Adjustable width doorway safety gate apparatus

• US 4,831,777 A
• Filed: 02/22/1988
• Issued: 05/23/1989
• Est. Priority Date: 06/04/1986
• Status: Expired due to Fees

• Current Assignee: Nuline Industries
• Original Assignee: Nuline Industries
• Inventors: Johnson, Stanley A. Jr.
• Primary Examiner(s): KANNAN, PHILIP
• Application Number:
  US07/158,923
• Time in Patent Office: 456 Days
• Field of Search: 49/55, 49/57, 49/56, 49/505, 160/222-228, 160/215, 160/216
• 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

Adjustable width doorway safety gate apparatus comprising two gate segments, one segment of which is laterally slidable on the other or hinged gate half segment, and the gate half segments having tongues and grooves and held in lateral sliding position by means of double headed pins extending through slots in top and bottom bar sections and spring section latch means of stiffly flexible plastic material to lock the gates in adjusted width and the gate is mounted on hinges of downward pointing hinge pin fitting in hinge pin socket and the hinge pin sockets attached to a face plate assembled of two sections one having slits and the other section having offset fingers and the fingers fitting in the slits and side wings on face plate with adjusting screws in the side wings of the face plate to attach the face plate to a doorway pillar.

Claims

1. Adjustable Width doorway safety gate apparatus wherein the improvement comprises:

a--two gate half segments aligned and attached together for lateral sliding of one gate half segment on the other, and

b--said two gate half segments having aligned lateral slots in

c--top bar sections and bottom bar sections in each gate segment and

d--double headed cross pins extending through said lateral slots of aligned gate segments and

e--top bar sections, center bar sections and bottom bar sections of said two gate segments fitting together in matching tongues and grooves, for lateral sliding, and

f--rack gear teeth mounted for length and parallel to slot of top bar section, and

g--one gate half segment mounted on hinges comprised of downward projecting hinge pins mounted on outer vertical gate half segment and

h--said hinge pins mounting into hinge pin sockets and

i--said hinge pin sockets attached to a face plate mounted on a door frame pillar, and

j--a bottom foot on hinged gate half segment.

2. Adjustable width doorway safety gate apparatus wherein the improvement comprises:

a--two gate half segments, one segment mounted on hinges and one segment mounted for lateral sliding on said segment mounted on hinges and

b--matching lateral slots in said two gate segments of

c--top bar sections and bottom bar sections and

d--double headed cross pins extending through said lateral slots of aligned gate segments and

e--top bar sections, center bar sections and bottom bar sections of said two gate half segments fitting together in matching tongues and grooves, for lateral sliding, and

f--rack gear teeth mounted in top bar section of gate segment mounted on hinges and

g--gate latch lock means to engage said rack gear teeth mounted in top bar section of said gate half section mounted on hinges and

h--said gate latch lock means consisting of gear teeth section meshing with rack gear teeth of said gate segment mounted on hinges, and

i--said gear teeth section attached to spring means and said spring means

j--attached to inner end of lateral slot in top bar section of gate segment mounted for lateral sliding on gate half segment mounted on hinges and

k--release lever attached to said gate latch lock spring means

l--for release of meshing of gate latch lock gear teeth section with rack gear teeth to allow lateral inward movement of said sliding gate segment,

m--and said gear teeth section sliding freely over gear rack teeth when sliding gate half segment moves laterally outward.

3. Adjustable width doorway safety gate apparatus of claim 2, wherein the improvement comprises:

a--gate latch means to engage rack gear teeth of hinge mounted gate segment and

b--said means comprising a section of gear teeth to mesh with rack gear teeth and said section of gear teeth mounted on spring means and

c--a release lever attached to said spring means to disengage gear teeth section from said rack gear teeth to allow lateral inward movement of sliding gate segment, and

d--door pillar straddle (U) sections attached to outer vertical edge of said lateral sliding gate segment to hold gate in closed position, and

e--a bottom foot on hinged gate half segment.

4. Adjustable width doorway safety gate apparatus of claim 2 wherein the improvement comprises:

a--doorway pillar straddle (U) frame sections extending outwardly and attached to outer vertical frame section of said lateral sliding gate segment, and

b--gate hinge sockets attached to adjustable width face plate comprised of hinge pin sockets, and

c--a face plate section with slits and

d--a face plate section with offset fingers and

e--said offset fingers fitting in said slits of said face plate section and

f--side wings on said face plates and

g--adjusting screws mounted on said side wings.

5. Adjustable width doorway safety gate apparatus of claim 2 wherein the improvement comprises a gate latch lock means of stiffly flexible plastic material selected from the group consisting of nylon, polypropylene or polystyrene.

6. Adjustable width doorway safety gate apparatus of claim 2 comprised of two gate segments aligned and attached together for lateral sliding of one gate segment on the other wherein the improvement comprises:

a--door frame pillar straddle (U) frame sections extending outwardly and attached to outer vertical frame section of said lateral sliding gate segment, and

b--gate hinge sockets attached to adjustable width face plate comprised of hinge pin sockets and

c--a face plate section with slits and

d--a face plate section with offset fingers and

e--said offset fingers fitting in said slits of said face plate section and

f--side wings on said face plates and

g--adjusting screws mounted on said side wings.

7. Adjustable width doorway safety gate apparatus of claim 2 wherein the improvement comprises:

a--hinge pin mount sockets attached to a hinge pin socket mount plate, and

b--slits in said mount plate and

c--said mount plate attached to doorway pillar by means of

d--legs of (L) shape with offset finger section of said (L) shape legs fitting in said slits and

e--the leg of (L) shape to be in contact with said mount plate and

f--(L) shape sections attached to side of said doorway pillar by means of a threaded bolt threaded into threaded nut attached to said side wing section.

8. Adjustable width doorway safety gate apparatus of claim 2, wherein the improvement comprises:

a--rack gear teeth mounted in top bar section of gate segment mounted on hinges and

b--said rack gear teeth located next to and parallel with slot in said top bar section.