Adjustable latch

• US 20060186672A1
• Filed: 12/16/2005
• Published: 08/24/2006
• Est. Priority Date: 12/16/2004
• Status: Active Grant

• Current Assignee: Steven Levine
• Original Assignee: Steven Levine
• Inventors: Levine, Steven
• Granted Patent: US 7,607,701 B2
• Time in Patent Office: Days
• US Class Current: 292/1.500
• CPC Class Codes: E05B 63/06 with lengthwise-adjustable bolts ; with adjustable backset, i.e. distance from door edge
• CPC Class Codes: Y10S 292/60 Adjustment provisions
• CPC Class Codes: Y10T 292/06 Adjustable backset
• CPC Class Codes: Y10T 292/0969 Spring projected
• CPC Class Codes: Y10T 292/0977 Cam
• CPC Class Codes: Y10T 292/62 Bolt casings

Abstract

The present invention enables one to adjust the length of a door latch without removing any functionality from other areas of the door latch assembly. The improved door latch assembly includes a strike plate, adjustment head, adjustment stem, resilient member, and housing. The improved door latch utilizes a threaded adjustment head, which is screwed into an adjustment stem. The adjustment stem has a threaded aperture located on the front surface of a circular disc. The circular disc has at least one rib, which fits into the groove of a drum, this configuration prevents rotation of the circular disc when adjustment is necessary. The adjustment member and stem have apertures that allow one to thread the spindle of a door knob through the door latch assembly and to the other door knob.

Claims

1. A door latch, which comprises:

a housing assembly, said housing assembly having an adjustment stem, said adjustment stem being positioned in said housing so that said adjustment stem is adapted to move from a first position to a second position, said adjustment stem having an adjustable head portion, said adjustable head portion having a head that extends from said housing, said adjustable head portion being adapted to rotate so that the distance said head portion extends from housing can vary.

2. The door latch assembly according to claim 1, wherein said adjustable head has an aperture on front surface thereof.

3. The door latch assembly according to claim 1, wherein said head is secured to said adjustment stem by means of a threaded member.

4. The door latch assembly according to claim 2, wherein one of said head or said adjustment stem has a male threaded member that is received by a female threaded member in the other of said head or said adjustment stem

5. A door latch according to claim 2, wherein said adjustment stem comprises:

a generally circular disc having at least one rib located on an outer circumferential surface of said disc.

6. A door latch according to claim 5, wherein a handle disk is mounted adjacent to the stem said handle disk being rotable to move said adjustable stem from a first position to a second position.

7. A door latch according to claim 5, wherein said adjustable stem has one or more limiting members extending therefrom that interacts with said handle disk as said handle disk is turned.

8. A door latch according to claim 5, wherein said housing has at least one groove to receive said rib from said circular disc of said adjustment stem.

9. A door latch according to claim 8, wherein said groove may extend the length of said drum.