EP0819619B1

EP0819619B1 - Aerosol container discharging apparatus with stake member

Info

Publication number: EP0819619B1
Application number: EP19970304569
Authority: EP
Inventors: Thomas J. Smrt
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-19
Filing date: 1997-06-26
Publication date: 2001-03-21
Anticipated expiration: 2017-06-26
Also published as: DE69704311T2; NO973121D0; AU2473997A; NO973121L; DE69704311D1; AU736240C; AU736240B2; EP0819619A1

Description

This invention generally relates to devices for discharging the contents of aerosol containers and, more particularly, to an aerosol container discharging device having flag-staking capability.
The use of aerosol containers for dispensing marking compositions is well-known, e.g., for striping construction sites, and for marking the location of utility lines. In addition to using aerosol compositions to mark an area, small flags are often used to mark particular locations within the area. For example, in a construction site, an aerosol marking composition may be used to mark the precise location of existing utility lines, with small flags being used to specifically identify the type of utility line being marked, e.g., water, gas, or electric. These flags typically include a metal wire stem or pole and small flag attached thereto that may contain words and/or a depiction of that which is being marked.
A number of devices have been developed which allow a person making marks using aerosol compositions to remain relatively upright, while at the same time positioning the container relatively close to the surface to be marked. These devices further allow the discharge of the aerosol container to be controlled by the user. Examples of these types of devices are provided by U.S. Patents 5,368,202 and 5,518,148, which correspond to the preamble of appended claim 1.
While the foregoing devices solve many of the problems associated with marking surfaces using aerosol containers, they do not solve all of the problems associated with marking areas using aerosol containers in conjunction with flags. In particular, when marking areas with flags, it is necessary for the person placing the flags to carry a device for creating a hole in the ground into which a flag is placed. This is due to the construction of such flags, which typically include a stem or pole that readily bends under pressure. This problem is of particular concern when the ground is frozen or dry. Thus, in order to make both types of marks at a location, a user must simultaneously transport the flags, a spade or shovel to make a hole for the flags, and an aerosol container. Transporting all of this equipment around a construction site can be quite unwieldy and problematic.
Accordingly, a need exists for an apparatus which overcomes the foregoing problems associated with demarcating an area of interest.
FR-A-2 608 467 discloses a device for facilitating the spraying of a liquid at an elevated position. An elongate rod has a carrier for an aerosol container at its upper end, and there are means for controlling operation of the actuator of the aerosol container. There may be a holder near the aerosol carrier for removably holding accessories for use in conjunction with spraying, e.g. a scraper for use in conjunction with a spray of cleaning liquid for cleaning windows.
The present invention provides an apparatus for use in marking the surface of the ground, comprising means for discharging the contents of an aerosol container to mark the surface, the aerosol container having an actuator which can be moved between discharging and non-discharging positions, the discharging means comprising:
a rod member having a front and a rear end;
means for holding the aerosol container disposed adjacent the front end of the rod member;
actuating means which effects movement of the aerosol container actuator between discharging and non-discharging positions;
means for controlling movement of the actuating means; and said apparatus being characterised by
means comprising a stake member for creating an opening in the surface of the ground.
Suitably the stake member is a nail.
An embodiment will now be described by way of example with reference to the accompanying drawings in which:
FIGURE 1 is a perspective view of an aerosol container discharging apparatus with flag staking capability constructed according to one preferred embodiment of the present invention;
FIG. 2 is a side view of the aerosol container discharging apparatus of FIG. 1;
FIG. 3 is a partial side view of the aerosol container discharging apparatus of FIG. 1 showing how the apparatus can be used to create an opening in a substrate, in this case a hole in the ground;
FIG. 4 is an enlarged partially exploded view of the aerosol container discharging apparatus of FIG. 1 showing a means for mounting the stake member mounting bracket to one end of the rod member;
FIG. 5 is an enlarged partially exploded view of the stake member mounting bracket and stake member of FIG. 4; and
FIG. 6 is a side longitudinal sectional view of the aerosol container discharging apparatus of FIG. 1
While the invention will be described and disclosed in connection with certain preferred embodiments and procedures, it is not intended that the invention be limited to those specific embodiments.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

In accordance with one preferred embodiment of the present invention, there is provided an aerosol container apparatus with the dual capability of creating an opening in a substrate, e.g. making a hole in the ground to facilitate the placement of a marker flag in the ground, while also allowing a user to control the discharge of an aerosol container held at a remote distance from the user.
Turning initially to FIGS. 1-2, and 6 there is illustrated a preferred embodiment of the apparatus 10 of the present invention which can be used with conventional aerosol containers 12 (shown in broken lines). The aerosol container 12 includes an actuator 25 that moves between discharging and non-discharging positions thereby controlling the discharge of the contents of the aerosol container 12.
The apparatus 10 includes an rod member 14 which serves as the component onto which, or within which, a number of other components of the apparatus are disposed. As shown in this preferred embodiment, the rod member has a length which allows the apparatus to have an overall length of about 91 cm (three feet). This allows a user to remain relatively upright when marking a substrate and making a hole therein, while allowing the discharging end of the aerosol container to be located about 30cm (one foot) from the substrate. Of course, the rod member 14 can be of varying lengths, e.g., from a few inches (e.g., FIGS. 9-11 of U.S. Patent 5,368,202) to several feet, and of any crosssectional shape (e.g., circle, square) without adversely affecting the performance and other advantages of the present invention.
Most advantageously, the rod member is hollow and has a square cross-section. This allows the various components to reside within the apparatus, protected from disabling bumps, while still enabling a manufacturer to readily vary the length on the rod member to suit the desired application.
A handle grip 19 for manual grasping by the user of the discharging apparatus 10 is disposed at the rear end 16 of the rod member 14. Means for receiving and holding the aerosol container 12 is disposed adjacent the front end 18 of the rod member 14. In the illustrated embodiment, the container holding means comprises a generally cylindrical structure 20 which is sized to receive the aerosol container 12. Within the container holder 20 is an annular flange (not shown) that is adapted to engage a ridge portion on the aerosol container 12 thereby properly positioning and retaining the aerosol container 12 within the cylindrical structure 20.
The apparatus 10 also includes actuating means which effects movement of the aerosol container actuator between the discharging and non-discharging positions. In a preferred embodiment, the actuating means comprises an actuator push rod 23 that is mounted on or within the rod member 14 and is movable relative to the aerosol container in the aerosol container holding means. In this way, the actuating means can be moved between a discharging position, wherein the actuator rod 23 effects movement of the aerosol container actuator into the discharging position, and a non-discharging position wherein the actuator is not moved into the discharging position.
Generally, discharge of the container contents is effected by moving the actuator from its normal, non. discharging, position into a discharging position, wherein the spring-biased container valve 25 (shown in FIG. 6) is opened. Various types of actuators and biased valves may be used, and are well known in the art. Exemplary of such combinations are valves that are opened when the actuator is moved laterally with respect to the longitudinal axis of the container, and those that are opened when the actuator is moved toward the container. The actuating means should be designed to accommodate one or both types of aerosol container valve and actuator combinations.
The apparatus 10 also includes means for controlling the movement of the actuating means, and thereby the aerosol container actuator, between the discharging and non-discharging positions. In the illustrated embodiment, the control means comprises a triggering mechanism which includes a trigger 24 that is disposed adjacent the rear end 16 of the rod member 14 near the handle grip 19. The trigger 24 is attached to and controls the movement of a trigger rod 27 disposed on, or most preferably within, the hollow rod member 14 as shown in FIG. 6. The movement of the trigger rod 27 is translated into lateral movement of the actuator rod 23 by a bell crank 29 disposed near the front end of the housing 14. Optimally, the illustrated embodiment may also include an optional lock switch 26 which, if utilized can be used to place the trigger 24, and thereby the triggering mechanism, into a continuously discharging position. The use of such an arrangement is disclosed in U.S. Patent 5,368,202.
While the means and components which allow a user to control the discharge of an aerosol container held at a remote distance from the user have been described in connection with certain preferred embodiments, those skilled in the art will appreciate that the present invention is equally applicable to other aerosol container discharging devices.
In accordance with the present invention, the apparatus 10 includes means comprising a stake member for creating an opening in a substrate. As set forth in FIGS. 1-3, there is illustrated a first embodiment of the discharging apparatus 10, wherein an embodiment of the stake member 30 is depicted. As shown in FIGS. 1-3, the stake member 30 is disposed on the front end 18 of the rod member 14, within a cavity formed by the aerosol container holding means 20. The stake member will advantageously taper along its length, and preferably terminates in a point at its distal end, such providing for ease of insertion of the stake member into the substrate.
As will be appreciated by those skilled in the art, there are a number of different types of stake members that can provide an opening in the ground suitable for the insertion of a flag marker, and a number of ways the stake member can be mounted onto the dispensing apparatus. It is not intended that the invention be limited to either the particular type of stake member, or the specific mounting method, depicted in the figures and described herein. For example, and alternatively, the stake member may comprise a plastic molded part which tapers to a point and has a generally x-shaped cross-section, and the stake member may be attached onto the rod member directly.
The stake member is preferably oriented in the position depicted, wherein the stake member projects generally perpendicularly away from the front end 18 of the rod member 14. This arrangement of the stake member 30 relative to the rod member 14 prevents the stake member 30 from interfering with any marking that may occur, while retaining the ability of the stake member to be easily manipulated by the user.
When the user of the apparatus 10 wishes to create an opening in the surface being marked, e.g., in the ground allowing insertion of a marker flag, the user need only manipulate the discharging apparatus 10 so that the stake member 30 is substantially perpendicular relative to the surface being marked. Once the stake member 30 is near the perpendicular position, it can be inserted into the surface, as shown in FIG. 3, thereby creating a hole for the marker flag. The flag may then be manually inserted into the hold.
The stake member 30 may also be adapted so that it can be easily attached to presently existing aerosol discharging devices in order to retrofit them for flag-staking capability. In particular, and as shown in the embodiment of FIGS.1-6 , the stake member 30 includes a mounting bracket 34 which facilitates the connection of the stake member 30 to the container holder 20. As shown in FIG. 5, the mounting bracket 34 preferably comprises two mirror image portions 35, 36 which are joined together by any suitable fastening means, such as, for example, the illustrated screw 38 or a rivet. The mounting bracket also includes a cavity 40 within which a flange portion 42 which is located on one end of the stake member 30 can be positioned. Thus, as shown in FIG. 5, in order to attach the stake member 30 to the mounting bracket 34, the mirror image portions 35, 36 need only be separated, the flange portion 42 inserted into the cavity 40, and the mirror image portions 35, 36 reassembled together via the fastening means, such as a screw 38.
Once the stake member 30 has been attached to the mounting bracket 34, the mounting bracket 34, in turn, can be attached to the front end face 32 of the rod member 14. As shown in FIG. 4, in order to facilitate this connection, the free end 47 of the mounting bracket has a smaller cross sectional area than the front end 18 of the rod member 14. Thus, the free end 47 of the mounting bracket 34 can be easily inserted into the front end face 32 of the container holder 20. While careful attention to dimensions can provide a mounting bracket that is held in place on the front end of the rod member by friction alone, such may be secured in place by use of any suitable attachment means, such as, e.g., the illustrated nut 44 and bolt 46. In order to ensure that free end 47 of the mounting bracket 34 is properly inserted, the end of the bracket which receives the stake member 30 is slightly larger than the free end 47 such that an collar 48 is created between the two ends of the bracket. This collar 48 engages the front end face 32 of the holder 20 when the free end 47 of the bracket is fully inserted into the holder 20.
Those skilled in the art will appreciate that, while the illustrated mounting bracket provides a simple means for attaching the stake member to the discharging apparatus, other types of mounting brackets and means also could be used to attach the stake member to the discharging apparatus. The stake member even could be formed integrally with the rod member or aerosol container holder of the discharging apparatus. In addition, it will be appreciated that other orientations of the stake member relative to the member could be used, including projecting the stake member angularly away from the front end of the housing and attaching the stake member at some point adjacent the front end other than at the end face of the front end.
While the present invention has been described with an emphasis upon preferred embodiments, it will be obvious to those of ordinary skill in the art that variations of the preferred embodiments disclosed herein may be used and that it is intended that the invention may be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications encompassed within the scope of the invention as defined by the following claims.

Claims

An apparatus (10) for use in marking the surface of the ground, comprising means for discharging the contents of an aerosol container (12) to mark the surface, the aerosol container (12) having an actuator which can be moved between discharging and non-discharging positions, the discharging means comprising:

a rod member (14) having a front and a rear end;

means (20) for holding the aerosol container (12) disposed adjacent the front end of the rod member (14);

actuating means (27,29,23) which effects movement of the aerosol container actuator between discharging and non-discharging positions;

means (24) for controlling movement of the actuating means; and said apparatus being characterised by

means comprising a stake member (30) for creating an opening in the surface of the ground.
The apparatus of claim 1, wherein the stake member (30) has a first and second end, and wherein a flange (42) is provided on the first end.
The apparatus of claim 2, wherein at least the flange (42) of the stake member (30) is retained within a cavity (40) of a mounting bracket (34), wherein the mounting bracket (34) is attached to the aerosol container holding means (20).
The apparatus of claim 3, wherein the mounting bracket comprises at least two pieces (35,36) which are joined together by a fastening means (38).
The apparatus of any one of the preceding claims, wherein the stake member (30) is comprised of a metal and has a generally circular cross-section, and wherein the ground-engaging end of the stake member tapers to a point.
The apparatus of claim 5, wherein the stake member (30) is a nail.