US4093485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming a hot melt adhesive cartridge
Assignee: Dexter Corp
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Filing: 1977-05-31
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Granted: 1978-06-06
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Expires: 1997-05-31
Abstract
Abstract A method for continuously forming a hot melt adhesive cartridge having a non-stick, thermoplastic outer coating. The hot melt adhesive cartridge is formed by extruding a sleeve of non-stick, thermoplastic material having a predetermined outside dimension, cooling the sleeve to cause setting of the thermoplastic and introducing a hot melt adhesive into the set sleeve.
Inventors
- 👤 Robert L. Ornsteen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:19
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/335; B29C48/03; B29C48/06; B29C48/09; B29C48/11; B29C48/304; B29L; B29L2031/00; B29L2031/60; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
92 words
A method for continuously forming a hot melt adhesive cartridge of accurate outside dimension and having a non-stick, thermoplastic outer sleeve comprising the following steps: continuously extruding a hollow sleeve of non-stick, thermoplastic material; sizing said continuously extruded sleeve to a predetermined outside dimension; cooling said sleeve to a solidified set condition; and introducing a hot melt adhesive material into said hollow sleeve by dispensing such material at a point downstream from the initial extrusion of said sleeve, at which point the sleeve has been cooled to a substantially solidified set condition.
Claim 2
Independent Claim
92 words
A method for continuously forming a hot melt adhesive cartridge of accurate outside dimension and having a non-stick, thermoplastic outer sleeve comprising the following steps: continuously extruding a hollow sleeve of non-stick, thermoplastic material; sizing said continuously extruded sleeve to a predetermined outside dimension; cooling said sleeve to a solidified set condition; and introducing a hot melt adhesive material into said hollow sleeve by dispensing such material at a point downstream from the initial extrusion of said sleeve, at which point the sleeve has been cooled to a substantially solidified set condition.
Claim 3
Dependent Claim
13 words
A method according to claim 1 wherein said non-stick, thermoplastic material is polyethylene.
Claim 4
Independent Claim
143 words
A method for continuously forming a hot melt adhesive cartridge of accurate outside dimension and having a non-stick, thermoplastic outer sleeve comprising the following steps: continuously extruding a hollow sleeve of non-stick, thermoplastic material; sizing said continuously extruded sleeve to a predetermined outside dimension; transporting a hot melt adhesive material within and along the length of said sized sleeve to a point downstream from the initial extrusion of said sleeve; cooling said sleeve to a solidified set condition; and introducing said transported hot melt adhesive into said sleeve by dispensing such adhesive at said point downstream from said initial extrusion of said sleeve, at which point the sleeve has been cooled to a substantially solidified set condition to thereby form a continuous hot melt adhesive cartridge having an outer non-stick, thermoplastic sleeve of accurate outside dimension and an inner hot melt adhesive core.
Claim 5
Independent Claim
143 words
A method for continuously forming a hot melt adhesive cartridge of accurate outside dimension and having a non-stick, thermoplastic outer sleeve comprising the following steps: continuously extruding a hollow sleeve of non-stick, thermoplastic material; sizing said continuously extruded sleeve to a predetermined outside dimension; transporting a hot melt adhesive material within and along the length of said sized sleeve to a point downstream from the initial extrusion of said sleeve; cooling said sleeve to a solidified set condition; and introducing said transported hot melt adhesive into said sleeve by dispensing such adhesive at said point downstream from said initial extrusion of said sleeve, at which point the sleeve has been cooled to a substantially solidified set condition to thereby form a continuous hot melt adhesive cartridge having an outer non-stick, thermoplastic sleeve of accurate outside dimension and an inner hot melt adhesive core.
Claim 6
Dependent Claim
17 words
A method according to claim 3 further including the step of cutting said cartridge into predetermined lengths.
Claim 7
Dependent Claim
46 words
A method according to claim 3 wherein said transporting step includes: inserting a dispensing tube into said sleeve to a predetermined position downstream from the initial extrusion thereof; said transported hot melt adhesive being introduced into said sleeve from the downstream end of said dispensing tube.
Claim 8
Dependent Claim
26 words
A method according to claim 3 further including the steps of cooling said continuous hot melt adhesive cartridge; and cutting the cooled cartridge into predetermined lengths.
Claim 9
Independent Claim
131 words
A method for continuously forming a hot melt adhesive cartridge having a non-stick, thermoplastic outer sleeve containing dissimilar separate hot melt materials, comprising the following steps: continuously extruding a sleeve of non-stick, thermoplastic material having first and second separated chambers; sizing said continuously extruded sleeve to a predetermined outside dimension; cooling said sleeve to a solidified set condition; introducing a first hot melt adhesive material into said first chamber at a point downstream from the initial extrusion of said sleeve, at which point the sleeve has been cooled to a substantially solidified set condition; and introducing a second hot melt adhesive material into said second chamber at a point downstream from the initial extrusion of said sleeve, at which point the sleeve has been cooled to a substantially solidified set condition.
Claim 10
Independent Claim
131 words
A method for continuously forming a hot melt adhesive cartridge having a non-stick, thermoplastic outer sleeve containing dissimilar separate hot melt materials, comprising the following steps: continuously extruding a sleeve of non-stick, thermoplastic material having first and second separated chambers; sizing said continuously extruded sleeve to a predetermined outside dimension; cooling said sleeve to a solidified set condition; introducing a first hot melt adhesive material into said first chamber at a point downstream from the initial extrusion of said sleeve, at which point the sleeve has been cooled to a substantially solidified set condition; and introducing a second hot melt adhesive material into said second chamber at a point downstream from the initial extrusion of said sleeve, at which point the sleeve has been cooled to a substantially solidified set condition.
References Cited (Backward Citations)
US3552259A
Cited
US3668288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |