Patent US3923576A successfully refreshed from Google Patents.
US3923576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weatherseal manufacture
Assignee: Schlegel Manufacturing Co
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Filing: 1974-02-27
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Granted: 1975-12-02
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Expires: 1994-02-27
Abstract
Abstract A weatherseal is made by extruding a resin base with a relatively thick, flat support portion and a relatively thin, portion U-shaped in cross section and joined to opposite side edges of the support portion to arch over the center of the support portion. While the resin material is still plastic, a pressure differential expands the U-shaped portion to reduce the thickness of the walls of the U-shaped portion, and then each side of the U-shaped portion is cut at a predetermined distance from the support to leave a pair of thin, spaced-apart resilient fins. Then fibrous pile material is secured to the support between the fins to form a double-fin, pile weatherseal.
Inventors
- 👤 Earl V Lind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:24
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; B; B29; B29C; B29C48/00; B29C48/001; B29C48/0018; B29C48/0022; B29C48/03; B29C48/07; B29C48/12; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
92 words
A WEATHERSEAL MAKING METHOD COMPRISING: A. EXTRUDING A RESIN BASE WITH A RELATIVELY THICK AND GENERALLY FLAT SUPPORT PORTION AND A RELATIVELY THIN PORTION USHAPED IN CROSS SECTION AND JOINED TO OPPOSITE SIDE EDGE REGIONS OF SAID SUPPORT PORTION AND ARCHING OVER ONE FACE SURFACE OF SAID SUPPORT PORTION; B. WHILE SAID RESIN MATERIAL IS STILL PLASTIC, PRODUCING A SUBSTANTIALLY LOWER PRESSURE OUTSIDE SAID U-SHAPED PORTION THAN INSIDE SAID U-SHAPED PORTION TO EXPAND SAID USHAPED PORTION AWAY FROM SAID SUPPORT PORTION AND REDUCE THE THICKNESS OF THE WALL OF SAID U-SHAPED PORTION;
Claim 2
Dependent Claim
92 words
A WEATHERSEAL MAKING METHOD COMPRISING: A. EXTRUDING A RESIN BASE WITH A RELATIVELY THICK AND GENERALLY FLAT SUPPORT PORTION AND A RELATIVELY THIN PORTION USHAPED IN CROSS SECTION AND JOINED TO OPPOSITE SIDE EDGE REGIONS OF SAID SUPPORT PORTION AND ARCHING OVER ONE FACE SURFACE OF SAID SUPPORT PORTION; B. WHILE SAID RESIN MATERIAL IS STILL PLASTIC, PRODUCING A SUBSTANTIALLY LOWER PRESSURE OUTSIDE SAID U-SHAPED PORTION THAN INSIDE SAID U-SHAPED PORTION TO EXPAND SAID USHAPED PORTION AWAY FROM SAID SUPPORT PORTION AND REDUCE THE THICKNESS OF THE WALL OF SAID U-SHAPED PORTION;
Claim 3
Dependent Claim
17 words
The method of claim 1 including substantially filling the space between said fins with said pile material.
Claim 4
Dependent Claim
15 words
The method of claim 1 including flocking said pile material in place between said fins.
Claim 5
Dependent Claim
31 words
The method of claim 1 including preparing a separate strip of said pile material and securing said pile strip to said one face surface of said support portion between said fins.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |