Patent Application
20210404213
Conventional interior door hardware kits include doorknobs or door handles, escutcheon plates, a spindle, a spring-loaded latch bolt mechanism mounted inside the door, and a bolt face plate. The kit also includes a latch plate that is mounted on the door jamb of a door frame opposite both the spring-loaded latch bolt and the bolt face place.
Conventional interior door latch plates are either a full lip latch plate or a T-strike lip latch plate. The latch plates are comprised of both a flat base portion and a curvature lip portion. The latch plate is mounted on the door jamb of a door frame using fastening screws inserted through apertures of the base plate portion. The door spring-loaded latch bolt mechanism operates with the complementary latch plate in the following manner: when an individual shuts a door inside a door frame, the front face of the angled bolt of the door spring-loaded latch bolt mechanism hits (strikes) the front face of the lip of the latch plate, thereby retracting the angled bolt inside of the door spring-loaded latch bolt mechanism. The door is completely shut when the angled bolt rests inside the base plate portion's opening for receiving the door spring-loaded latch bolt. To firmly shut the door against the door stop of the door frame and eliminate door rattle, the base plate portion has an adjustable tab inside the base plate portion's opening for receiving the door spring-loaded latch bolt.
Conventional door jamb latch plates are full lip latch plates and T-strike lip latch plates. Their category of prior art “lip strike latch plates” originates from the manner in which the door spring-loaded latch bolt and the complementary latch plate operate together. The angled bolt retracts inside the door spring-loaded latch bolt mechanism when the front face of the angled bolt hits (strikes) the front face of the curvature lip portion of the latch plate. Thus, convention door jamb latch plates are lip strike latch plates.
Conventional interior door latch plates comprise a stamped metal, single member having a flat base portion and a curvature lip portion. The conventional single member latch plates are either full lip latch plates or T-strike lip latch plates and are typically found in houses, apartments, and other residential buildings. Complex interior door latch plates comprise two or more members working together to perform similar functions of the conventional single member interior door latch plates.
Conventional interior door latch plates serve three important functions. First, they work with spring-loaded latch bolt mechanisms to shut the door in the door frame, hold the door closed, and eliminate door rattle with the adjustable tab.
Second, they protect the door jamb of the door frame from the abrasive front face of the angled bolt of the door spring-loaded latch bolt mechanism wherein the flat base portion covers the door jamb, thereby eliminating dents and gouges in the door jamb.
Third, they protect the architrave surrounding the door frame from the abrasive front face of the angled bolt of the door spring-loaded latch bolt mechanism wherein the flat base portion and the curvature lip portion cover the front edge of the architrave, thereby eliminating dents and gouges in the front edge of the architrave.
Conventional interior door latch plates accomplish both the second and the third functions as follows: the “leading edge” of the flat base portion extends outwards away from the front edge of the door jamb, thereby protecting the door jamb. The curvature lip portion extends outwards away from the front edge of the architrave, thereby protecting the front edge of the architrave.
Spencer, U.S. Pat. No. 849,895 A, Apr. 9, 1907, shows a door jamb latch plate comprising two portions, a portion having a latch bolt receiving opening and a right-angle mounting portion having apertures to affix the mounting portion to the front face of a door jamb architrave.
Christy, U.S. Pat. No. 872,053A, Nov. 26, 1907, shows an adjustable door jamb latch plate having a combination of two interlocking strike plates to horizontally reposition latch bolt receiving openings to coordinate with a door spring-loaded latch bolt and a deadbolt.
Upton, U.S. Pat. No. 987,271 A, Mar. 21, 1911, shows a door jamb latch plate wherein a metal plate covers the angled bolt of the door spring-loaded latch bolt mechanism in
Wiley, U.S. Pat. No. 1,093,816 A, Apr. 21, 1914, shows an adjustable door jamb latch plate having a combination of two interlocking plates to vertically reposition latch bolt receiving openings to coordinate with a door spring-loaded latch bolt and a deadbolt.
Kennedy, U.S. Pat. No. 1,238,924 A, Sep. 4, 1917, shows an adjustable door jamb latch plate having one member with cutaways to vertically reposition latch bolt receiving openings to coordinate with a door spring-loaded latch bolt and a deadbolt.
Smith, U.S. Pat. No. 1,563,667 A, Dec. 1, 1925, shows an adjustable door jamb latch plate having a combination of two interlocking latch plates to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Karns, U.S. Pat. No. 1,733,412 A, Oct. 29, 1929, shows an adjustable door jamb latch plate having a combination of two interlocking members wherein one member is an adjustable tab.
Norring, U.S. Pat. No. 1,852,854 A, Apr. 5, 1932, shows an adjustable door jamb latch plate having a combination of two interlocking latch plates to horizontally reposition latch bolt receiving openings to coordinate with a door spring-loaded latch bolt and a deadbolt.
Snook, GB 430,369 A, Feb. 23, 1934, shows a template to position a door jamb latch plate but does not show the construction of a door jamb latch plate.
Goetz, U.S. Pat. No. 2,013,145 A, Sep. 3, 1935, shows an adjustable door jamb latch plate to horizontally reposition an elongated latch bolt receiving opening to coordinate with a door spring-loaded latch bolt and a deadbolt.
Tonks, GB 481,989 A, Nov. 11, 1936, shows a latch plate for a box or door wherein the latch plate comprises two portions, a latch bolt receiving opening portion and a front portion, both portions positioned at right angles to each other and both portions positioned in mortised areas of a box or a door frame.
Flora, U.S. Pat. No. 2,094,119 A, Sep. 28, 1937, shows an adjustable door jamb latch plate having a combination of two interlocking strike plates to horizontally and vertically reposition a latch strike plate to coordinate with a door spring-loaded latch bolt and the two interlocking latch plates having a small adjoining flat lip extending to approximately the front edge of a door jamb.
Flora, U.S. Pat. No. 2,153,080 A, Apr. 4, 1939, shows an adjustable door jamb latch plate having a combination of two interlocking latch plates to horizontally and vertically reposition a latch plate to coordinate with a door spring-loaded latch bolt and the two interlocking latch plates having a large adjoining flat lip extending to approximately the front edge of a door jamb.
Model, U.S. Pat. No. 2,231,414 A, Feb. 11, 1941, shows an adjustable door jamb latch plate having a combination of two members wherein one member is an adjustable tab.
Leary et al., U.S. Pat. No. 2,403,182 A, Jul. 2, 1946, shows an adjustable door jamb latch plate having two aperture opening gears to horizontally reposition latch bolt receiving openings to coordinate with a door spring-loaded latch bolt and a deadbolt.
Beckman, U.S. Pat. No. 2,446,206 A, Aug. 3, 1948, shows a door jamb latch plate comprising a front tab and a rear tab and a wear plate between the front edge of the latch plate and the front edge of a door jamb.
Miller, U.S. Pat. No. 2,535,444 A, Dec. 26, 1950, shows an adjustable door jamb latch plate having two members, a latch plate and an anti-rattle clip to coordinate with a door spring-loaded latch bolt.
Anstine, U.S. Pat. No. 2,572,428 A, Oct. 23, 1951, shows an adjustable door jamb latch plate to horizontally and vertically reposition latch bolt receiving openings to coordinate with a door spring-loaded latch bolt or deadbolt.
Bissot, U.S. Pat. No. 2,695,807 A, Nov. 30, 1954, shows an adjustable door jamb latch plate having a combination of two interlocking latch plates to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Gravino, U.S. Pat. No. 2,787,490 A, Apr. 2, 1957, shows an adjustable door jamb latch plate having a combination of two members, an inner plate and an outer plate wherein the outer plate having an elongated T-strike shape and the front edge of the outer plate extending to the front edge of a door jamb.
Wickstrom, U.S. Pat. No. 2,713,506 A, Jul. 19, 1955, shows an adjustable door jamb latch plate having a combination of two interlocking latch strike plates to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Russell, U.S. Pat. No. 2,798,754 A, Jul. 9, 1957; Russell, U.S. Pat. No. 3,241,873 A, Mar. 22, 1966; Russell, U.S. Pat. No. 3,257,139 A, Jun. 21, 1966; Russell, U.S. Pat. No. 3,361,466 A, Jan. 2, 1968; Russell, U.S. Pat. No. 3,416,829 A, Dec. 17, 1968; and Russell, U.S. Pat. No. 3,506,293 A, Apr. 14, 1970; show a door jamb latch plate having a combination of two interlocking latch plates to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Royalty, U.S. Pat. No. 3,006,677 A, Oct. 31, 1961, shows an adjustable door jamb latch plate having a combination of two members, a latch plate and a horizontally adjustable tab.
Rosenberger, U.S. Pat. No. 3,395,935 A, Aug. 6, 1968, shows an adjustable door jamb latch plate having a combination of two members, a latch plate and a horizontally adjustable tab.
Brandt et al., U.S. Pat. No. 3,401,487 A, Sep. 17, 1968, shows an adjustable door jamb latch plate having a combination of two members, a base plate and a horizontal sliding outer plate to coordinate the latch bolt receiving opening with a door spring-loaded latch bolt.
Russell et al., U.S. Pat. No. 3,506,293 A, April 1970, shows an adjustable door jamb latch plate having a combination of two members, a base plate and an adjustable outer plate to coordinate a latch bolt receiving opening with a door spring-loaded latch bolt.
Sushan, CA 856,109 A, Nov. 17, 1970, shows a T-shaped, elongated, entry door guard and elongated door jamb latch plate to prevent unauthorized unlocking of an exterior entry door spring-loaded latch bolt, using a plastic credit card.
Thiel, U.S. Pat. No. 4,105,235 A, Aug. 8, 1978, shows a combination of three interlocking door jamb latch plates to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
St. Aubin, U.S. Pat. No. 4,171,836 A, Oct. 23, 1979, shows a combination of two interlocking door jamb latch plates, having vertical rows of teeth, to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Moore, U.S. Pat. No. 4,288,120 A, Sep. 8, 1981, shows a combination of two interlocking door jamb latch plates to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Allenbaugh, U.S. Pat. No. 4,492,397 A, Jan. 18, 1985, shows a combination of three members, a door jamb latch plate and two screw blocks, to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
York, GB 2,245,305 A, Aug. 18, 1990, shows a combination of two members, a door jamb latch plate and a base plate, to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Nicholas, Jr. et al, U.S. Pat. No. 5,118,151 A, Jun. 2, 1992, shows a combination of five members, a door jamb latch plate and four other members, to horizontally and vertically reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Komatsu, JP H08296353 A, Apr. 26, 1995, shows a combination of two members, a door jamb latch plate and a dust box for a latch bolt receiving opening, wherein the door jamb latch plate having a flat portion and a curvature portion, and the flat portion adjacent to the curvature portion having concave grooves to make the flat portion adjacent to the curvature portion easily malleable to bend the flat portion adjacent to the curvature portion to reposition the front edge of the curvature portion to be close to the front edge of a door frame.
Roth, U.S. Pat. No. 5,757,269 A, May 26, 1998, shows a door jamb latch plate wherein the curvature lip of the door jamb latch plate extending to the front edge of a door jamb.
Matsuno, JP 2001329723 A, May 22, 2000, shows a combination of three members, a door jamb latch plate and two other members to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Viatcheslav, DE 10216718 A1, Apr. 10, 2002, shows a door jamb latch plate having an anti-rattle spring inside a latch bolt receiving opening.
Theune et al., U.S. Pat. No. 6,588,155 B1, Jul. 8, 2003, shows a combination of four members, a door jamb latch plate and three other members to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Wagner et al., US 2004/0164565 A1, Aug. 26, 2004, shows a door jamb latch plate comprising an elongated flat portion and a curvature portion along the front edge of the elongated flat portion to protect from damage the front edge of a door jamb and protect from damage the front edge of a door jamb architrave.
Casey, U.S. Pat. No. 7,240,931 B1, Jul. 10, 2007, shows a combination of two members, a door jamb latch plate and a base plate, to horizontally reposition the door jamb latch plate to coordinate with a door spring-loaded latch bolt.
Gosterisli, US 2011/0175378 A1, Jul. 21, 2011, shows a combination of two interlocking door jamb latch plates to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Mullet, US 2012/028627 A1, Nov. 16, 2012, shows a combination of two interlocking door jamb latch plates to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Komiya, JP 2015010398 A, Jun. 28, 2013, shows a combination of five members, a door jamb latch plate and four other members, to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Sweeten, US 2015/0204107 A1, Jul. 23, 2015, shows a door jamb latch plate having an elongated latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Magee, US 2016/0069105 A1, Mar. 10, 2016, shows a door jamb latch plate having two members, a door jamb latch plate and a base plate, wherein the front edge of the base plate having an edge on the back of the base plate wrapping around the front edge of a door jamb.
Fenwick, U.S. Pat. No. 9,822,550 A1, Nov. 21, 2017 and Fenwick, US 2018/0073272 A1, Mar. 15, 2018, show a door jamb latch plate having two members, a base plate and a lip constructed of flexible material affixed to the base plate.
Kamody, US 2018/0066449 A1, Mar. 8, 2018, shows templates to align a door jamb latch plate and a door spring-loaded latch bolt.
Moon, WO 2019/199066 A1, Oct. 17, 2019, shows a combination of three members, a door jamb latch plate and two other members, wherein the door jamb latch plate having a front edge extending to approximately the front edge of a door frame; a door frame includes both a door jamb and architrave covering the door jamb.
Alvarado, U.S. Pat. No. 10,544,602 B1, Jan. 28, 2020, shows a door jamb latch plate having a combination of two members, a lower plate and an upper plate to horizontally and vertically reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt.
Goldense, US 2020/0011126 A1, Jan. 9, 2020, shows a door jamb latch plate wherein the front leg of the door jamb latch plate wrapping around the front edge of a door jamb and the front leg of the door jamb latch plate having apertures to affix the front leg of the door jamb latch plate to the front edge of the door jamb with fasteners, including screws.
Deltana SP 225 door jamb latch plate shows a flat door jamb latch plate comprising a latch bolt receiving opening, an adjustable tab, and two apertures to affix the flat door jamb latch plate to a door jamb using fasteners, including screws, wherein the front edge of the flat door jamb latch plate extends ½ inch beyond the front edge of a door jamb for a 1⅜ inch thick interior door and extends ⅜ inch beyond the front edge of door jamb architrave having a front edge measuring ⅛ inch thick. (http://www.deltana.net)
Kwikset 83534-15 door jamb latch plate shows a combination of two members, a lower plate and an upper plate to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt, wherein the front edge of the door jamb latch plate extends ½ inch to ¾ inch beyond the front edge of a door jamb for a 1⅜ inch thick interior door, and extends ⅜ inch to ⅝ inch beyond the front edge of door jamb architrave having a front edge measuring ⅛ inch thick. (http://www.doorlocksdirect.com/kwikset-adjustable-lip-strike-round-corner-2-1-4-h x-1-3-4-2-total-w-satin-nickel-83534-15/)
The term “lip strike latch plates” as used herein refers to prior art latch plates. Prior art latch plates, which include full lip latch plates and T-strike lip latch plates, are “lip strike latch plates” comprised of a flat base plate and a curvature lip, wherein the front face of the angled bolt of the door spring-loaded latch bolt mechanism hits (strikes) the front face of the curvature lip of the latch plates, thereby retracting the angled bolt inside of the door spring-loaded latch bolt mechanism. The lip strike latch plates have a lip that extends outwardly from the base plate, extending outwardly from the door jamb and extending outwardly from the front edge of the architrave, thereby protecting from dents and gouges both the door jamb and the front edge of architrave from direct contact with the angled bolt.
The term “edge strike latch plates” as used herein refers to present invention latch plates. Edge strike latch plates are comprised of a flat base plate, wherein the front face of the angled bolt of the door spring-loaded latch bolt mechanism hits (strikes) the front edge of the base plate, thereby retracting the angled bolt inside of the door spring-loaded bolt mechanism. For narrow-thickness architrave, the leading edge of the base plate proximates the front edge of the door jamb, thereby protecting from dents and gouges the door jamb from direct contact with the angled bolt. For wide-thickness architrave, the leading edge of the base plate can proximate the front edge of the wide-thickness architrave, thereby protecting from dents and gouges the both the door jamb and the architrave from direct contact with the angled bolt.
The present invention edge strike latch plates comprise a single member having a flat base plate and either a flat leading edge, a beveled leading edge, a rounded leading edge, or a flange. The present invention latch plates can be edge strike latch plates and T-strike edge strike latch plates.
The present invention latch plates perform five important functions. First, they work well with spring-loaded latch bolt mechanisms to shut the door in the door frame, hold the door closed, and eliminate door rattle with the optional adjustable tab.
Second, they protect the door jamb of the door frame from the abrasive front face of the angled bolt of the door spring-loaded latch bolt mechanism wherein the latch plate covers the door jamb, thereby eliminating dents and gouges in the door jamb.
Third, they protect narrow-thickness architrave surrounding the door jamb from the abrasive front face of the angled bolt of the door spring-loaded latch bolt mechanism wherein the angled bolt does not hit (strike) the front edge of the narrow-thickness architrave, thereby eliminating dents and gouges in the front edge of the architrave.
Narrow-thickness architrave is architrave having a front edge thickness measuring, for example, 1/32 inch, ⅛ inch, 3/16 inch, or ¼ inch. Given the construction industry standard one-quarter inch reveal between the front edge of the door jamb and the front edge of the architrave surrounding the door jamb, the front face of the angled bolt does not hit (strike) the front edge of the narrow-thickness architrave.
Fourth, they protect wide-thickness architrave surrounding the door jamb from the abrasive front face of the angled bolt of the door spring-loaded latch bolt mechanism using extended width edge strike latch strikes in instances where it is important to protect individuals from the physical hazard of the protruding lip of lip strike latch strikes.
Fifth, they protect individuals, clothing of individuals, personal property of individuals, and pets. Prior art lip strike latches have a protruding lip extending outwardly by approximately one-half inch beyond the front edge of the door jamb and the architrave. The protruding lip is a physical hazard. The present invention edge strike latch plates have no protruding lip. Thus, the present invention latch strikes protect individuals, clothing of individuals, personal property of individuals, and pets.
Spencer, U.S. Pat. No. 849,895 A, Apr. 9, 1907, shows a door jamb latch plate comprising two portions, a portion having a latch bolt receiving opening and a right-angle mounting portion having apertures to affix the mounting portion to the front face of door jamb architrave. Spencer's invention distinguishes from prior art to show a right-angle latch plate simultaneously covering a door jamb and door jamb architrave. Spencer fails to include in the description and fails to include in any claims of the invention to mention the latch plate only covering the door jamb.
Upton, U.S. Pat. No. 987,271, Mar. 21, 1911, shows a door jamb latch plate wherein the front edge of the latch plate wrapping around the front edge of a door jamb in FIG. 2 and FIG. 3. Upton's invention distinguishes from prior art to show a metal clip covering a spring-loaded latch bolt to enable an individual to close a door and open a door without turning the door handle. Upton fails to include in the description and fails to include in any four claims of the invention to mention physical features of the latch plate.
Flora, U.S. Pat. No. 2,094,119 A, Sep. 28, 1937, shows an adjustable door jamb latch plate having a combination of two interlocking latch plates to horizontally and vertically reposition a latch plate to coordinate with a door spring-loaded latch bolt and the two interlocking latch plates having a small adjoining flat lip extending to approximately the front edge of a door jamb. Flora's invention distinguishes from prior art to show a latch plate wherein an inner plate and an outer plate having horizontal and vertical teeth and the adjustment of the latch bolt receiving openings are independent of the surrounding latch plate. Flora fails to include in the description and fails to include in any seven claims of the invention to mention a latch plate that has the basic features of a latch plate.
Flora, U.S. Pat. No. 2,153,080 A, Apr. 4, 1939, shows an adjustable door jamb latch plate having a combination of two interlocking latch plates to horizontally and vertically reposition a latch plate to coordinate with a door-spring loaded latch bolt and the two interlocking latch plates having a large adjoining flat lip extending to approximately the front edge of a door jamb. Flora's invention distinguishes from prior art to show a latch plate wherein an inner plate and an outer plate having horizontal and vertical teeth and the adjustment of the latch bolt receiving openings are independent of the surrounding latch plate and further the invention having a dust box. Flora fails to include in the description and fails to include in any four claims of the invention to mention a latch plate having the basic features of a latch plate.
Model, U.S. Pat. No. 2,231,414 A, Feb. 11, 1941, shows an adjustable door jamb latch plate having a combination of two members wherein one member is an adjustable tab. Model distinguishes from prior art to show a cam wheel to reposition an adjustable tab. Model fails to include in the description and fails to include in any of three claims of the invention to mention a latch plate having the basic features of a latch plate.
Beckman, U.S. Pat. No. 2,446,206 A, Aug. 3, 1948, shows a door jamb latch plate comprising a front tab, a rear tab, and a wear plate between the front edge of the latch plate and the front edge of a door jamb. Beckman's invention distinguishes from prior art to show a latch plate having inside of a latch bolt receiving opening both a front tab and a rear tab. Beckman fails to include in any of claims of the invention to mention the physical features of the latch plate, except the front tab and the rear tab.
Miller, U.S. Pat. No. 2,535,444 A, Dec. 26, 1950, shows an adjustable door jamb latch plate having two members, a latch plate and an anti-rattle clip to coordinate with a door spring-loaded latch bolt. Miller's invention distinguishes from prior art to show an anti-rattle clip attached to a latch plate. Miller fails to include in the description and fails to include in any of three claims of the invention to mention the physical features of the latch plate, except the anti-rattle clip.
Gravino, U.S. Pat. No. 2,787,490 A, Apr. 2, 1957, shows an adjustable door jamb latch plate having a combination of two members wherein the inner plate having a repositioning latch bolt receiving opening and the outer plate having an elongated T-strike shape and the front edge of the outer plate extending to the front edge of a door jamb. FIG. 1 and FIG. 2 show an outer plate having an elongated T-strike shape and the front edge of the outer plate extending to the front edge of a door jamb. Gravino fails to include in the description and fails to include in any claims of the invention to mention the physical features of the outer plate, except the outer plate having a T-shape and secured within the typical recessed portion of a door jamb.
Komatsu, JP 1408296353 A, Apr. 26, 1995, shows a door jamb latch plate that makes an attempt to minimize injury to an individual, makes an attempt to minimize damage to clothing of an individual, and makes an attempt to minimize damage to personal property of an individual. Komatsu shows a door jamb latch plate comprising a flat portion and a curvature portion wherein the flat portion having etched concave grooves to make the flat portion easily malleable to move the front edge of the curvature portion close to the contour of a door frame architrave. Komatsu suggests an individual use a hammer to bend the flat portion. The front edge of the curvature portion of the door jamb latch plate may cause injury to an individual, may cause damage to the clothing of an individual, and may cause damage to the personal property of an individual because an open area may exist between the front edge of the curvature portion and the contour of the door frame architrave. Komatsu fails to include in the description and fails to include in any six claims a latch plate having a front edge extending to the front edge of a door jamb.
Roth, U.S. Pat. No. 5,757,269 A, May 26, 1998, shows a door jamb latch plate wherein the curvature lip of the latch plate extending to the front edge of a door jamb. Roth's invention distinguishes from prior art to show an electronic detection system to monitor the opening and closing of a door. Roth fails to include in the description and fails to include in any five claims to mention a latch plate having the basic features of a latch plate.
Matsuno, JP 2001329723 A, May 22, 2000, shows a combination of three members, a door jamb latch plate and two other members to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt. Matsuno distinguishes from prior art to show a latch bolt receiving opening repositioning independently of the latch plate. Matsuno fails to include in the description and fails to include in any three claims to mention a latch plate having a front edge extending to the front edge of a door jamb.
Wagner et al., US 2004/0164565 A1, Aug. 26, 2004, shows a door jamb latch plate comprising an elongated flat portion and a curvature portion along the front edge of the elongated flat portion to protect from damage the front edge of a door jamb and protect from damage the front edge of door jamb architrave. Wagner's invention distinguishes from prior art to show an elongated latch plate. Wagner fails to include in the description and fails to include in any fifteen claims to mention a latch plate having a front edge extending to the front edge of a door jamb.
Komiya, JP 2015010398 A, Jun. 28, 2013, shows a combination of five members, a door jamb latch plate and four other members, to horizontally reposition a latch bolt receiving opening to coordinate with a door spring-loaded latch bolt. Komiya's invention distinguishes from prior art to show latch plate having two members repositioning independently of each other to coordinate with a door spring-loaded latch bolt. Komiya fails to include in the description and fails to include in any five claims to mention a latch plate having a front edge extending to the front edge of a door jamb.
Magee, US 2016/0069105 A1, Mar. 10, 2016, shows a door jamb latch plate having two members, a base plate and a latch plate, wherein the front edge of the base plate having an edge on the back of the base plate wrapping around the front edge of a door jamb. Magee's invention distinguishes from prior art to show an elongated base plate on which to affix a latch plate. Magee fails to include in the description and fails to include in any fourteen claims to mention a latch plate having a front edge extending to the front edge of a door jamb.
Fenwick, U.S. Pat. No. 9,822,550 B2, Nov. 21, 2017, shows a door jamb latch plate that makes an attempt to minimize injury to an individual, makes an attempt to minimize damage to clothing of an individual, and makes an attempt to minimize damage to personal property of an individual. Fenwick shows a door jamb latch strike comprising two members, a base member constructed of metal and a curvature member constructed of flexible material. Fenwick shows a door jamb latch plate having both the curvature member and the front edge of the curvature member extending beyond both the front edge of a door jamb and the front edge of a door jamb architrave. The flexible material of the curvature portion may prevent cuts to an individual and may prevent gouges to the personal property of an individual. However, the exposed curvature portion of the flexible material may cause bruises or sprains to an individual, may cause stretches and tears to clothing of an individual, and may cause scuff marks to personal property of an individual. And further, Fenwick fails to include in the description and fails to include in any fifteen claims to mention a latch plate having a front edge extending to the front edge of a door jamb.
Moon, WO 2019/199066 A1, Oct. 17, 2019, shows a door jamb latch plate that makes an attempt to minimize injury to an individual and makes an attempt to minimize damage to clothing of an individual. Moon shows a door jamb latch plate comprising three members, a latch plate and two other members, wherein the latch plate having a front edge extending to approximately the front edge of a door frame. Moon shows a latch plate wherein the front edge of the latch plate extending to the front edge of a door frame and the front edge of the latch plate having three front edges: a front flat upper edge, a front flat lower edge, and a front curvature middle edge. Moon shows a door jamb latch plate to protect individuals and to protect the clothing of individuals. However, Moon shows a door jamb latch plate that is complex to manufacture and is complex to install. Further, the front edge of the latch plate may cause injury to an individual and may cause damage to clothing of an individual at the two intersections between the two front flat edges and the front curvature edge. Moon fails to include in the description and fails to include in any three claims to mention a single member latch plate having the basic features of a latch plate.
Goldense, US 2020/0011126 A1, Jan. 9, 2020, shows a door jamb latch plate wherein the wide front edge of the latch plate wrapping around the front edge of a door jamb. FIGS. 1, 2, 3, 4, 18, 23, and 24 show the front edge of the latch plate wrapping around the front edge of a door jamb. Goldense distinguishes from prior art to show a latch plate having non-flammable features. Goldense fails to include in the description and fails to include in any twenty-six claims to mention physical features of the latch plate, except the non-flammable features of the latch plate.
Therefore, a need exists for the present invention that protects an individual from injury, protects the clothing of an individual from damage, protects the personal property of an individual from damage, protects pets from injury, is simple and inexpensive to manufacture, and is simple and inexpensive to install.
One embodiment of the present invention is an edge strike latch plate comprising a single member flat base plate having an opening for receiving the angled bolt of a door spring-loaded latch bolt mechanism, apertures for securing the base plate to the door jamb using screws, a retraction means for retracting the angled bolt of a door spring-loaded latch bolt mechanism, and the retraction means proximating the front edge of the door jamb.
Another embodiment of the present invention is an edge strike latch plate comprising a single member flat base plate having an opening for receiving the angled bolt of a door spring-loaded latch bolt mechanism, apertures for securing the base plate to the door jamb using screws, an optional adjustable tab for firmly shutting the door against the door stop of the door frame to eliminate door rattle, a retraction means for retracting the angled bolt of a door spring-loaded latch bolt mechanism, and the retraction means proximating the front edge of the door jamb.
An additional embodiment of the present invention is a T-strike edge strike latch plate comprising a single member flat base plate having an opening for receiving the angled bolt a door spring-loaded latch bolt mechanism, apertures for securing the base plate to the door jamb using screws, a retraction means for retracting the angled bolt of a door spring-loaded latch bolt mechanism, and the retraction means proximating the front edge of the doorjamb.
And a further embodiment of the present invention is a T-strike edge strike latch strike comprising a single member flat base plate having an opening for receiving the angled bolt of a door spring-loaded latch bolt mechanism, apertures for securing the base plate to the door jamb using screws, an optional adjustable tab for firmly shutting the door against the door stop of the door frame to eliminate door rattle, a retraction means for retracting the angled bolt of a door spring-loaded latch bolt mechanism, and the retraction means proximating the front edge of the door jamb.
The present invention edge strike latch plate may be constructed of stamped metal or plastic, or thick metal or thick plastic for additional strength. Further, the present invention may have a protective veneer coating, a plastic piece, or a plastic covering to protect the latch plate from wear and tear caused by the abrasive front face of the angled bolt of the door spring-loaded latch bolt mechanism. The stamped metal or plastic, protective veneer coating, plastic piece, and plastic covering are in prior art latch plates.
The retraction means of the edge strike latch plate or the retraction means of the T-strike edge strike latch plate is the leading edge of the edge strike latch plate selected from the group consisting of a flat edge, a beveled edge, a rounded edge, and a flange. The purpose of the flange is to hide from view the imperfect chiseled gouges of the mortise in which the base plate of the edge strike latch plate is inset flush with the door jamb. The imperfect chiseled gouges are made by a finish carpenter, a factory machine, or an unskilled individual.
Edge strike latch plates can be constructed from conventional lip strike latch plates, e.g., full lip latch plates and a T-strike lip latch plates. The lip strike latch plates are modified such that the angled bolt of the door spring-loaded latch bolt mechanism hits (strikes) the leading edge of the modified lip strike latch strikes. For full-lip lip strike latch plates, the protruding lip is replaced with a flat edge, a beveled edge, a rounded edge, or a flange. For T-strike lip strike latch plates, the protruding lip is replaced with a flat edge, a beveled edge, a rounded edge, or a flange. The protruding lip portion is any portion of the lip strike latch plates that extends beyond the front edge of the door jamb.
The retraction means may be referred to as the retraction means for retracting the angled bolt of the door spring-loaded latch bolt mechanism or the front edge striker for retracting the angled bolt of the door spring-loaded latch bolt mechanism.
The above and other objects, features and advantages of the present invention edge strike latch plate should become even more readily apparent to those skilled in the art upon a reading of the following detailed description in conjunction with the drawings wherein there is shown and described illustrative embodiments of the invention.
One of the advantages of the present invention edge strike latch plates over prior art lip strike latch plates is protecting individuals, clothing of individuals, personal property of individuals, and pets from the physical hazard of the protruding lip of prior art lip strike latch plates. The present invention latch plates, not having a protruding lip, protects an individual's fingers, hands, arms, waist, and legs from scratches and cuts; protects an individual's long-sleeve shirt cuffs, long-sleeve shirt sleeves, pants waistbands, pants pockets, and pants legs from rips and tears; protects an individual's personal property including furniture from dents and gouges; and protects an individual's pets from scratches and cuts.
Another advantage of present invention edge strike latch plates is they work just as well as prior art lip strike latch plates with the retraction of the angled bolt of the door spring-loaded latch bolt mechanism. Door hardware companies state that latch plates need a protruding lip in order to function properly with door spring-loaded latch bolt mechanisms, thereby successfully retracting the angled bolt of the door spring-loaded latch bolt mechanism. However, the present invention latch plates having no protruding lip, also function properly with door spring-loaded latch bolt mechanisms.
A further advantage of the present invention edge strike latch plates is they work just as well as prior art lip strike latch plates protecting from dents and gouges the front edge of the door jamb. The front edge of the door jamb does not have direct contact with the angled bolt of the door spring-loaded latch bolt mechanism. The leading edge of the edge strike latch plates proximate the front edge of the door jamb, thereby protecting the front edge of the door jamb from direct contact with the angled bolt of the door spring-loaded latch bolt mechanism.
And another advantage of the present invention edge strike latch plates is they work just as well as prior art lip strike latch plates protecting from dents and gouges the front edge of architrave. For narrow-thickness architrave, the front edge of the architrave has no direct contact with the angled bolt of the door spring-loaded latch bolt mechanism. For wide-thickness architrave, installing extended width edge strike latch strikes, the front edge of the architrave has no direct contact with the angled bolt of the door spring-loaded latch bolt mechanism.
Additional advantages of the present invention edge strike latch plates are as follows: they are simple and inexpensive to manufacture, and simple and inexpensive to install. Compared to prior art lip strike latch plates, the present invention uses less raw materials, has fewer manufacturing steps, and is quickly and easily installed with screws provided by the manufacturer.
In the following detailed description, reference will be made to the attached drawings in which:
For purposes of describing the preferred embodiments, the terminology used in reference to the numbered accessories in the drawings is as follows:
The foregoing description and accompanying figures illustrate the principles, preferred embodiments, and modes of operation of the invention. However, the invention should not be construed as being limited to the particular embodiments described above. Additional variations of the embodiments discussed above will be appreciated by those skilled in the art.
Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive. Accordingly, it should be appreciated that variations of those embodiments can be made by those skilled in the art without departing from the scope of the invention as defined by the following claims.
