US3649060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined astragal and flush bolt structure
Assignee: Steelcraft Manufacturing Co
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Filing: 1969-12-19
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Granted: 1972-03-14
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Expires: 1989-12-19
Abstract
Abstract A combined astragal and flush bolt arrangement for a pair of doors in which upper and lower flush bolts are arranged to lock the inactive door in a closed position within its door frame, the active door being latched by a conventional lock to the inactive door for normal service. The astragal is generally T-shaped in cross section, comprising a longitudinal mounting rail secured to the free edge of the inactive door and having a right angular head rail which provides a stop against which the active door seats in its closed position. The longitudinal mounting rail includes an internal slideway, the flush bolts being slidably confined within upper and lower portions of the slideway and having outer end portions arranged to project outwardly beyond the rail into the keepers of the header and sill of the door frame.
Inventors
- 👤 Robert O Ruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:12
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/02; E05C1/04; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/36; E06B3/362; E06B3/365; E05B; E05B17/00; E05B17/007; E05C7/00; E05C7/04; E05C7/045; Y; Y10; Y10S; Y10S292/00; Y10S292/21; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0846; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1024
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
284 words
A combined flush bolt and astragal device for attachment to the swinging edge portion of a door, said flush bolt being adapted to cooperate with a keeper mounted in a door frame for latching and unlatching the door to the door frame as desIred, comprising, an astragal having a head rail and a mounting rail, said astragal being structured to allow attachment to the swinging edge of a door by fasteners without deforming that swinging edge except as may be required for said fasteners, and said mounting rail having structure that defines a slideway extending longitudinally thereof which is positioned between the non-deformed swinging edge of the door and the interior face of said mounting rail so as to enclose said slideway after said astragal has been attached to the swinging edge of the door, a flush bolt slidably confined within an end portion of said slideway and having an end portion arranged to protrude beyond the end of the mounting rail, said flush bolt likewise being enclosed between the swinging edge of the door and the interior face of said mounting rail after said astragal has been attached to the swinging edge of the door, manual means for shifting said flush bolt, when the astragal is attached to the door, between a lock position for latching the door to a door frame in a closed position and an unlock position for allowing the door to be swung to an open position, and structure defining an elongated slot in said mounting rail, said manual means being accessible through said elongated slot, and said elongated slot only being of sufficient length to allow longitudinal movement of said flush bolt between the lock and unlock positions.
Claim 2
Dependent Claim
284 words
A combined flush bolt and astragal device for attachment to the swinging edge portion of a door, said flush bolt being adapted to cooperate with a keeper mounted in a door frame for latching and unlatching the door to the door frame as desIred, comprising, an astragal having a head rail and a mounting rail, said astragal being structured to allow attachment to the swinging edge of a door by fasteners without deforming that swinging edge except as may be required for said fasteners, and said mounting rail having structure that defines a slideway extending longitudinally thereof which is positioned between the non-deformed swinging edge of the door and the interior face of said mounting rail so as to enclose said slideway after said astragal has been attached to the swinging edge of the door, a flush bolt slidably confined within an end portion of said slideway and having an end portion arranged to protrude beyond the end of the mounting rail, said flush bolt likewise being enclosed between the swinging edge of the door and the interior face of said mounting rail after said astragal has been attached to the swinging edge of the door, manual means for shifting said flush bolt, when the astragal is attached to the door, between a lock position for latching the door to a door frame in a closed position and an unlock position for allowing the door to be swung to an open position, and structure defining an elongated slot in said mounting rail, said manual means being accessible through said elongated slot, and said elongated slot only being of sufficient length to allow longitudinal movement of said flush bolt between the lock and unlock positions.
Claim 3
Dependent Claim
83 words
A combined astragal and flush bolt device as set forth in claim 1 in which said mounting rail includes a pair of spaced parallel limbs projecting generally at right angles from the interior face of said mounting rail, the inner ends of said limbs being seated against the swinging edge of the door when said astragal is attached to the door, and the interior face of said mounting rail and the opposed surfaces of said limbs which face one another delineating said slideway.
Claim 4
Dependent Claim
75 words
A combined astragal and flush bolt device as set forth in claim 2 in which the ends of said limbs each include an inturned lip with said lips projecting toward one another, the interior face of said mountings rail, the opposes surfaces of said limbs and the internal surfaces of said inturned lips providing a self-contained slideway between said mounting rail and the swinging edge of the door in which said flush bolt is confined.
Claim 5
Dependent Claim
53 words
A combined astragal and flush bolt device as set forth in claim 1 in which said manual means includes a purchase opening formed in said flush bolt in registry with said elongated slot, said purchase opening being accessible for finger engagement through said elongated slot to allow longitudinal movement of said flush bolt.
Claim 6
Dependent Claim
89 words
A combined astragal and flush bolt device as set forth in claim 1 in which said fasteners for attaching said astragal to the swinging edge of the door comprise screws passing through said mounting rail and into the swinging edge, and including means for limiting the longitudinal motion of said flush bolt comprising an elongated slot formed in said flush bolt, one of said screws passing through said elongated slot and cooperating with the ends of said slot to limit the extent of longitudinal motion of said flush bolt.
Claim 7
Dependent Claim
38 words
A combined astragal and flush bolt device as set forth in claim 1 including friction means associated with said flush bolt to pivotally hold said flush bolt in its retracted or extended position with respect to said slideway.
Claim 8
Dependent Claim
61 words
A combined astragal and flush bolt device as set forth in claim 6 in which said friction means includes a pair of opposed tines fixed to said flush bolt which are sufficiently thin to provide a spring action, said flush bolt being installed within said slideway with said tines sprung inwardly toward one another against the opposed surfaces of said slideway.
Claim 9
Dependent Claim
136 words
A combined astragal and flush bolt device as set forth in claim 1 which is particularly adapted for use with an active door and an inactive door where both are hingedly mounted in a door Frame, said astragal and flush bolt device being attachable to the inactive door, wherein said head rail and mounting rail are of T-shaped configuration so that a part of said head rail serves as a stop for the active door, and wherein at least said astragal is fabricated of metal, and including a thermal barrier strip fixed to that edge of said mounting rail opposite said head rail, said thermal barrier strip serving to interrupt heat transfer through said astragal from that environment in which said thermal barrier strip is located to that environment in which said head rail is located.
Claim 10
Dependent Claim
95 words
A combined astragal and flush bolt device as set forth in claim 8 in which said mounting rail includes a compound flange projecting from the interior face of said mounting rail, said compound flange being located at the edge of said mounting rail opposite said head rail, said compound flange having a flange which projects toward the swinging edge of the inactive door when said astragal is attached to the inactive door, and said thermal barrier strip being clamped between said flange and the swinging edge when said astragal is attached to the inactive door.
Claim 11
Dependent Claim
66 words
A combined astragal and flush bolt device as set forth in claim 8 including a weather strip mounted to said astragal, said weather strip having a flexible limb adapted to seat between the overhanging portion of said head rail and the active door when the active door is in a closed position so as to provide a weather seal between said astragal and the active door.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |