US3785556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging apparatus, method and product
Assignee: Individual
•
Filing: 1971-08-05
•
Granted: 1974-01-15
•
Expires: 1991-08-05
Abstract
Abstract Apparatus and method of packaging liquids wherein an elongated plastic envelope, sealed at one end, is filled with liquid under predetermined static pressure and a selected liquid-filled portion thereof is then heat-sealed and severed from the remainder of the envelope; the liquid being isolated from the heat-sealing and severing zone during such operations to prevent heating the liquid to boiling or gasifying temperatures.
Inventors
- 👤 L Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:55
CPC Classifications
A; A01; A01M; A01M1/00; A01M1/20; A01M1/2022; A01M1/2027; A01M1/2044; B; B65; B65B; B65B9/00; B65B9/02; B65B9/023
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
105 words
A method for controllably disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said method comprising the steps of forming a chamber having a flexible wall part and a wall portion of thermo-plastic material, supplying into the chamber under atmospheric pressure conditions, a quantity of a liquid substance permeant to the thermo-plastic material at a given rate per unit area, and hermetically sealing the chamber under gas-free conditions whereby the liquid substance thereafter travels through the thermo-plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 2
Independent Claim
105 words
A method for controllably disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said method comprising the steps of forming a chamber having a flexible wall part and a wall portion of thermo-plastic material, supplying into the chamber under atmospheric pressure conditions, a quantity of a liquid substance permeant to the thermo-plastic material at a given rate per unit area, and hermetically sealing the chamber under gas-free conditions whereby the liquid substance thereafter travels through the thermo-plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 3
Independent Claim
125 words
A method of controllably disseminating into the atmosphere a substance which is selected from a group consisting essentially of odorants, deodorants, repellents and insecticides and which is normally liquid under atmosphereic temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said method comprising the steps of forming a chamber including a flexible wall part and a wall portion of plastic material, supplying into the chamber a quantity of a liquid substance selected from the group consisting essentially of odorants, deodorants, repellents and insecticides permeant to the plastic material at a given rate per unit area, and hermetically sealing the chamber, whereby the liquid substance thereafter travels through the plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 4
Independent Claim
125 words
A method of controllably disseminating into the atmosphere a substance which is selected from a group consisting essentially of odorants, deodorants, repellents and insecticides and which is normally liquid under atmosphereic temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said method comprising the steps of forming a chamber including a flexible wall part and a wall portion of plastic material, supplying into the chamber a quantity of a liquid substance selected from the group consisting essentially of odorants, deodorants, repellents and insecticides permeant to the plastic material at a given rate per unit area, and hermetically sealing the chamber, whereby the liquid substance thereafter travels through the plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 5
Independent Claim
114 words
A method for disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said method comprising the steps of forming a chamber including a flexible wall part and a wall portion of plastic material having, on the interior surface thereof, a plurality of recesses to provide a plurality of capillary channels, supplying into the chamber a quantity of a liquid substance permeant to the plastic material at a given rate per unit area, and hermetically sealing the chamber, whereby the liquid substance thereafter travels through the plastic material and, at the outer surfacE thereof, evaporates into the atmosphere.
Claim 6
Independent Claim
114 words
A method for disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said method comprising the steps of forming a chamber including a flexible wall part and a wall portion of plastic material having, on the interior surface thereof, a plurality of recesses to provide a plurality of capillary channels, supplying into the chamber a quantity of a liquid substance permeant to the plastic material at a given rate per unit area, and hermetically sealing the chamber, whereby the liquid substance thereafter travels through the plastic material and, at the outer surfacE thereof, evaporates into the atmosphere.
Claim 7
Dependent Claim
95 words
A package for controllably disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said package comprising a hermetically sealed chamber having a flexible wall part and a wall portion of thermo-plastic material and including therein under gas-free conditions a body of liquid under atmospheric pressure, said liquid being permeant to said thermo-plastic material at a predetermined rate per unit area, whereby said liquid travels through said thermo-plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 8
Dependent Claim
95 words
A package for controllably disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said package comprising a hermetically sealed chamber having a flexible wall part and a wall portion of thermo-plastic material and including therein under gas-free conditions a body of liquid under atmospheric pressure, said liquid being permeant to said thermo-plastic material at a predetermined rate per unit area, whereby said liquid travels through said thermo-plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 9
Dependent Claim
30 words
A package in accordance with claim 4 wherein said wall portion is polyethylene and said liquid is selected from the group of odorants, deodorants, repellents and insecticides permeant to polyethylene.
Claim 10
Dependent Claim
50 words
A package in accordance with claim 4 wherein said flexible wall part collapses under atmospheric pressure in response to the dissemination of liquid from the interior of said chamber, whereby the volume of said chamber reduces to zero before the pressure within the interior thereof drops to below atmospheric pressure.
Claim 11
Dependent Claim
28 words
A package in accordance with claim 4 wherein said wall portion has on the interior surface thereof a plurality of recesses to provide a plurality of capillary channels.
Claim 12
Dependent Claim
50 words
A package in accordance with claim 4 wherein said chamber comprises superimposed layers of said thermo-plastic material having margins hermetically sealed together to provide said hermetically sealed chamber and wherein said body of liquid fills said chamber with none of said liquid being in a vapor phase at atmospheric temperatures.
Claim 13
Dependent Claim
36 words
A package in accordance with claim 4 wherein said chamber comprises superimposed layers of said thermo-plastic material having margins heat sealed together to provide said hermetically sealed chamber which is filled with said body of liquid.
Claim 14
Dependent Claim
106 words
A package for controllably disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said package comprising a hermetically sealed chamber including a flexible wall part and a wall portion of plastic material, and a body of liquid encapsulated in said chamber under atmospheric pressure, said liquid being selected from the group consisting essentially of odorants, deodorants, repellents and insecticides permeant to said plastic material at a given rate per unit area, whereby said liquid travels through said plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 15
Dependent Claim
106 words
A package for controllably disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said package comprising a hermetically sealed chamber including a flexible wall part and a wall portion of plastic material, and a body of liquid encapsulated in said chamber under atmospheric pressure, said liquid being selected from the group consisting essentially of odorants, deodorants, repellents and insecticides permeant to said plastic material at a given rate per unit area, whereby said liquid travels through said plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 16
Dependent Claim
19 words
A package in accordance with claim 10 wherein said plastic material is thermo-plastic material and said chamber is gas-free.
Claim 17
Dependent Claim
28 words
A package in accordance with claim 10 wherein said wall portion has on the interior surface thereof a plurality of recesses to provide a plurality of capillary channels.
Claim 18
Dependent Claim
49 words
A package in accordance with claim 10 wherein said chamber comprises superimposed layers of thermo-plastic material having margins hermetically sealed together to provide said hermetically sealed chamber and wherein said body of liquid fills said chamber with none of said liquid being in a vapor phase at atmospheric temperatures.
Claim 19
Dependent Claim
40 words
A package in accordance with claim 10 wherein said chamber comprises superimposed layers of thermo-plastic material having margins heat sealed together to provide said hermetically sealed chamber which is filled with said body of liquid and free of all gas.
Claim 20
Dependent Claim
110 words
A package for disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said package comprising a hermetically sealed chamber including a flexible wall part and a wall portion of plastic material having, on the interior surface thereof, a plurality of recesses to provide a plurality of capillary channels, and a body of liquid encapsulated in said chamber under atmospheric pressure, said liquid being permeant to said plastic material at a given rate per unit area, whereby said liquid travels through said plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 21
Dependent Claim
110 words
A package for disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said package comprising a hermetically sealed chamber including a flexible wall part and a wall portion of plastic material having, on the interior surface thereof, a plurality of recesses to provide a plurality of capillary channels, and a body of liquid encapsulated in said chamber under atmospheric pressure, said liquid being permeant to said plastic material at a given rate per unit area, whereby said liquid travels through said plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 22
Dependent Claim
33 words
A package in accordance with claim 15 wherein the wall portion is of polypropylene and said liquid is a member selected from the group of odorants, deodorants, repellents and insecticides permeant to polypropylene.
Claim 23
Dependent Claim
103 words
A package for controllably disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said package comprising a hermetically sealed chamber comprising superimposed layers of flexible thermo-plastic material having margins heat sealed together to provide said hermetically sealed chamber, said chamber being free of all air and including a substance completely in the liquid phase and being permeant to said plastic material at a given rate per unit area, whereby said substance travels through said plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 24
Dependent Claim
103 words
A package for controllably disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions and which is vaporizable under atmospheric temperature and pressure conditions, said package comprising a hermetically sealed chamber comprising superimposed layers of flexible thermo-plastic material having margins heat sealed together to provide said hermetically sealed chamber, said chamber being free of all air and including a substance completely in the liquid phase and being permeant to said plastic material at a given rate per unit area, whereby said substance travels through said plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 25
Dependent Claim
28 words
A package in accordance with claim 17 wherein said liquid is selected from the group consisting essentially of odorants, deodorants, repellents and insecticides permeant to said thermo-plastic material.
Claim 26
Dependent Claim
116 words
A package for disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions, and which is vaporizable under atmospheric temperature and pressure conditions, said package comprising a hermetically sealed chamber comprising superimposed layers of flexible thermo-plastic material having margins hermetically sealed together to provide said hermetically sealed chamber, and a body of liquid encapsulated in said chamber under atmospheric pressure and filling said chamber with none of said liquid being in a vapor phase at atmospheric temperature, said liquid being permeant to said plastic material at a given rate per unit area, whereby said liquid travels through said plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 27
Dependent Claim
116 words
A package for disseminating into the atmosphere a substance which is normally liquid under atmospheric temperature and pressure conditions, and which is vaporizable under atmospheric temperature and pressure conditions, said package comprising a hermetically sealed chamber comprising superimposed layers of flexible thermo-plastic material having margins hermetically sealed together to provide said hermetically sealed chamber, and a body of liquid encapsulated in said chamber under atmospheric pressure and filling said chamber with none of said liquid being in a vapor phase at atmospheric temperature, said liquid being permeant to said plastic material at a given rate per unit area, whereby said liquid travels through said plastic material and, at the outer surface thereof, evaporates into the atmosphere.
Claim 28
Dependent Claim
32 words
A package in accordance with claim 19 wherein said plastic material is polyethylene and said liquid is a member selected from the group of odorants, deodorants, repellents and insecticides permeant to polyethylene.
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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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |