Door mat alarm

• US 4,924,214 A
• Filed: 04/17/1989
• Issued: 05/08/1990
• Est. Priority Date: 04/17/1989
• Status: Expired due to Fees

• Current Assignee: Lennard C. Hill
• Original Assignee: Lennard C. Hill
• Inventors: Hill, Lennard C.
• Primary Examiner(s): Orsino, Joseph A.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/339,228
• Time in Patent Office: 386 Days
• Field of Search: 340/666, 340/539, 200/86.5, 15/215
• US Class Current: 340/666
• CPC Class Codes: G08B 13/10 by pressure on floors, floor coverings, stair treads, counters, or tills
• CPC Class Codes: H01H 2207/048 Inductive or infrared coupling
• CPC Class Codes: H01H 3/141 Cushion or mat switches
• CPC Class Codes: H01H 9/0271 structurally combining a switch and an electronic component for relays H01H50/021

Abstract

A door mat alarm is set forth including a flexible mat and encapsulated pressure switches positioned in a matrix throughout the mat whereupon compression of the flexible mat relays pressure to the switches and activates a remotely positioned transmitter to actuate an alarm. A modification of the instant invention includes a transmitter encapsulated adjacent a forward edge of the mat to relay a signal to a remote receiver portably carried by an individual.

Claims

1. A door mat alarm apparatus for indication of a mat deforming pressure directed onto an upper surface of said mat, said apparatus comprising,

a mat including a forward edge, a rear edge, side edges joining said forward edge and said rear edge, a bottom surface, and said upper surface;

a matrix of pressure responsive switches positioned within said mat for detecting and directing a signal in response to said mat deforming pressure, and a remote receiver for reception of said signal, and

wherein said mat comprises an elongate compressible flexible resilient mat, and wherein said mat deforming pressure is operative to actuate said switches remote from said switches, and

wherein said apparatus further includes a transmitter encapsulated within said mat, and

wherein said transmitter is positioned adjacent a forward edge of said mat, and

wherein said remote receiver is portably transportable by an individual, and

wherein the bottom surface of said mat includes a matrix of orthogonally and downwardly extending friction projections for maintaining said mat in orientation relative to a support surface, and

further including a battery access cover positioned within said bottom surface to provide access to said transmitter and to provide insertion of a battery through said battery access cover to provide power to said transmitter.