US3627162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated cup
Assignee: Union Manufacturing Co
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Filing: 1966-01-28
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Granted: 1971-12-14
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Expires: 1986-01-28
Abstract
Abstract 1. An insulated cup, comprising a hard outer cup shell, a hard inner cup shell received within the outer shell, both cup shells having peripherally contacting concentric cylindrical walls near the open end of the cup, the inner shell including a radially outward flange near the open end and the periphery of the open end of the outer shell being seated at said flange, the walls of said shells being otherwise of differing convergent tapers and spaced axially and radially, the convergent taper of the inner shell being greater than that of the outer shell and having a closed bottom axially spaced from the closed bottom of the outer shell, and foamed hardened bonding material throughout the space between said walls and in intimate and substantially complete contact with said walls and permanently bonded thereto.
Inventors
- 👤 Fred P Dossin
- 👤 Fred L Nestrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:29
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/26; A; A47; A47J; A47J41/00; A47J41/0055; A47J41/0072; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/1228; B29C44/1242
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
An insulated cup, comprising a hard outer cup shell, hard inner cup shell received within the outer shell, both cup shells having peripherally contacting concentric cylindrical walls near the open end of the cup, the inner shell including a radially outward flange near the open end and the periphery of the open end of the outer shell being seated at said flange, the walls of said shells being otherwise of differing convergent tapers and spaced axially and radially, the convergent taper of the inner shell being greater than that of the outer shell and having a closed bottom axially spaced from the closed bottom of the outer shell, and foamed hardened bonding material throughout the space between said walls and in intimate and substantially complete contact with said walls and permanently bonded thereto.
Claim 2
Dependent Claim
133 words
An insulated cup, comprising a hard outer cup shell, hard inner cup shell received within the outer shell, both cup shells having peripherally contacting concentric cylindrical walls near the open end of the cup, the inner shell including a radially outward flange near the open end and the periphery of the open end of the outer shell being seated at said flange, the walls of said shells being otherwise of differing convergent tapers and spaced axially and radially, the convergent taper of the inner shell being greater than that of the outer shell and having a closed bottom axially spaced from the closed bottom of the outer shell, and foamed hardened bonding material throughout the space between said walls and in intimate and substantially complete contact with said walls and permanently bonded thereto.
Claim 3
Dependent Claim
21 words
A cup according to claim 1, wherein the outer shell is of steel, and the inner shell is of plastic material.
Claim 4
Dependent Claim
49 words
A cup according to claim 1, wherein the inner shell is of plastic material and the outer shell is of steel, the flange of the inner shell having an axially directed peripheral lip defining a peripheral axially open groove in which the edge of the steel shell is received.
Claim 5
Independent Claim
157 words
The method of making an insulated cup from an outer cup shell and an inner cup shell which have contacting cylindrical walls at the open end and convergent remaining wall surfaces which when fitted define an annular space between the remaining parts of said walls, the open end of the inner shell having a radially outward flange, which comprises selecting a female die conforming to the outer surface of the outer shell, axially inserting the outer shell in said die for intimate support therein, selecting a male die conforming to the inner surface of the inner shell, axially inserting the male die in the inner shell for intimate support thereof, applying a limited quantity of foamable plastic to the bottom wall portion of one of the shells, closing and clamping the dies with said shells in fitted relation at said cylindrical walls and against said flange, and holding the clamped relation until the foamed plastic has hardened.
Claim 6
Independent Claim
157 words
The method of making an insulated cup from an outer cup shell and an inner cup shell which have contacting cylindrical walls at the open end and convergent remaining wall surfaces which when fitted define an annular space between the remaining parts of said walls, the open end of the inner shell having a radially outward flange, which comprises selecting a female die conforming to the outer surface of the outer shell, axially inserting the outer shell in said die for intimate support therein, selecting a male die conforming to the inner surface of the inner shell, axially inserting the male die in the inner shell for intimate support thereof, applying a limited quantity of foamable plastic to the bottom wall portion of one of the shells, closing and clamping the dies with said shells in fitted relation at said cylindrical walls and against said flange, and holding the clamped relation until the foamed plastic has hardened.
Claim 7
Dependent Claim
39 words
The method of claim 4, wherein one of the shells is of steel and its wall facing the other shell is first coated with a rubber-base adhesive, the adhesive being allowed to dry before application of the foamable plastic.
Claim 8
Dependent Claim
42 words
A cup according to claim 2, in which the inner surface of the cylindrical wall of the inner shell is integrally formed with inwardly projecting lug formations for removably engaging the cup to the neck of a vacuum bottle or the like.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |