US3845544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a light room element
Assignee: Individual
•
Filing: 1972-09-20
•
Granted: 1974-11-05
•
Expires: 1992-09-20
Abstract
Abstract A method of producing a light bathroom element by using steel cassettes with a U-formed section. The cassettes are formed out of steel sheets which are first covered on one side with a plastics material and then bent into a desired U-form such that the plastics layer also appears on the seam surfaces between the cassettes. The adjacent cassettes are joined together by heating the seam portions so as to momentarily molten the plastics layers thereon and to wedge them together in a water-tight manner.
Inventors
- 👤 M Nurminen
- 👤 P Hammar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:42
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/54; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1051; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885; Y10T29/49906; Y10T29/4998
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
A method of producing a light room element, e.g., a bathroom element, including equipment and rising mains, out of steel cassettes with a U-formed section, characterized in coating steel sheets constituting the material of the steel cassettes on one side with a plastics layer; bending the steel sheets into a desired U-form that the plastics layer also appears on the seam surfaces between the cassettes; and joining the cassettes by heating the seam portions of the cassettes by means of the induction method such that the plastics layers thereon are momentarily molten and wedged together in a water-tight manner.
Claim 2
Independent Claim
99 words
A method of producing a light room element, e.g., a bathroom element, including equipment and rising mains, out of steel cassettes with a U-formed section, characterized in coating steel sheets constituting the material of the steel cassettes on one side with a plastics layer; bending the steel sheets into a desired U-form that the plastics layer also appears on the seam surfaces between the cassettes; and joining the cassettes by heating the seam portions of the cassettes by means of the induction method such that the plastics layers thereon are momentarily molten and wedged together in a water-tight manner.
Claim 3
Independent Claim
101 words
A method of producing a light room element, e.g., a bathroom element, including equipment and rising mains, out of steel cassettes with a U-formed section, characterized in coating steel sheets constituting the material of the steel cassettes on one side with a plastics layer; bending the steel sheets into a desired U-form such that the plastics layer also appears on the seam surfaCes between the cassettes; and joining the cassettes by heating the seam portions of the cassettes by means of the high frequency method such that the plastics layers thereon are momentarily molten and wedged together in a watertight manner.
Claim 4
Independent Claim
101 words
A method of producing a light room element, e.g., a bathroom element, including equipment and rising mains, out of steel cassettes with a U-formed section, characterized in coating steel sheets constituting the material of the steel cassettes on one side with a plastics layer; bending the steel sheets into a desired U-form such that the plastics layer also appears on the seam surfaCes between the cassettes; and joining the cassettes by heating the seam portions of the cassettes by means of the high frequency method such that the plastics layers thereon are momentarily molten and wedged together in a watertight manner.
Claim 5
Independent Claim
100 words
A method of producing a light room element, e.g., a bathroom element, including equipment and rising mains, out of steel cassettes with a U-formed section, characterized in coating steel sheets constituting the material of the steel cassettes on one side with a plastics layer; bending the steel sheets into a desired U-form such that the plastics layer also appears on the seam surfaces between the cassettes; and joining the cassettes by heating the seam portions of the cassettes by means of electric heating resistors such that the plastics layers thereon are momentarily molten and wedged together in a water-tight manner.
Claim 6
Independent Claim
100 words
A method of producing a light room element, e.g., a bathroom element, including equipment and rising mains, out of steel cassettes with a U-formed section, characterized in coating steel sheets constituting the material of the steel cassettes on one side with a plastics layer; bending the steel sheets into a desired U-form such that the plastics layer also appears on the seam surfaces between the cassettes; and joining the cassettes by heating the seam portions of the cassettes by means of electric heating resistors such that the plastics layers thereon are momentarily molten and wedged together in a water-tight manner.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |