Ladder-leveling device

Claim 2

A compensator boot to facilitate the use of a ladder on an angled surface such as a roof, said boot comprising: (A) a vertically elongated block of material having a generally rectangular transverse cross section having major side face dimensions and minor end face dimensions; (B) a vertically extending socket in said block opening in the upper end face of the block, having a generally rectangular transverse cross section with major and minor dimensions respectively paralleling the major and minor dimensions of said block, being sized to allow the lower end of a leg of the ladder to slide into the socket, and having a blind lower end spaced vertically from the lower end face of said block by a distance compensating for the roof angle; and (C) means defining a flat contact surface on said lower end face that extends from end face to end face of said block and is skewed with respect to the vertical axis of the block to match the roof angle.

Claim 3

A boot according to claim 1 wherein: (D) said lower end face of said block is centrally downwardly pointed to form a central apex edge extending from end face to end face of said block and the end face portions on the opposite sides of said central apex edge are each skewed, but in opposite senses, to match the roof angle so that the block will present a flat contact surface complementary to the roof angle irrespective of the sense in which the boot is applied to the leg, irrespective of which leg it is applied to, and irrespective of which side of the roof ridge the ladder is positioned on.

Claim 4

A boot according to claim 2 wherein said block is formed as a monolith.

Claim 5

A boot according to claim 3 wherein said block is formed as a molded plastic article.

Claim 6

A compensator boot to facilitate use of a ladder on an angled surface such as a roof, said boot comprising: (A) a vertically elongated block of monolithic material having a generally rectangular transverse cross section having major and minor dimensions; (B) a vertically extending socket in said block opening in the upper end face of said block and having a blind lower end spaced vertically from the lower end face of said block by a distance compensating for the roof angle; (C) said socket having a generally rectangular transverse cross section sized to allow the lower end of a leg of a ladder to slide into the socket and having major and minor dimensions respectively paralleling the major and minor dimensions of said block; and (D) said lower end face of said block being downwardly centrally pointed to define a central apex edge extending in the direction of the major cross-sectional dimension of the block with the end face portions on opposite sides of said apex edge skewed in opposite senses to match the roof angle so that the block presents a lower end face portion complementary to the roof angle irrespective of the sense in which the boot is applied to the leg of the ladder, irrespective of which leg it is applied to, and irrespective of which side of the roof ridge the ladder is positioned on.

Claim 7

A compensator boot to facilitate use of a ladder on an angled surface such as a roof, said boot comprising: (A) a vertically elongated block of monolithic material having a generally rectangular transverse cross section having major and minor dimensions; (B) a vertically extending socket in said block opening in the upper end face of said block and having a blind lower end spaced vertically from the lower end face of said block by a distance compensating for the roof angle; (C) said socket having a generally rectangular transverse cross section sized to allow the lower end of a leg of a ladder to slide into the socket and having major and minor dimensions respectively paralleling the major and minor dimensions of said block; and (D) said lower end face of said block being downwardly centrally pointed to define a central apex edge extending in the direction of the major cross-sectional dimension of the block with the end face portions on opposite sides of said apex edge skewed in opposite senses to match the roof angle so that the block presents a lower end face portion complementary to the roof angle irrespective of the sense in which the boot is applied to the leg of the ladder, irrespective of which leg it is applied to, and irrespective of which side of the roof ridge the ladder is positioned on.

Claim 8

A boot according to claim 5 wherein said block is formed as a monolith.

Claim 9

A boot according to claim 6 wherein said block is formed as a molded plastic article.

Claim 10

A ladder assembly comprising: (A) a ladder having vertical legs and vertically spaced rungs extending between said legs; and (B) a boot sized to fit over the lower end of one of said legs; (C) said boot comprising a vertically elongated block of material having a generally rectangular transverse cross section having major side face dimensions and minior end face dimensions; (D) said block defining a vertically extending socket opening in the upper end face of the block, having a generally rectangular cross section with major and minor dimensions respectively paralleling the major and minor dimensions of said block, and being sized to allow the lower end of one of said legs to slide into the socket; and (E) said block further including means defining a flat contact surface on said lower end face thereof that extends from end face to end face of said block and is skewed with respect to the vertical axis of said block to match the roof angle.

Claim 11

A ladder assembly comprising: (A) a ladder having vertical legs and vertically spaced rungs extending between said legs; and (B) a boot sized to fit over the lower end of one of said legs; (C) said boot comprising a vertically elongated block of material having a generally rectangular transverse cross section having major side face dimensions and minior end face dimensions; (D) said block defining a vertically extending socket opening in the upper end face of the block, having a generally rectangular cross section with major and minor dimensions respectively paralleling the major and minor dimensions of said block, and being sized to allow the lower end of one of said legs to slide into the socket; and (E) said block further including means defining a flat contact surface on said lower end face thereof that extends from end face to end face of said block and is skewed with respect to the vertical axis of said block to match the roof angle.