Patent US3909879A successfully refreshed from Google Patents.
US3909879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinges for abutting door sashes
Assignee: PRAMETA PRAZISIONSMETTALL und
•
Filing: 1974-03-15
•
Granted: 1975-10-07
•
Expires: 1994-03-15
Abstract
Abstract This disclosure relates to a novel hinge including a pair of pivotally united hinge elements, one of the hinge elements including a T-shaped extension whose cross bar is received in a generally U-shaped groove of another of the hinge elements, and means for locking the T-shaped extension to another hinge element. Preferably, the locking means is a screw threaded into a bore of the cross bar which when rotated causes the cross bar to bind and thus lock within the U-shaped groove. In another embodiment of the invention a tapered bore formed in a slit end of the cross bar receives a tapered screw such that rotation of the latter spreads the slit end of the cross bar to again cause clamping within the U-shaped groove. In both hinge structures, another screw disposed in the cross bar normal to the locking screw provides relative adjustment between the hinge elements.
Inventors
- 👤 Hellmuth Grunert
- 👤 Theodor Vitt
- 👤 Johannes Gortz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:38
CPC Classifications
E; E05; E05D; E05D7/00; E05D7/04; E05D7/0407; E05Y; E05Y2600/00; E05Y2600/60; E05Y2600/622; E05Y2800/00; E05Y2800/26; E05Y2800/292; E05Y2900/00; E05Y2900/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
129 words
A hinge comprising a pair of hinge elements, an extension having opposite ends, means pivotally mounting one of said ends to one of said hinge elements, said pivotally mounting means defines a pivot axis, the other of said ends being of a T-shaped configuration defined by a neck and a crossbar, a slot formed in a wall of the other of said hinge elements, said neck being received in said slot, means for locking said extension to said other hinge element, means for adjusting the position of said neck within said slot in a direction generally normal to said pivot axis, and said adjusting means being a screw threaded in said crossbar with the axis thereof being disposed generally normal to the pivot axis of said pivotally mounting means.
Claim 2
Dependent Claim
129 words
A hinge comprising a pair of hinge elements, an extension having opposite ends, means pivotally mounting one of said ends to one of said hinge elements, said pivotally mounting means defines a pivot axis, the other of said ends being of a T-shaped configuration defined by a neck and a crossbar, a slot formed in a wall of the other of said hinge elements, said neck being received in said slot, means for locking said extension to said other hinge element, means for adjusting the position of said neck within said slot in a direction generally normal to said pivot axis, and said adjusting means being a screw threaded in said crossbar with the axis thereof being disposed generally normal to the pivot axis of said pivotally mounting means.
Claim 3
Dependent Claim
36 words
The hinge as defined in claim 1 wherein the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said screw passes through said crossbar and bottoms against said second wall.
Claim 4
Dependent Claim
48 words
The hinge as defined in claim 2 wherein said locking means in a screw, the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said last-mentioned screw bottoms against said first-mentioned wall and has an axis generally normal to said pivot axis.
Claim 5
Dependent Claim
48 words
The hiNge as defined in claim 1 wherein said locking means is a screw, the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said last-mentioned screw bottoms against said first-mentioned wall and has an axis generally normal to said pivot axis.
Claim 6
Dependent Claim
71 words
The hinge as defined in claim 1 wherein said crossbar includes opposite ends, said locking means includes a tapered threaded bore in an end of said crossbar receiving a screw and a slit opening into said tapered threaded bore whereby said last-mentioned crossbar end may be spread, and a generally U-shaped groove receiving said last-mentioned crossbar end whereby upon the spreading of the latter the same binds within said U-shaped groove.
Claim 7
Dependent Claim
19 words
The hinge as defined in claim 5 wherein said screws include axes in generally parallel relationship to each other.
Claim 8
Dependent Claim
35 words
The hinge as defined in claim 6 wherein the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said screws have axes disposed generally normal to said second wall.
Claim 9
Dependent Claim
16 words
The hinge as defined in claim 7 wherein said adjusting screw bottoms against said second wall.
Claim 10
Dependent Claim
35 words
The hinge as defined in claim 5 wherein the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said screws have axes disposed generally normal to said second wall.
Claim 11
Dependent Claim
16 words
The hinge as defined in claim 9 wherein said adjusting screw bottoms against said second wall.
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |