US3800499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging machine
Assignee: Individual
•
Filing: 1972-10-10
•
Granted: 1974-04-02
•
Expires: 1992-10-10
Abstract
Abstract A packaging machine for use in hand wrapping of articles in a flexible, heat sealable sheet material. The packaging machine has at least four corner supports to provide balance to a fixed wrapping platform and a movable heat sealing tray in all positions of the heat sealing tray. A sheet material feed system extends to an operative supply position to allow dispensing of one of at least two different types of sheet material while positively preventing dispensing of other than that one sheet material.
Inventors
- 👤 I Feldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:35
CPC Classifications
B; B65; B65B; B65B67/00; B65B67/08; B65B67/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
In a packaging machine for use in hand wrapping articles in a flexible, heat sealable sheet material, said packaging machine comprising, a fixed wrapping platform, a heat sealable tray having a heated surface portion and mounted for movement between an operative position forward of the platform and an inoperative position under the platform, means for biasing said heat sealing tray to its operative position, wherein the improvement comprises, frame support means for supporting said fixed platform and heat sealing tray in both said operative and inoperative positions, said frame support means defining an outer perimeter dimensioned and positioned to encompass and balance said fixed platform and heat sealing tray when said heat sealing tray is in its forward position.
Claim 2
Dependent Claim
119 words
In a packaging machine for use in hand wrapping articles in a flexible, heat sealable sheet material, said packaging machine comprising, a fixed wrapping platform, a heat sealable tray having a heated surface portion and mounted for movement between an operative position forward of the platform and an inoperative position under the platform, means for biasing said heat sealing tray to its operative position, wherein the improvement comprises, frame support means for supporting said fixed platform and heat sealing tray in both said operative and inoperative positions, said frame support means defining an outer perimeter dimensioned and positioned to encompass and balance said fixed platform and heat sealing tray when said heat sealing tray is in its forward position.
Claim 3
Dependent Claim
57 words
The improvement in a packaging machine in accordance with claim 1 and further comprising, roll support means comprising at least two pair of parallel rollers each positioned to carry a feed roll of said sheet material, and selector means for permitting feed of sheet material from one roll while blocking feed of other rolls of sheet material.
Claim 4
Dependent Claim
26 words
The improvement in a packaging machine in accordance with claim 2 wherein said selector means comprises a flip bar pivotal to a first and second position.
Claim 5
Dependent Claim
63 words
The improvement in a packaging machine in accordance with claim 1 and further comprising, said frame support means comprising fixed supports positioned in part forward of said fixed wrapping platform for providing positive support for a forward portion of said heat sealing tray when said tray is in its operative position, said fixed wrapping platform and heat sealing tray being substantially horizontally positioned.
Claim 6
Dependent Claim
33 words
The improvement in a packaging machine in accordance with claim 4 and further comprising, said frame support means further comprising rail means for supporting and guiding said movement of said heat sealing tray.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |