New! View global litigation for patent families

WO1996024147A1 - Fire alarm extension apparatus and method - Google Patents

Fire alarm extension apparatus and method

Info

Publication number
WO1996024147A1
WO1996024147A1 PCT/US1995/013374 US9513374W WO1996024147A1 WO 1996024147 A1 WO1996024147 A1 WO 1996024147A1 US 9513374 W US9513374 W US 9513374W WO 1996024147 A1 WO1996024147 A1 WO 1996024147A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
pull
fire
alarm
lever
switch
Prior art date
Application number
PCT/US1995/013374
Other languages
French (fr)
Inventor
J. Riley Hawkins
Nicole E. Hawkins
Original Assignee
Georgia Tech Research Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02Details
    • H01H23/12Movable parts; Contacts mounted thereon
    • H01H23/14Tumblers
    • H01H23/141Tumblers provided with extensions, e.g. for actuation by a child
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch

Abstract

Fire alarm extension apparatuses (100) permit actuation of a fire alarm pull switch (11) by persons with a handicap. The fire alarm extension apparatuses (100) each comprise a clip (33) for attachment to a pull lever (14). An elongated member (132) is attached to the clip (33) for permitting movement of the clip (33) and the pull lever while at a remote position. In a first embodiment, the elongated member is a flat rigid shaft mounted to a wall via a mounting block. In a second embodiment, the elongated member (132) is a coated wire which permits pivotal movement of the lever (14) as well as the cover (12) without mechanical stress to the apparatus. The second embodiment has a frictional mechanism (151) for inhibiting movement of the wire for preventing inadvertent actuation of the switch and a mechanism (152) for ensuring that the slanted-L-shaped handle (134) remains in the desired positon.

Description

FIRE ALARM EXTENSION APPARATUS AND METHOD

FIELD OF THE INVENTION

The present invention generally relates to fire alarm systems in buildings, and more particularly, to a fire alarm extension apparatus and method for permitting remote actuation of a fire pull switch by, particularly, persons with a handicap, or disability.

BACKGROUND OF THE INVENTION

A conventional fire alarm system which is installed in a building has numerous fire alarm pull switches situated throughout the building for actuating the fire alarm system. There are two common types of fire alarm pull switches. One common type is produced by the Edwards Company, Massachusetts, USA, and the other is produced by the Simplex Corporation, USA. These types of switches are briefly described hereafter.

A front elevational view of the Edwards fire alarm pull switch is illustrated in Fig. 1A and is generally denoted by reference numeral 11. As shown in Fig. 1A, the Edwards fire alarm pull switch 11 has a cover 12 which protrudes slightly outwardly from a wall in a convex configuration. The cover 12 has an inwardly protruding cavity 13. A rectangular-shaped pull lever 14 is disposed in front of the cavity 13 and is slightly curved inwardly near its top end 14a (best shown in Fig. 6) . The pull lever 14 is mounted with a hinge so that it can be pivoted outwardly and downwardly in order to actuate the fire alarm pull switch 11. The cavity 13 enables the fingers of a person to be placed behind the pull lever 14 to facilitate movement of the lever 14. Moreover, the cover 14 of the switch 11 is hinged at its lower end 12b so that the cover 12 can be moved outwardly and downwardly from the wall, while pivoting about the end 12b, so that the internal mechanism of the fire alarm pull switch 11 is exposed and so that the switch 11 can be reset after the pull lever 14 has been pulled.

The Simplex fire alarm pull switch is illustrated in Fig. IB and generally denoted by reference numeral 21. As shown in Fig. IB, the Simplex fire alarm pull switch 21 also comprises a cover 22 which is hinged at an end 22b for pivoting the cover 22 outwardly and downwardly from the wall about a bottom end 22b. Further, the Simplex fire alarm pull switch 21 has a cavity 23 and a T-shaped pull lever 24 disposed in front of the cavity 23, which is hinged at an end 24b so that the T-shaped pull lever 24 can be pivoted outwardly about the end 24b.

Current United States law, specifically, the Americans With Disabilities Act (ADA) of 1990, requires that fire alarm pull switches, including those shown in Figs. 1A and IB, must be located below the maximum reach range of 48 inches or below 54 inches, if there is a guarantee of clear floor space, so that persons with a handicap can operate such switches. Moreover, there are millions of alarm pull switches in the United States which do not meet the height requirements and therefore must be moved.

However, moving an alarm pull switch to accommodate the height requirements would usually require splicing the fire alarm wires, but splicing such wires is prohibited by municipal fire and electrical codes as well as other laws. Accordingly, a fresh run of wire from the switch to the main fire alarm console is typically required in order to move a switch. Such a requirement can result in the use of miles of wire in large commercial and public complexes and, hence, a huge expense.

STJMMA Y OF THE INVENTION

An object of the present invention is to provide a system and method for ensuring that fire alarm pull switches conform to the U.S. Americans With Disabilities Act (ADA) of 1990.

Another object of the present invention is to provide a fire alarm extension apparatus and method for adapting a fire alarm pull switch so that it conforms to the ADA.

Another object of the present invention is to provide a solution for conforming fire alarm pull switches to the ADA without having to rewire switches to the main fire alarm console or elsewhere. Another object of the present invention is to provide an apparatus and method for conforming the fire alarm pull switches to the ADA in an inexpensive, efficient, and reliable manner.

Another object of the present invention is to provide an apparatus and method for conforming a fire alarm pull switch to the ADA in a simple yet effective manner.

Briefly described, the present invention provides for several novel embodiments of a fire alarm extension apparatus having associated novel methodology. In these embodiments, an elongated member is attached to a pull lever of a fire alarm pull switch by a lever attachment mechanism, for example, a clip. Moreover, the elongated member is secured to the wall with a mounting guide mechanism which permits movement of the elongated member in a direction to permit movement of the pull lever and actuation of the fire alarm pull switch.

In a first embodiment, a flat rigid shaft, preferably plastic, is utilized as the elongated member. The flat rigid shaft has a C-shaped clip or other suitable lever attachment mechanism at one end for engaging and pulling on a pull lever of a fire alarm pull switch and a handle

(preferably T-shape) at the other end which can be grasped by a person for moving the lever at a remote location. The shaft is secured to the wall, while guided movement of the shaft is permitted in a direction toward and away from the lever via a mounting block. The mounting block, preferably plastic, has dual parallel guide rails for guiding the shaft along its longitudinal length. The mounting block is affixed to the wall via any conventional apparatus, including but not limited to, a screw, sticky pad, hook and loop arrangement (such as Velcro) , etc. The first embodiment is very simple in design and extremely inexpensive.

In a second embodiment of the present invention, an elongated member in the form of a cord, preferably a coated wire, is attached to the pull lever of the fire alarm pull switch via a clip or other suitable lever attachment mechanism. Moreover, the cord is passed through a mounting block adapted to secure the cord to the wall, while permitting movement of the cord in a direction toward and away from the pull lever to permit actuation of the fire alarm pull switch. The cord is structurally superior to the rigid shaft in the first embodiment in that it permits pivotal movement of the pull lever outwardly from the wall and permits pivotal movement of the fire alarm cover outwardly from the wall so that the fire alarm pull switch can be reset, both of which can occur without any attendant structural stress to and breakage of the apparatus.

A handle with a slanted- -shaped hook configuration is situated at the distal end of the cord. The slanted-L- shaped hook configuration of the handle permits easier grasping by a person, particularly a person with a handicap. Further, the mounting mechanism and the handle are configured to engage and mate with each other so that the handle is maintained at a particular horizontal posture for easier grasping by a person.

The mounting block has a friction mechanism, preferably a grooved aperture with a particular diameter, which inhibits movement of the cord in a direction toward and away from the pull lever. The frictional force applied by the friction mechanism to the cord is sufficient to counteract the weight (imposed by gravity) associated with the cord and handle so that the weight does not inadvertently actuate the pull lever, but is weak enough to permit easy actuation of the switch by a person. In fact, the weight of a person's hand is generally enough to pull the lever switch with the novel apparatus.

Also in the second embodiment, a novel clip accommodates various pull lever types. The clip has a cross section in the form of an interrogation symbol (a.k.a. question mark; i.e., "?'*). It has an internal cavity for receiving a pull lever which is either linear in configuration or curvilinear in configuration, for example but not limited to, the Edwards and Simplex pull levers, respectively. Moreover, the clip has a pair of orthogonal set screws for securely fastening the clip to a pull lever. Other objects, features, and advantages of the present invention will become apparent to one of skill in the art upon examination of the following drawings and detailed description. Any such additional objects, features, and advantages are intended to be included herein within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention can be better understood with reference to the following drawings, the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating principles of the present invention.

Fig. 1A is a front elevational view of a first type (i.e., Edwards) of a conventional fire alarm pull switch;

Fig. IB is a front elevation view of a second type (i.e., Simplex) of a conventional fire alarm pull switch; Fig. 2A is a perspective view of a first embodiment of a fire alarm extension apparatus in accordance with the present invention;

Fig. 2B is a cross-sectional view of the fire alarm extension apparatus of Fig. 2A; Fig. 3 is a perspective view of a second embodiment of a fire alarm extension apparatus in accordance with the present invention;

Fig. 4 is a perspective view of the fire alarm extension apparatus of Fig. 3 with its cover removed;

Fig. 5 is an assembly view of the fire alarm extension apparatus of Figs. 3 and 4; and

Fig. 6 is an exploded cross-sectional view of a clip associated with the second embodiment of the fire alarm extension apparatus as shown in Figs. 3 through 5.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference now to the drawings wherein like reference numerals designate corresponding parts throughout the several views, the first embodiment of the fire alarm extension apparatus of the present invention is illustrated in Figs. 2A and 2B and is generally denoted as reference numeral 30. The fire alarm extension apparatus 30 is shown in Fig. 2A mounted to a wall 31 for permitting actuation of a fire alarm pull switch 11, which is shown by way of example as an Edwards type switch. It should be emphasized that the several embodiments of the present invention can be utilized in connection with various types of fire alarm pull switches, including but not limited to, the Edwards type and the Simplex type, as described previously relative to Figs. 1A and IB, respectively.

The fire alarm extension apparatus 30 has an elongated flat shaft 32, preferably plastic, with a lever attachment mechanism 33 at one end for engaging the pull lever 14

(Fig. 1A) of the fire alarm pull switch 11 and a handle 34 at the opposing distal end. It is possible that the shaft 32 could be configured as a combination of interworking elements. The lever attachment mechanism 33 is produced in the form of C-shaped clip in the preferred embodiment, but obviously many other suitable attachment/mounting mechanisms are possible, for instance, a nut and screw arrangement. Further, the handle 34 is preferably formed with a T-shaped configuration, but, as with the shaft and clip, many other suitable embodiments are possible. The handle 34 permits movement of the switch lever 14 at a position which is remote from the fire alarm pull switch 11 and, particularly, at a lower vertical level which conforms with the ADA of 1990. Moreover, in a preferred embodiment, the shaft 32 has two shaft regions 32a, 32b with different widths. The region 32b is designed to have a larger width than the region 32a which permits writing, such as "fire, " to be written in large letters for greater visibility.

The shaft 32 is secured to the wall 31 via a substantially rectangular mounting block 36, which is also plastic in the preferred embodiment, but obviously use of other materials is possible. The mounting block 36 has elongated dual parallel guide rails 37a, 37b, each having a substantially C-shaped cross section, for receiving the shaft at opposite side edges and guiding the shaft 32 along its longitudinal length. The mounting block 36 essentially enables movement of the shaft 32 in a direction to and away from the pull lever 14, but prevents movement of the shaft 32 in a direction which is transverse to the foregoing direction. This is significant in that it maintains the handle 34 in a desirable fixed posture for easy grasping by a person. The mounting block 36 is affixed to the wall 31 via any conventional mechanism, such as a screw(s) , sticky pad, hook and loop arrangement, etc.

The second embodiment of the fire alarm extension apparatus in accordance with the present invention is illustrated in Figs. 3 through 6 and is generally denoted as reference numeral 100. The fire alarm extension apparatus 100 is mounted to the wall 31 and permits actuation of the fire alarm pull switch 11 at a location which is remote from the pull lever 14, and particularly, at a location which is much lower vertically to comply with the ADA of 1990 so that persons with a handicap can actuate the switch 11. The fire alarm extension apparatus 100 has a substantially flexible cord 132 which has a lever attachment mechanism 133 in the preferred form of a clip situated at one end for engaging the pull lever 14 of the switch 11 and a handle 133 situated at the other end of the cord 132 for pulling the cord 132 in a direction away from the switch lever 14. Preferably, the handle 134 is formed in a slanted-L configuration with a generally cylindrical cross section and is manufactured from nylon, but many other materials would obviously be suitable. The slanted- -shaped handle 134 has a sideways oriented opening which permits a person to easily grasp and pull on the handle 134. Further, the slanted- -shaped handle 134 provides a grasping member which is transverse to the direction of pull for easier movement thereof.

The cord 132 in the preferred embodiment is model 20945v4 stainless steel wire with a vinyl coating manufactured by and commercially available from Sava Industries, Inc., New Jersey, USA. However, many other suitable materials for the cord 132 are possible. Moreover, single shank balls 154, which are preferably model no. 664-C3 manufactured by and commercially available from Cableware Technology Corporation, Florida, USA, are affixed to the ends of the cord 132 for securing the ends to the clip 133 and the handle 134. At the handle end, the ball 154 is situated within a cylindrical aperture 156 and the cord 132 is permitted to pass through a vertically- oriented grooved channel 157 connecting the aperture 156 to the top of the handle 134. Furthermore, at the clip end, the ball 154 is situated and rests within a cylindrical cavity 161 located in the top of the clip 133.

The cord 132 is secured in close proximity to the wall 31 via a mounting block 136 having a cover 143, which slides over the mounting block 136 and fits snug. The cover 143 has a slot 145 for receiving and surrounding the cord 132 when the cover is in place on the mounting block 136. Further, the cover is preferably plastic in construction, can be appropriately decorated, can include a decal(s), and may have braille writing disposed thereon for the blind, if desired. As shown in Figs. 4 and 5, the mounting block 136, also preferably plastic or any other suitable material, is C-shaped with a back surface 144 for securing contiguous with the wall 31. Screws 146 pass through apertures 147 in the mounting block 136 in order to secure the mounting block 136 to the wall 31. The mounting block 136 has a central region 136a, an upper end region 136b which protrudes outwardly from the wall 131, and a lower end region 136c which also protrudes outwardly from the wall 31. The upper end region 136b has an elongated two-step groove aperture 151 with a large width region 151a and a small width region 151b. The smaller width region 151b is situated centrally with respect to the large width region 151a. Moreover, the cord 132 is passed through the small width region 151b and is sized to impart frictional force against movement of the cord 132 therethrough. The small region 151b provides sufficient frictional force to counteract the weight associated with the combination of the clip 133, cord 132, and handle 134 so that the weight does not inadvertently move the pull lever 14, while permitting the switch lever 14 to be easily actuated by a person via pulling the handle 134 in a downward direction.

It is envisioned that a force for inhibiting movement of the cord 132 to counteract the weight of the clip 133, cord 132, and handle 134 could be applied by other mechanisms. For instance, a pulley mechanism (not shown) having the cord 132 passed therethrough could be employed for inhibiting movement of the cord, while permitting actuation of the switch lever 14 by a person. As another example, a clamping mechanism (not shown) could be utilized for affirmatively binding the cord 132. There are numerous other possibilities. The lower end region 136c has an elongated cylindrical aperture 152 which is substantially aligned with and receives the cord 132 therethrough. The cylindrical aperture 152 is sized in diameter to freely accept an upper elongated vertically-oriented portion 153 of the slanted-L- shaped handle 134. The portion 153 slides into and generally mates with the aperture 152. Based upon this mating configuration, the mounting block 136 prevents the handle 134 from moving in a direction transverse to the movement direction of the cord 132, while permitting movement of the cord 132 in a direction to and away from the switch lever 14.

An exploded cross-sectional view of the novel clip 133 is illustrated in Fig. 6. The clip 133 has a cross section in the form of an interrogation symbol, or mark (a.k.a. question mark; i.e., "?"). Within the clip body is an internal cavity 164. First and second set screws 166a, 166b pass through orthogonally arranged threaded apertures 167a, 167b. The set screws 166a, 166b are threaded through the respective apertures 166a, 167b to the extent necessary to bind and attach the clip 133 to the levers 14, 24 (Figs. 1A, IB) of the switches 11, 21 (Figs. 1A, IB) . When the clip 133 is to be affixed to the lever 14, both of the set screws 166a, 166b are adjusted to contact the lever 14 so that the clip 133 is rigidly affixed to the lever 14. Because the Edwards switch lever 14 is curvilinear, as is shown in Fig. 6, the set screw 167a is significant. If the set screw 167a were not present, then the clip 133 would have a tendency to move relative to the lever 14 and perhaps be disengaged from the lever 14. In contrast, in the case when the clip 133 is affixed to the Simplex switch lever 24, the set screw 166b alone is sufficient to affect rigid fixed engagement therebetween. Hence, the unique design of the clip 133 permits attachment to, among others, the two primary configurations of the switch lever. -li¬ lt will be obvious to those skilled in the art that many variations and modifications may be made to the preferred embodiments as described above without departing substantially from the spirit and scope of the present invention. It is intended that all such variations and modifications be included herein within the scope of the present invention, as is set forth in the following claims.

Claims

CLAIMSWherefore, the following is claimed:
1. An apparatus for permitting remote actuation of a fire alarm pull switch by persons with a handicap, comprising: a lever attachment mechanism for connection to a pull lever of the fire alarm pull switch; and an elongated member attached to said lever attachment mechanism for permitting movement of said lever attachment mechanism and said pull lever while at a position remote from said pull lever in a direction to permit actuation of said fire alarm pull switch; and means for inhibiting movement of said elongated member in said direction.
2. The apparatus of claim 1, wherein said lever attachment mechanism is a substantially C-shaped clip.
3. The apparatus of claim l, wherein said elongated member comprises a substantially flexible cord.
4. The apparatus of claim 1, further comprising a mounting guide mechanism adapted to secure said elongated member to a wall while permitting said movement in said direction of said elongated member.
5. The apparatus of claim l, wherein said means for inhibiting movement of said elongated member comprises an aperture in said mounting guide mechanism of a sufficient size to impart a frictional force against said elongated member.
6. The apparatus of claim l, further comprising: a handle detachably secured to said elongated member; and a means for guiding said handle in said direction and preventing movement of said handle transverse to said direction.
7. The apparatus of claim 4, wherein said mounting guide mechanism comprises an elongated wall piece with at least two apertures which are spaced apart for receiving and guiding said elongated member therethrough, and at least two apertures for receiving attachment means for fixedly securing said mounting guide mechanism to the wall.
8. The apparatus of claim 5, further comprising a mounting mechanism adapted to secure said elongated member to a wall while permitting said movement in said direction of said elongated member; wherein said elongated member comprises a cord; and wherein said means for inhibiting comprises at least one aperture situated in said mounting mechanism, said aperture adapted to receive said cord and being of a size to permit said cord to slide therethrough while imparting frictional force to said cord.
9. The apparatus of claim 6, wherein said handle comprises a curvature with an opening therein so that said handle can be hooked and pulled.
10. An apparatus for lowering a position at which a fire alarm pull switch can be actuated so that persons with a handicap can operate said fire alarm pull switch, comprising: movement means for permitting movement of a pull lever of the fire alarm pull switch located on a wall at a distance remote from said pull lever; lever attachment attaching said movement means to said pull lever; wall mount securing said movement means to said wall while permitting movement in a direction to permit movement of said pull lever and actuation of said fire alarm pull switch; and friction imparting means for inhibiting said movement of said movement means.
11. The apparatus of claim 10, wherein said lever attachment is a substantially C-shaped clip.
12. The apparatus of claim 10, wherein said movement means comprises a substantially flexible cord.
13. The apparatus of claim 10, wherein said friction imparting means comprises an aperture in said wall mount.
14. The apparatus of claim 10, further comprising a handle detachably secured to said movement means, said handle formed generally in the shape of an interrogation symbol.
15. The apparatus of claim 10, wherein said wall mount comprises an elongated wall piece with at least two apertures which are spaced apart for slidably receiving and guiding said movement means therethrough and at least two apertures for receiving attachment means for fixedly securing said mount to the wall.
16. The apparatus of claim 13, wherein said elongated member comprises a cord and wherein said friction imparting means is an aperture situated in said mount, said aperture adapted to receive said cord and being of a size to permit said cord to slide therethrough while imparting frictional force to said cord.
17. A method for permitting actuation of a fire alarm pull switch by persons with a handicap, comprising the steps of: attaching a lever attachment mechanism at a first end of an elongated member to a pull lever of the fire alarm pull switch; disposing a second end of said elongated member at a location lower than said fire alarm pull switch; attaching a handle to said second end of said elongated member; permitting movement of said elongated member in a direction away from said pull lever; and providing a means for inhibiting movement of said elongated member.
18. The method of claim 17, further comprising the step of securing said elongated member to a wall which supports said fire alarm pull switch while permitting said movement of said elongated member in said direction and while inhibiting any movement of said elongated member transversely to said direction.
19. The method of claim 17, further comprising the step of inhibiting said movement to counteract weight associated with said elongated member so that said weight is insufficient to move said pull lever in said direction.
20. The method of claim 17, wherein said fire alarm pull switch is disposed on a wall and further comprising the steps of: securing said elongated member to a wall which supports said fire alarm pull switch while permitting said movement of said elongated member in said direction; and permitting movement of a hinged cover of said fire alarm pull switch in a direction outwardly from said wall without detaching said elongated member from said lever.
21. An apparatus for permitting remote actuation of fire alarm pull switch by handicap persons, comprising: a lever attachment mechanism for connection to a pull lever of the fire alarm pull switch; an elongated flexible cord attached to said lever attachment mechanism for permitting movement of said lever attachment mechanism and the pull lever while at a position remote from the pull lever in a direction to permit actuation of said fire alarm pull switch; and a wall mount securing said cord to said wall while permitting movement in a direction to permit movement of said pull lever and actuation of said fire alarm pull switch.
PCT/US1995/013374 1995-02-03 1995-10-10 Fire alarm extension apparatus and method WO1996024147A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US08383413 US5590759A (en) 1995-02-03 1995-02-03 Fire alarm extension apparatus and method
US08/383,413 1995-02-03

Publications (1)

Publication Number Publication Date
WO1996024147A1 true true WO1996024147A1 (en) 1996-08-08

Family

ID=23513027

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/013374 WO1996024147A1 (en) 1995-02-03 1995-10-10 Fire alarm extension apparatus and method

Country Status (2)

Country Link
US (1) US5590759A (en)
WO (1) WO1996024147A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2209814A1 (en) * 1997-06-26 1998-12-26 Simon L. Elster Light switch extension
US5806665A (en) * 1997-08-06 1998-09-15 American Tack & Hardware Co., Inc. Arcuate switch actuator
US7345251B2 (en) * 2005-05-03 2008-03-18 Dolan Northwest, Llc Actuator for use with electrical switches
US7067755B1 (en) * 2005-05-23 2006-06-27 Schoal Jr Edward Save a switch
US7544911B2 (en) * 2006-01-20 2009-06-09 John Socha-Leialoha Model railroad switch actuators
US8432266B2 (en) * 2011-03-29 2013-04-30 Simplexgrinnell Lp Pull station

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827039A (en) * 1973-01-31 1974-07-30 J Agnese Portable alarm system
US3916134A (en) * 1974-11-20 1975-10-28 Clarence K Hansen Extension control for a wall mounted toggle switch
US3939725A (en) * 1973-10-25 1976-02-24 Maynard Braverman Remote switch actuating device
US4870232A (en) * 1988-08-08 1989-09-26 Hoogland John A Extension control for a switch
US5448031A (en) * 1994-05-27 1995-09-05 Firecom, Inc. Structure for adapting the height of an alarm actuator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745243A (en) * 1986-12-15 1988-05-17 Wang Paul S Decorative light switch cover
US5219066A (en) * 1992-02-10 1993-06-15 Kevin Jameson Wall mounted alarm switch with adjustable height actuator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827039A (en) * 1973-01-31 1974-07-30 J Agnese Portable alarm system
US3939725A (en) * 1973-10-25 1976-02-24 Maynard Braverman Remote switch actuating device
US3916134A (en) * 1974-11-20 1975-10-28 Clarence K Hansen Extension control for a wall mounted toggle switch
US4870232A (en) * 1988-08-08 1989-09-26 Hoogland John A Extension control for a switch
US5448031A (en) * 1994-05-27 1995-09-05 Firecom, Inc. Structure for adapting the height of an alarm actuator

Also Published As

Publication number Publication date Type
US5590759A (en) 1997-01-07 grant

Similar Documents

Publication Publication Date Title
US5493757A (en) Protective handle and adapter for use with a surgical lighting fixture
US5277391A (en) Shower holder for use with a wall rod
US5586811A (en) Adjustment device for chair arms
US6062647A (en) Adjustable armrest assembly
US4119255A (en) Apparatus for automatically dispensing material from a roll
US4917360A (en) Operating device for electric chain block
US5169106A (en) Quick attach/release pole clamp
US4240604A (en) Clamping device and its use
US4688491A (en) Grommet arrangement for office furniture desk tops
US5671505A (en) Preloadable cord lock requiring less force to preload and to actuate
US5868335A (en) Tissue roll dispenser
US5621927A (en) Utility tray and bathtub caddie
US5580155A (en) Cabinet lighting system
US5192227A (en) Din rail mounting bracket
US4655423A (en) Plastic clip with integral nail
US4832271A (en) Dispenser for roll of material
US5954161A (en) Braking structure for rehabilitation trolley
US6669254B2 (en) Manual pick-up device
US5337657A (en) Computer training and support table system
US6550490B1 (en) Grasping attachment for use with a cane
US6551226B1 (en) Adjustment apparatus for exercise machine
US4607253A (en) Door guard with alarm device
US4513923A (en) Commode toilet tissue dispenser
US5511442A (en) Control system with bowden wire assembly end clip
US6029868A (en) Garment hanger and marker clip

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA MX

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)