Sargent Manufacturing Company

Donald T Shamp

Darren C Eller

Christopher C Hill

Scott B Lowder

Marcio Stella Mussi

Gregory Oleksik

Thomas Courtemanche

Andrew S Geraci

Daniel J Picard

Bryce A Fleury

A roseless trim for a mortise or tubular lock includes through bolts on a bolt circle of less than one inch (25.4 mm). Spindle hubs with a curved slot allow at least one of the through bolts to pass through the spindle hubs. A tubular lock embodiment uses arms with a cutout. The arms function as through bolts when screws attach the arms to mounting plates on opposite sides of the door. Each handle is attached to a corresponding handle base with a bushing. The handle base and small diameter bolt circle cooperate to provide the appearance that the handle extends directly into the door without a rose, escutcheon or any other attachment structure at the base of the handle.

Roseless trim for architectural hardware

Paddle trim assembly

A mortise latch and exit device includes active and passive mortise latch mechanisms with corresponding concealed vertical rods operated by links mounted within the mortise latch mechanisms. The mortise latch mechanisms latch double doors at a center point between the doors and at top points between each door and the door frame. Lower vertical rods may also be used to latch at bottom points between the doors and the floor. The active and passive mortise latch mechanisms are operated by corresponding push handle mechanisms and rotary handles. The mortise latch mechanisms cooperatively interact so that either door may be opened first, and either door may be closed first, without regard to the position of the other door. The active mortise latch mechanism includes a latch bolt and an activation bolt arranged so that one bolt is retracted when the other is extended, except when the doors are being opened or closed, when both bolts are retracted. The active mortise latch mechanism automatically retracts the latch bolt when the doors are not aligned and automatically extends the latch bolt when the doors are aligned. The passive mortise latch mechanism ejects the latch bolt as needed to allow the passive door to be opened first.

Mortise latch and exit device with concealed vertical rods

Growing community of inventors

Northford, CT, United States of America

Donald T Shamp