CHICAGO/BARREL BOLT DOOR STOP

BUTEE DE PORTE A VERROU ROND/CHICAGO

English Abstract

A Chicago barrel bolt doorstop assembly having a doorstop with a
first shaft extending between a distal end and a butt end.
Protruding from the butt end is a post assembly having a post. The
post assembly further has internal threads. A fastener has a
second shaft with threads, a head, and a third end. The threads
extend from the third end towards the head. To mount onto a door,
the first end of the post assembly is presented into a hole from a
first side of the door, and the third end of the fastener is presented
into the hole from a second side of the door, whereby the hole
extends between the first and second sides of the door. The first
end receives the third end and the fastener tightens into the post
assembly .

French Abstract

Un ensemble de butée de porte à verrou rond Chicago comportant une butée de porte avec un premier arbre sétendant entre une extrémité distale et une extrémité daboutement. Un ensemble poteau comportant un poteau fait sailli de lextrémité. Lensemble poteau comporte également des filets internes. Un dispositif de fixation comporte un second arbre avec des filets, une tête et une troisième extrémité. Les filets sétendent de la troisième extrémité vers la tête. Pour se fixer à une porte, la première extrémité de lensemble poteau est présentée dans un trou depuis un premier côté de la porte, et la troisième extrémité du dispositif de fixation est présentée dans le trou à partir dun second côté de la porte, le trou sétendant entre les premier et second côtés de la porte. La première extrémité reçoit la troisième extrémité et le dispositif de fixation se resserre dans lensemble poteau.

Claims

CLAIMS
What is claimed is:
1. A barrel bolt doorstop assembly for installation in a hole spanning a
width of a door, said
assembly comprising:
A) a doorstop comprising a first shaft extending between a distal end and a
butt
end, protruding from said butt end is a post assembly for mounting into said
hole from a first
side of said door, said post assembly comprising a post extending between
first and second
ends and internal threads on said post, a length of said post being smaller
than said width of
said door;
B) a fastener comprising a second shaft having threads, a head and a third
end,
said fastener further comprising a shoulder section protruding from said head
that extends to
said second shaft, said shoulder section being larger in diameter than said
second shaft, said
threads extending from said third end towards said head, said third end of
said fastener being
mountable into said hole from a second side of said door such that said
shoulder section fits in
said hole, said first end receives said third end and said fastener tightens
into said post
assembly; and
C) a bumper assembly extending from said distal end, said bumper assembly
comprising a bumper head, said bumper head having a convex removable cap that
fits thereon.
2. A barrel bolt doorstop assembly in combination with a door, consisting
essentially of:
A) a doorstop comprising a first shaft extending between a distal end and a
butt
end, protruding from said butt end is a post assembly comprising a post
extending between first
and second ends, said post assembly further comprising internal threads;
B) a fastener comprising a second shaft having threads, a head and a third
end,
said fastener further comprises a shoulder section protruding from said head
that extends to
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said second shaft, whereby said shoulder section is larger in diameter than
said second shaft,
said threads extend from said third end towards said head;
C) a bumper assembly comprising a bumper head, said bumper head has a
convex
removable cap that fits thereon; and
D) a door comprising first and second sides, at least one doorknob, and a
hole, said
hole extends between said first and second sides, said first end of said post
assembly is
mounted into said hole from said first side of said door, whereby a width of
said door is larger
than a length of said post, and said third end of said fastener is mounted
into said hole from said
second side of said door, whereby said shoulder section fits in said hole, and
said first end
receives said third end and said fastener tightens into said post assembly.

Description

I
CA 2884986 2017-04-26
CA 2,884,986
Blakes Ref. 12137/00001
1 I. TITLE: CHICAGO/BARREL BOLT DOOR STOP
2
3 II. BACKGROUND OF THE INVENTION
4
1. Field of the Invention.
6
7 The present invention relates to doorstops, and more
8 particularly, to improved doorstops to prevent a doorknob from
9 causing damage when opening a door to an adjacent wall.
11 2. [Intentionally Deleted]
12
13
14
16
17
18 3. Description of the Related Art.
19
Prior art doorstops are typically mounted onto a bottom corner
21 of a door. .Baseboards are a decorative finish attached to walls
22 along a perimeter of a room where the walls and floor meet. The
23 doorstop makes contact with the baseboard prior to the doorknob
24 making contact with the wall, consequently preventing the
doorknob from impacting the wall and causing damage. However,
1

CA 02884986 2015-03-11
1 prior art doorstops often compromise the bottom corner of the door,
2 typically damaging it, and ultimately fall off the door completely.
3
4 Prior art doorstops provide for a number of more or less
complicated features that fail to solve the problem in an efficient
6 and economical way. None of those prior art doorstops suggest the
7 novel features of the present invention.
8
9 III. SUMMARY OF THE INVENTION
11 The present invention is a Chicago barrel bolt doorstop
12 assembly. More specifically, the present invention is a Chicago
13 barrel bolt doorstop assembly, comprising a doorstop having a first
14 shaft extending between a distal end and a butt end. Protruding
from the butt end is a post assembly comprising a post extending
16 between first and second ends. The post assembly further
17 comprises internal threads. A fastener comprises a second shaft
18 having threads, a head, and a third end. The threads extend from
19 the third end towards the head. The Chicago barrel bolt doorstop
assembly may further comprise a bumper assembly, whereby the
21 bumper assembly comprises a bumper head and a cap snugly fits
22 onto the bumper head.
23
24 To mount the present invention, the first end of the post
assembly is presented into a hole from a first side of a door, and the
26 third end of the fastener is presented into the hole from a second
2

CA 02884986 2015-03-11
1 side of the door. The hole extends between the first and second
2 sides of the door. The first end receives the third end and the
3 fastener tightens into the post assembly. The door comprises at
4 least one doorknob.
6 It is
therefore one of the main objects of the present invention
7 to provide a Chicago barrel bolt doorstop assembly that mounts
8 securely onto door assemblies.
9
It is another object of this invention to provide a Chicago
11 barrel bolt doorstop assembly without compromising the door
12 assembly.
13
14 It is
another object of this invention to provide a Chicago
barrel bolt doorstop assembly, which is of a durable and reliable
16 construction.
17
18 It is
yet another object of this invention to provide such an
19 assembly that is inexpensive to manufacture and maintain while
retaining its effectiveness.
21
22 Further
objects of the invention will be brought out in the
23
following part of the specification, wherein detailed description is for
24 the purpose of fully disclosing the invention without placing
limitations thereon.
26
3

CA 02884986 2015-03-11
1 IV. BRIEF DESCRIPTION OF THE DRAWINGS
2
3 With
the above and other related objects in view, the invention
4
consists in the details of construction and combination of parts as
will be more fully understood from the following description, when
6 read in conjunction with the accompanying drawings in which:
7
8 Figure
1 represents a side view of a prior art doorstop
9 assembly.
11 Figure
2 is a side view of the present invention being mounted
12 onto a door assembly.
13
14 V.
DETAILED DESCRIPTION OF THE PREFERRED
EMBODIMENT
16
17
Referring now to the drawings, the present invention is a
18 Chicago barrel bolt doorstop assembly and is generally referred to
19 with numeral 100. It can be observed that it basically includes
doorstop 120, post assembly 140, and fastener 150.
21
22
Doorstops extend a first distance from a door side/surface
23 whereto they are mounted. Doorknobs extend a second distance
24 from the same door side/surface whereto they are mounted. A
doorstop is generally mounted to the door side/surface, and when
26 open,
makes contact with the wall. Walls generally have
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CA 02884986 2015-03-11
1 baseboards, which are a decorative finish attached to the walls
2 along a lower perimeter of the room walls. The first distance is
3 greater than the second distance, so the doorstop contacts the
4 baseboards, thus preventing the doorknob from damaging the wall.
6 Seen in figure 1 is prior art doorstop assembly 10. Prior art
7 doorstop assembly 10 teaches a conventional method to attach,
8 whereby threaded post 40 fastens onto a bottom corner of door
9 202, seen in figure 2. Conventional threaded post 40 has the same
configuration and shape of a wood screw. Prior art doorstop
11 assembly 10 has distal end 24 and butt end 26. Threaded post 40
12 is attached or machined to butt end 26. Prior art doorstop
13 assembly 10 is then attached to door 202, by simultaneously
14 pushing and turning prior art doorstop assembly 10 in a clockwise
direction into the bottom corner of door 202 until threaded post 40
16 grabs material of the bottom corner of door 202 and butt end 26 is
17 firmly seated against a surface of the bottom corner of door 202.
18 Distal end 24, and more specifically bumper head 32, is designed to
19 make contact with the baseboard. As also seen in figure 1, prior art
doorstop assembly 10 comprises door stop 20 having shaft 22 that
21 extends between distal end 24 and butt end 26. Protruding from
22 distal end 24 is bumper assembly 30 comprising bumper head 32.
23 Protruding from butt end 26 is threaded post 40. Threaded post 40
24 comprises shaft 44 that extends between end 42 and end 48. Shaft
44 comprises threads 46.
26
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CA 02884986 2016-04-26
1 The problem with
attaching/fastening prior art doorstop
2 assembly 10 to the
bottom corner of door 202, is the inevitability
3 that of connection
weakening and loosing its foothold. In regards to
4 its strength, prior
art doorstop assembly 10 has minimal resistance
to both lateral and vertical forces. If any of such forces is applied
6 either purposefully
or accidently, prior art doorstop assembly 10 is
7 detached leaving its
connection to the bottom corner of door 202
8 destroyed. A user
must then attempt to reattach prior art doorstop
9 assembly 10 to
another portion of door 202, as close as possible to
the previous hole, potentially leaving an unsightly mark and
11 spoiling the finish of door 202.
12
13 Present invention 100
is an improvement to prior art doorstop
14 assembly 10
traditionally used to prevent a doorknob from causing
damage to an adjacent wall, upon opening a door.
16
17 As seen in figure 2,
present invention 100 introduces a
18 modification to the method for attaching/fastening a doorstop to
19 door 202. Present invention 100 decreases the probability of
damage to both door 202 and present invention 100. Present
21 invention 100
comprises distal end 124, butt end 126, post 144,
22 and fastener 150. Post 144 is designed with internal threads 146
23 as a female
configuration, while fastener 150 comprises shaft 152
24 having threads 156 as a male counter part. Fastener 150 further
comprises shoulder section 151, head 158 and end 154. As also seen
26 in figure 2, present
invention 100 comprises door stop 120 having
27 shaft 122 that
extends between distal end 124 and butt end 126.
6
22909229.1

CA 02884986 2016-04-26
1 Protruding from distal end 124 is bumper assembly 130 comprising
2 bumperhead 132. Cap 134 snugly fits onto bumper head 132.
3 Protruding from butt end 126 is post assembly 140. Post assembly 140
4 comprises post 144 that extends between end 142 and end 148.
6 As seen in figure 2, door assembly 200 comprises door 202
7 having hole 204, typically placed at a bottom corner, and
8 doorknobs 206.
9
For installation, hole 204 is drilled spanning an entire width of
11 door 202. The width of door 202 is slightly larger than post 144.
12 Present invention 100 is then mounted to the door 202
13 side/surface that, when open, makes contact with a wall by
14 inserting post 144 through door 202 at drilled hole 204, while
fastener 150 is inserted through an opposite side of door 202 at
16 drilled hole 204. This configuration permits to join the two parts,
17 internal threads 146 as the female configuration of post assembly
18 140, and fastener 150, from opposite sides of door 202; not only
19 strengthening the attachment but also its support to door 202 to
increase its mounting efficiency. This arrangement increases the
21 strength and resistance of present invention 100 to forces in all
22 planes. Thus, eliminating the possibility of damage to both door
23 202 and present invention 100, while fulfilling its common use to
24 prevent damage to the adjacent wall.
7
22909229.1

CA 02884986 2015-03-11
1 The foregoing description conveys the best understanding of
2 the objectives and advantages of the present invention. Different
3 embodiments may be made of the inventive concept of this
4 invention. It is to be understood that all matter disclosed herein is
to be interpreted merely as illustrative, and not in a limiting sense.
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Representative Drawing