ALEXANDER ALPERT
Sheet Metal in Southborough, MA

License number
Massachusetts 3239
Issued Date
Sep 21, 2010
Expiration Date
Apr 28, 2018
Type
Sheet Metal Master
Address
Address
Southborough, MA 01772

Professional information

Alexander Alpert Photo 1

Multi-Purpose Hammer

US Patent:
6460210, Oct 8, 2002
Filed:
Nov 8, 2000
Appl. No.:
09/708366
Inventors:
Alexander G. Alpert - Southborough MA 01772
International Classification:
B25D 104
US Classification:
7144, 81 20
Abstract:
A hammer includes a body having opposed, non-parallel cutting edges, and a cross bar attached to the body having a substantially flat side arranged relative to the cutting edges to permit left and right handed cutting. The cross bar includes a hammer head defining a central axis positioned off-axis of a central axis of the cross bar. The cross bar has a claw and a pointed end. The hammer includes a handle attached to the body. The handle defines a central axis positioned off-axis of a central axis of the body. The body of the hammer includes a handle stem with splines for receiving the handle and limiting rotation of the handle relative to the body.


Alexander Alpert Photo 2

Fastener Ripper

US Patent:
2006003, Feb 23, 2006
Filed:
Aug 20, 2004
Appl. No.:
10/921816
Inventors:
Alexander Alpert - Southborough MA, US
International Classification:
B26B 3/00
US Classification:
030169000
Abstract:
A fastener ripper includes a handle, a joint assembly, and an elongate blade replaceably coupled to the handle by the joint assembly. The blade is configured to engage and rip a fastener. The joint assembly includes a first mating portion, a second mating portion, and a member securing the mating portions. The first mating portion includes a raised portion of the blade and the second mating portion includes a countersunk portion in the handle configured to engage the raised portion. Alternatively, the first mating portion includes a step in the elongate blade and the second mating portion includes a step in the handle configured to engage the step in the elongate blade. Alternatively, the first mating portion is substantially flat, the second mating portion is substantially flat, and the member securing the mating portions includes a base plate, dowels and screws.