US3591870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary disposable receiver for liquid and solid wastes
Assignee: Gordon A Friesen International Inc
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Filing: 1968-11-14
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Granted: 1971-07-13
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Expires: 1988-11-14
Abstract
Abstract A sanitary disposable receiver for liquid and solid wastes, particularly for human wastes, is disclosed. The receiver is in the form of a sheet capable of being formed into a bag or pouch, which comprises a substrate of unbleached, nonporous, highly hydrated paper, preferably kraft paper, coated on at least one side with a hydrophobic surfactant. A tissue paper outer layer is glued, at its periphery, to the substrate such that an air space is left between two layers. The material of which the pouch is made can be made in sheets, rolls, or ready-formed.
Inventors
- 👤 Gordon A Friesen
- 👤 Reavis Sproull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:31
CPC Classifications
A; A47; A47K; A47K11/00; A47K11/02; A61; A61G; A61G9/00; A61G9/003; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
82 words
A sanitary flushable receiver for liquid or solid materials, or both, particularly for containing human excrement and other undesireable hospital domestic wastes of human origin, comprising a substantially baglike carrier, said baglike carrier comprising a laminate of: a. a substrate of unbleached, nonporous, highly hydrated paper; b. said paper being coated on at least one side with a hydrophobic surfactant; c. an outer layer of tissue paper; d. said tissue paper being secured to said hydrated paper at the marginal regions thereof.
Claim 2
Dependent Claim
82 words
A sanitary flushable receiver for liquid or solid materials, or both, particularly for containing human excrement and other undesireable hospital domestic wastes of human origin, comprising a substantially baglike carrier, said baglike carrier comprising a laminate of: a. a substrate of unbleached, nonporous, highly hydrated paper; b. said paper being coated on at least one side with a hydrophobic surfactant; c. an outer layer of tissue paper; d. said tissue paper being secured to said hydrated paper at the marginal regions thereof.
Claim 3
Dependent Claim
16 words
A sanitary flushable receiver as defined in claim 1, wherein said hydrated paper is kraft paper.
Claim 4
Dependent Claim
41 words
A sanitary flushable receiver as defined in claim 2 wherein said kraft paper has a thickness less than about 0.0006 inch and said surfactant is present in a thickness of from about 0.01 to about 0.5 pound per 1,000 square feet.
Claim 5
Dependent Claim
22 words
A sanitary flushable receiver as defined in claim 3, wherein said kraft paper is from about 0.0003 to about 0.0006 inch thick.
Claim 6
Dependent Claim
18 words
A sanitary flushable receiver as defined in claim 4, wherein said kraft paper is about 0.0005 inch thick.
Claim 7
Dependent Claim
25 words
A sanitary flushable receiver as defined in claim 3, wherein said surfactant is selected from the group consisting of polyhydrocarbons, polyhalohydrocarbons, and complex metallo hydrocarbons.
Claim 8
Dependent Claim
17 words
A sanitary flushable receiver as defined in claim 6, wherein said surfactant is a fluorinated hydrocarbon polymer.
Claim 9
Dependent Claim
16 words
A sanitary flushable receiver as defined in claim 6, wherein said surfactant is vinylidine chloride polymer.
Claim 10
Dependent Claim
17 words
A sanitary flushable receiver as defined in claim 6, wherein said surfactant is stearic acid, chromium complex.
Claim 11
Dependent Claim
21 words
A sanitary flushable receiver as defined in claim 3, wherein said kraft paper is coated on both sides with said surfactant.
Claim 12
Dependent Claim
26 words
A sanitary flushable receiver as defined in claim 3, wherein said surfactant is present in a thickness of about 1 percent by weight of the substrate.
Claim 13
Dependent Claim
22 words
A sanitary flushable receiver as defined in claim 3, wherein said tissue is of about 5 to about 15 pounds basis weight
Claim 14
Dependent Claim
23 words
A sanitary flushable receiver as defined in claim 3, wherein said tissue paper is secured to said kraft paper with a water-soluble glue.
Claim 15
Dependent Claim
18 words
A sanitary flushable receiver as defined in claim 3, wherein said tissue paper is present in two layers.
Claim 16
Dependent Claim
44 words
A sanitary flushable receiver as defined in claim 1, further comprising at least one strip of pressure sensitive adhesive transfer tape adhesively affixed to said outer layer of tissue paper for removably affixing said receiver to the surface of a container for the same.
Claim 17
Dependent Claim
15 words
A sanitary flushable receiver as defined in claim 15, wherein said container is a bedpan.
Claim 18
Dependent Claim
53 words
A disposable and flushable laminated sheet material comprising: a. a substrate of unbleached, nonporous, highly hydrated paper; b. said paper being coated on at least one side with a hydrophobic surfactant; c. an outer layer of tissue paper; d. said tissue paper being secured to said hydrated paper at the marginal regions thereof.
Claim 19
Dependent Claim
53 words
A disposable and flushable laminated sheet material comprising: a. a substrate of unbleached, nonporous, highly hydrated paper; b. said paper being coated on at least one side with a hydrophobic surfactant; c. an outer layer of tissue paper; d. said tissue paper being secured to said hydrated paper at the marginal regions thereof.
Claim 20
Dependent Claim
19 words
A disposable and flushable laminated sheet material as defined in claim 17, wherein said hydrated paper is kraft paper.
Claim 21
Dependent Claim
44 words
A disposable and flushable laminated sheet material as defined in claim 18, wherein said kraft paper has a thickness less than about 0.0006 inch and said surfactant is present in a thickness of from about 0.01 to about 0.05 pound per 1,000 square feet.
Claim 22
Dependent Claim
22 words
A disposable and flushable laminated sheet material as defined in claim 19, wherein said kraft paper is from about 0.0006 inch thick.
Claim 23
Dependent Claim
28 words
A disposable and flushable laminated sheet material as defined in claim 19, wherein said surfactant is selected from the group consisting of polyhydrocarbons, polyhalohydrocarbons, and complex metallo hydrocarbons.
Claim 24
Dependent Claim
20 words
A disposable and flushable laminated sheet material as defined in claim 19, wherein said surfactant is a fluorinated hydrocarbon polymer.
Claim 25
Dependent Claim
20 words
A disposable and flushable laminated sheet material as defined in claim 19, wherein said surfactant is a vinylidine chloride polymer.
Claim 26
Dependent Claim
20 words
A disposable and flushable laminated sheet material as defined in claim 19, wherein said surfactant is stearic acid, chromium complex.
Claim 27
Dependent Claim
29 words
A disposable and flushable laminated sheet material as defined in claim 19 wherein said surfactant is present in a thickness of about 1 percent by weight of the substrate.
Claim 28
Dependent Claim
25 words
A disposable and flushable laminated sheet material as defined in claim 19, wherein said tissue is of about 5 to about 15 pounds basis weight.
Claim 29
Dependent Claim
27 words
A disposable and flushable laminated sheet material as defined in claim 19, wherein said tissue paper is secured to said kraft paper with a water soluble glue.
Claim 30
Dependent Claim
48 words
A disposable and flushable laminated sheet material as defined in claim 19, further comprising at least one strip of pressure sensitive adhesive transfer tape adhesively affixed to said outer layer of tissue paper for removably affixing said sheet material to the surface of a container for the same.
Claim 31
Dependent Claim
18 words
A disposable and flushable laminated sheet material as defined in claim 28, wherein said container is a bedpan.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |