Apparatus for covering mattresses
Abstract
Abstract AN APPARATUS FOR COVERING MATTRESSES WHEREIN ONE OF TWO SPACED-APART, MUTUALLY PARALLEL GENERALLY HORIZONTAL TRANSPORT GRATES IS VERTICALLY SHIFTABLE RELATIVE TO THE OTHER SO THAT THE ENTIRE MATTRESS STRUCTURE CAN BE COMPRESSED BETWEEN THE GRATES. THE GRATES ARE COMPOSED OF PLANAR ARRAYS OF TRANSVERSELY SPACED, MUTUALLY PARALLEL GRATE BARS AND MEANS IS PROVIDED TO VARY THE BAR SPACING OF EACH GRATE TO ACCOMMODATE MATTRESS STRUCTURES OF VARIOUS WIDTHS AND LATERALLY COMPRESS THE FILTER BODY. THE GRATES CO-OPERATE WITH ENDLESS CONVEYOR MEANS FOR SHIFTING THE MATTRESS BETWEEN THE GRATES IN A SPACED-APART CONDITION THEREOF WHEREBY THE GRATES CAN THEN BE TOTALLY CLOSED (BROUGHT TOWARD ONE ANOTHER) TO COMPACT THE MATTRESS.
Inventors
- 👤 Ernst Langenscheidt
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |