Door closer
Abstract
Abstract 879,278. Door closing appliances. YALE & TOWNE MANUFACTURING CO. Nov. 27, 1959 [Jan. 14, 1959], No. 40348/59. Class 65(1). In a door closer of the rack and piston type in which rotation of the main operating shaft 15 in either direction moves the piston in one direction, the arm 31 secured to the upper end of the shaft 15 is held on one side or the other of a vertical plane extending longitudinally through the door closer casing, so as to determine the hand of the closer, by a limiting abutment 20 on the casing. The abutment 20 also constitutes one of the mounting brackets of the closer. The arm 31 which carries a roller 35 engaging in a channel member 37 attached to the door is formed with an opening 32 which fits over the correspondingly shaped end 30 of the shaft 15 and is held in position by a flat spring 33. The arm may be moved from one side to the other of the abutment 20 before the closer is installed by first tilting it about the end of the shaft 15 against the action of the spring.
Inventors
- 👤 Mathias M Check
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |