USD271615S - Damper unit - Google Patents
Damper unit Download PDFInfo
- Publication number
- USD271615S USD271615S US06/251,207 US25120781F USD271615S US D271615 S USD271615 S US D271615S US 25120781 F US25120781 F US 25120781F US D271615 S USD271615 S US D271615S
- Authority
- US
- United States
- Prior art keywords
- damper unit
- damper
- unit
- view
- ornamental design
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Description
FIG. 1 is a perspective view of the damper unit showing our new design.
FIG. 2 is a top plan view thereof.
FIG. 3 is a bottom plan view thereof.
FIG. 4 is an end elevational view thereof, the opposite end being a mirror image of the end shown.
FIG. 5 is a left side elevational view thereof.
FIG. 6 is a right side elevational view thereof.
Claims (1)
- The ornamental design of a damper unit, as shown and described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/251,207 USD271615S (en) | 1981-04-06 | 1981-04-06 | Damper unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/251,207 USD271615S (en) | 1981-04-06 | 1981-04-06 | Damper unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USD271615S true USD271615S (en) | 1983-11-29 |
Family
ID=64103695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/251,207 Expired - Lifetime USD271615S (en) | 1981-04-06 | 1981-04-06 | Damper unit |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | USD271615S (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1337904A (en) | 1920-04-20 | greville | ||
| US1659875A (en) | 1926-09-22 | 1928-02-21 | Lionel L Jacobs | Automatic damper |
| US2959933A (en) | 1956-12-03 | 1960-11-15 | Carrier Corp | Air conditioning apparatus |
| US2975975A (en) | 1958-07-21 | 1961-03-21 | Erwin L Weber | Automatic ventilators |
| US3273798A (en) | 1964-05-04 | 1966-09-20 | Gen Motors Corp | Exhaust manifold heat valve |
| US3366333A (en) | 1965-06-01 | 1968-01-30 | Charles G. Diehl | Thermostatic heat conserving damper |
| US3753548A (en) | 1970-09-29 | 1973-08-21 | Steinmueller Gmbh L & C | Pivot valve and sealing sleeve construction |
| US3804366A (en) | 1972-06-05 | 1974-04-16 | Arco Ind Corp | Composite flow control device |
| US4165833A (en) | 1978-03-30 | 1979-08-28 | Westinghouse Electric Corp. | Automatic flue damper |
| US4290552A (en) | 1980-08-14 | 1981-09-22 | Prikkel Iii John | Damper control mechanism |
| US4361272A (en) | 1981-04-06 | 1982-11-30 | Energy Vent, Inc. | Thermal damper for rectangular flue |
| USD268281S (en) | 1979-09-26 | 1983-03-15 | Prikkel Iii John | Damper |
-
1981
- 1981-04-06 US US06/251,207 patent/USD271615S/en not_active Expired - Lifetime
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1337904A (en) | 1920-04-20 | greville | ||
| US1659875A (en) | 1926-09-22 | 1928-02-21 | Lionel L Jacobs | Automatic damper |
| US2959933A (en) | 1956-12-03 | 1960-11-15 | Carrier Corp | Air conditioning apparatus |
| US2975975A (en) | 1958-07-21 | 1961-03-21 | Erwin L Weber | Automatic ventilators |
| US3273798A (en) | 1964-05-04 | 1966-09-20 | Gen Motors Corp | Exhaust manifold heat valve |
| US3366333A (en) | 1965-06-01 | 1968-01-30 | Charles G. Diehl | Thermostatic heat conserving damper |
| US3753548A (en) | 1970-09-29 | 1973-08-21 | Steinmueller Gmbh L & C | Pivot valve and sealing sleeve construction |
| US3804366A (en) | 1972-06-05 | 1974-04-16 | Arco Ind Corp | Composite flow control device |
| US4165833A (en) | 1978-03-30 | 1979-08-28 | Westinghouse Electric Corp. | Automatic flue damper |
| USD268281S (en) | 1979-09-26 | 1983-03-15 | Prikkel Iii John | Damper |
| US4290552A (en) | 1980-08-14 | 1981-09-22 | Prikkel Iii John | Damper control mechanism |
| US4361272A (en) | 1981-04-06 | 1982-11-30 | Energy Vent, Inc. | Thermal damper for rectangular flue |
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