Doorway safety gate apparatus

• US 4,702,036 A
• Filed: 06/04/1986
• Issued: 10/27/1987
• Est. Priority Date: 06/04/1986
• Status: Expired due to Fees

• Current Assignee: Nuline Industries
• Original Assignee: Stanley A. Johnson
• Inventors: Johnson, Stanley A.
• Primary Examiner(s): Kannan, Philip C.
• Application Number:
  US06/870,550
• Time in Patent Office: 510 Days
• Field of Search: 49/55, 49/58, 49/57, 49/399, 49/394, 256/73, 256/26
• US Class Current: 49/55
• CPC Class Codes: E06B 2009/002 Safety guards or gates
• CPC Class Codes: E06B 9/02 Shutters, movable grilles, or other safety closing devices, e.g. against burglary louvre windows or grilles E06B7/08; lamellar blinds E06B9/26
• CPC Class Codes: E06B 9/04 of wing type, e.g. revolving or sliding trap doors; louvre doors or windows E06B7/08

Abstract

Apparatus is disclosed to provide a safety gate comprised of two segments, which on being closed, the segments overlap each other and can be locked in this closed position. Each gate segment is mounted on hinges in turn fastened to doorway frame pillars. The overlapping gate segments allow for convenience of fitting various widths of door frames.

Claims

1. Doorway safety gate apparatus wherein the improvement consists of:

(a) two gate segments and gate vertical frame mounts

(b) said segments to overlap when closed; and

(c) hinges mounted on outer vertical edge of each gate segment,

(d) said hinges consisting of

(e) hinge pins pointed downward and mounted on edge of each gate segment, and said hinge pins of each gate segment mounted in

(f) hinge pin sockets mounted on inside face of door frame pillars, and

(g) keyways in said hinge pin sockets and

(h) hinge pin key segments on bottom end of said hinge pins and

(i) gate locking means comprising a rotatable locking pin in a

(j) slot of center bar of each gate segment, and

(k) said locking pin comprised of

(l) pin heads attached to each end of locking pin center section and

(m) one of said pin heads having a wide and narrow dimension and a

(n) pin head having a base dimension greater than said slots of center bars of gate segments and

(o) located on opposite end of said locking pin center section from pin head having a wide and narrow dimension.

2. Doorway safety gate apparatus wherein the improvement comprises:

(a) two gate halves or segments

(b) hinged on gate vertical frame mounts and

(c) said halves to overlap on being closed, and

(d) hinges mounted on outer vertical edge of each gate half,

(e) said hinges consisting of

(f) hinge pins pointed downward, and mounted on edge of each gate half, and

(g) hinge pin sockets on gate vertical frame mounts mounted on inside face of door frame pillars, and

(h) keyways in said hinge pin sockets, and

(i) hinge pin key segments on bottom end of said hinge pins, and

(j) a gate locking means consisting of a

(k) gate locking pin center section, and

(l) gate locking pin heads on each end of said gate locking pin center section, and

(m) a gate locking pin cross pin, and

(n) stop washer bearing locked between said cross pin and gate locking pin head, and

(o) said cross pin located on said gate locking pin center section to hold said stop washer bearing against center line page bar of gate segment, and

(p) gate locking pin head opposite said stop washer bearing against opposite side in slot of center bar of gate, and

(q) said gate locking pin having a wide and narrow dimension extending through matching slots in gate center bar segments, said overlapping gate halves.

3. Doorway safety gate apparatus of claim, 2 wherein gate segments are mounted on hinges on gate vertical frame mounts and said gate vertical frame mounts are attached to doorway frame pillar, by means of fastening screws.

4. Doorway safety gate of claim 2, wherein the improvement consists of:

(a) two gate segments mounted on hinges on vertical frame mounts

(b) gate locking pin mounted in slots in gate center bar segments of two overlapping gate segments

(c) pin heads attached to each end of locking pin center section

(d) one of said pin heads having a wide and narrow dimension and

(e) pin head located on opposite end of said locking pin center section, from pin head having a wide and narrow dimension, having a base dimension greater than slot narrrow dimension and

(f) stop washer bearing on opposite side of said slot, in contact with pin head having a greater dimension than slot narrow dimension and

(g) cross pin mounted perpendicular to long axis of said locking pin center section and

(h) in contact with said stop washer bearing on the surface opposite said slot and

(i) gate locking pin extending through said slots in center bar gate segments is rotatable on its long axis.

5. Doorway safety gate apparatus of claim 2 wherein further improvement consists of gate sag bumpers attached to bottom outer edges of each gate segment, said gate sag bumpers to contact gate threshold when gate is in closed position.

6. Doorway safety gate apparatus of claim 2 wherein gate segments are mounted on hinges on gate vertical mounts and said gate vertical frame mounts are attached to adjustable horizontal threshold legs of gate vertical frame mounts and vertical mount upper anchors are fitted in slot for vertical mount upper anchors in said gate vertical frame mounts, and said vertical mount upper anchors are adjusted to doorway frame pillar by means of adjustable screw slots.

7. Doorway safety gate apparatus of claim 6, the improvement consisting of adjustable threshold legs attached to vertical frame mounts of gate segments and said threshold legs to overlap and held rigid by means of a screw attaching the overlapping threshold segments to each other.