Patent US3579802A successfully refreshed from Google Patents.
US3579802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for insulating boiler or like housing wall
Assignee: Individual
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Filing: 1968-12-02
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Granted: 1971-05-25
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Expires: 1988-12-02
Abstract
Abstract Method and means for securing thin-webbed metalwork on boiler or like housing wall, as for retaining insulation and/or finishing sheeting thereon. Studs may have inner ends welded to housing wall by use of a stud welder. Areas of metalwork strip impacted against reduced ends of studs to punch through web, and further impaction forms heads to retain metalwork against peripheral shoulders defined by reduced ends.
Inventors
- 👤 Frank R Gajovski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:33
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0832; E04F13/0833; E04F13/0835; E04F13/0837; F; F16; F16B; F16B5/00; F16B5/04; F23; F23M; F23M5/00; F23M5/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49835; Y10T29/49837; Y10T29/49879
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
170 words
A method for securing thin-webbed metalwork to an existing metal wall surface comprising: the steps of affixing to said wall surface a plurality of studs, each having a reduced free end portion defining a peripheral shoulder to be in spaced relation to the wall surface when the other end of the respective stud is secured thereto, and the outer end of said end portion being recessed to define peripheral cutting edge; supporting the metalwork to engage said thin web portion thereof against said cutting edge of each stud; and impacting said engaged web portion against the cutting edge of each stud; first to pierce and project the reduced portion thereof through the corresponding web portion, and then to peen the respective projected free end portion against the web portion, thereby to form heads on the respective studs for securing the web portion to the peripheral shoulder of the studs; and securing a facing of sheet material to said metalwork to form an enclosure between said wall and said facing sheet.
Claim 2
Independent Claim
170 words
A method for securing thin-webbed metalwork to an existing metal wall surface comprising: the steps of affixing to said wall surface a plurality of studs, each having a reduced free end portion defining a peripheral shoulder to be in spaced relation to the wall surface when the other end of the respective stud is secured thereto, and the outer end of said end portion being recessed to define peripheral cutting edge; supporting the metalwork to engage said thin web portion thereof against said cutting edge of each stud; and impacting said engaged web portion against the cutting edge of each stud; first to pierce and project the reduced portion thereof through the corresponding web portion, and then to peen the respective projected free end portion against the web portion, thereby to form heads on the respective studs for securing the web portion to the peripheral shoulder of the studs; and securing a facing of sheet material to said metalwork to form an enclosure between said wall and said facing sheet.
Claim 3
Dependent Claim
38 words
A method as in claim 1, eaCh said stud being affixed to said wall surface by applying a welding charge therethrough while said other end of the stud is held against said wall, to weld the stud thereto.
Claim 4
Dependent Claim
22 words
A method as in claim 2, including retaining a filler of insulating material between the secured said web portions and said wall.
Claim 5
Dependent Claim
22 words
A method as in claim 1, including retaining a filler of insulating material between the secured said web portion and said wall.
Claim 6
Dependent Claim
22 words
A method as in claim 1, including retaining a filler of insulating material between the secured said web portion and said wall.
References Cited (Backward Citations)
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US2663270A
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US2737267A
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US3022687A
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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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |