US3767512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heat sealing the overlapped ends of a thermoplastic band
Assignee: Ikegai Corp
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Filing: 1971-09-23
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Granted: 1973-10-23
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Expires: 1991-09-23
Abstract
Abstract A device for working a heat plate having plural blades disposed in parallel with one another thereon for use in an apparatus for welding a thermoplastic band through melting of the overlapped portions of said band by virtue of the pressing of said blades against it, wherein: a heat plate pivoted by a guide pin on a guide frame in slidable and rotatable fashion and having a stopper is provided in slidable fashion on a slide plate mounted on the guide frame slidably and engaged with an adjusting stopper provided on said guide frame; and a cam mechanism to rotate said heat plate so as to make its tip go down by virtue of the sliding movement of said slide plate after said adjusting stopper has been engaged with said guide pin to thereby stop the heat plate.
Inventors
- 👤 O Tsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:33
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/20; B29C66/21; B29C65/00; B29C65/02; B29C65/74; B29C65/743; B29C65/7437; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/82; B29C66/822; B29C66/8221; B29C66/83; B29C66/832; B29C66/8322; B29C66/8324; B65; B65B; B65B13/00; B65B13/18; B65B13/24; B65B13/32; B29C66/70; B29C66/71; B29K; B29K2023/00; B29K2023/10; B29K2023/12; B29L; B29L2031/00; B29L2031/727; B29L2031/7276; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057; Y10T156/12; Y10T156/1304
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
204 words
An apparatus for heat sealing the overlapping portions of a thermoplastic band, comprising: frame means including a guide portion; first slide means slidably mounted on said guide portion, and stop means coacting between said frame means and said first slide means when said first slide means is in an end position to limit the movement of said slide means; second slide means positioned adjacent said first slide means and movable relative thereto; heat sealing means fixedly mounted on said second slide means for movement therewith, said heat sealing means including a plurality of substantially parallel blades disposed for at least partially penetrating and melting the overlapping portions of said band for welding said overlapping portions together; operating means drivingly connected to said first slide means for causing slidable movement thereof toward and away from said end position; and means coacting with said second slide means for permitting both slidable and pivotal movement of said second slide means relative to said first slide means as said first slide means is moved toward said end position for causing said blades to be moved into a position directly adjacent said overlapping portions of said band and then moved into said overlapping portions for penetrating and melting same.
Claim 2
Independent Claim
204 words
An apparatus for heat sealing the overlapping portions of a thermoplastic band, comprising: frame means including a guide portion; first slide means slidably mounted on said guide portion, and stop means coacting between said frame means and said first slide means when said first slide means is in an end position to limit the movement of said slide means; second slide means positioned adjacent said first slide means and movable relative thereto; heat sealing means fixedly mounted on said second slide means for movement therewith, said heat sealing means including a plurality of substantially parallel blades disposed for at least partially penetrating and melting the overlapping portions of said band for welding said overlapping portions together; operating means drivingly connected to said first slide means for causing slidable movement thereof toward and away from said end position; and means coacting with said second slide means for permitting both slidable and pivotal movement of said second slide means relative to said first slide means as said first slide means is moved toward said end position for causing said blades to be moved into a position directly adjacent said overlapping portions of said band and then moved into said overlapping portions for penetrating and melting same.
Claim 3
Dependent Claim
93 words
An apparatus according to claim 1, wherein said means coacting with said second slide means includes mounting means connected between said frame means and said second slide means for permitting both linear slidable and pivotal movement of said second slide means relative to said frame means, said means coacting with said second slide means further including cam means coacting between said first and second slide means for causing pivotal movement of said second slide means relative to said frame means in response to relative slidable movement between said first and second slide means.
Claim 4
Dependent Claim
109 words
An apparatus according to claim 2, wherein said operating means linearly slidably moves said first slide means between said first-mentioned end position and a second end position, said second slide means being movable with said first slide means from said second end position to a third position disposed intermediate said end positions, and stop means coacting between said second slide means and said frame means for preventing movement of said second slide means beyond said third position toward said first-mentioned end position, said cam means causing pivotal movement of said second slide means as said first slide means is moved from said third position toward said first-mentioned end position.
Claim 5
Dependent Claim
75 words
An apparatus according to claim 3, wherein said mounting means includes pivot pin means coacting between said second slide means and said frame means for permitting relative pivotal movement therebetween, said pivot pin means and said second slide means having cooperating elongated guide means formed thereon for permitting said second slide means to be linearly displaced relative to said pivot means in a direction substantially perpendicular to the rotational axis defined by said pivot means.
Claim 6
Dependent Claim
67 words
An apparatus according to claim 3, wherein said cam means includes a cam plate formed on one of said first and second slide means and a cam roller disposed on the other of said first and second slide means, said cam roller being disposed for engagement with said cam plate only when said first slide means is moved beyond said third position toward said first-mentioned end position.
Claim 7
Dependent Claim
66 words
An apparatus according to claim 3, wherein said operating means includes lever means pivotally mounted on said frame means for swinging movement about a first pivot axis, said lever means being pivotally and drivingly connected to said first slide means at a location spaced from said pivot axis, and driving rotatable cam meams disposed in engagement with said lever means for controlling the swinging movement thereof.
Claim 8
Dependent Claim
66 words
An apparatus according to claim 1, wherein said first and second slide means are linearly movable in a direction substantially perpendicular to the elongated direction of said band, and said second slide means being pivotable about an axis which is substantially perpendicular to said direction of linear movement, said pivot axis also being substantially parallel to the elongated direction of the overlapping portions of said band.
Claim 9
Dependent Claim
33 words
An apparatus according to claim 7, wherein the parallel blades on said sealing means extend in a direction which is substantially parallel to the elongated direction of the overlapping portions of said band.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |