETWEEN SAID BODY AND THE APERTURE OF SAID WRITING TIP; AND AN ANNULAR PROTRUSION AT SAID WRITING TIP FORMING A GUIDE LIP WHICH IS ADAPTED TO CONTACT SAID WRITING SURFACE, SAID PROTRUSION HAVING AT LEAST ONE SLOT THEREIN ADAPTED TO FORM THE SHAPE OF THE MATERIAL DISPENSED FROM SAID TIP.
Claim 5
Dependent Claim
25 words
The system as defined by claim 1 wherein said at least one slot is the end of a longitudinal external groove in said dispensing member.
Claim 6
Dependent Claim
30 words
The system as defined in claim 1 wherein said annular protrusion has a plurality of slots therein, each slot adapted to form the shape of material dispensed from said tip.
Claim 7
Dependent Claim
14 words
The system in accordance with claim 1 wherein said viscous fluid further contains alcohol.
Claim 8
Dependent Claim
21 words
The system in accordance with claim 1 wherein said dispensing member is removably secured to the dispensing end of said body.
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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |