DAVID ALLAN EBERT
Engineers in Collegeville, PA

License number
Pennsylvania PE044626E
Category
Engineers
Type
Professional Engineer
Address
Address
Collegeville, PA 19473

Professional information

David Ebert Photo 1

Door Lever Construction With Fragile Handle

US Patent:
2005008, Apr 21, 2005
Filed:
Oct 20, 2003
Appl. No.:
10/689230
Inventors:
David Ebert - Schwenksville PA, US
International Classification:
E05B001/00
US Classification:
292347000
Abstract:
A unique lever for being turned to actuate a door latch includes a shank mounted to the door. A handle, which is preferably crystal, is attached to an opposed end of the shank. A bolt extends through a bore in the handle and is secured to the shank, and at a remote end, to an end cap. The handle has a portion extending into a shallow pocket in both the shank and the end cap. The overall arrangement provides adequate support and a good force transmission surface from the handle to the shank such that the handle is unlikely to shatter.


David Ebert Photo 2

Spindle Assembly With Captive Spring For Use In A Door Handle Assembly

US Patent:
7523971, Apr 28, 2009
Filed:
Jun 10, 2005
Appl. No.:
11/149745
Inventors:
David Allan Ebert - Schwenksville PA, US
Assignee:
Newfrey, LLC - Newark DE
International Classification:
E05B 3/00, E05B 1/00
US Classification:
292358, 292347, 292359, 70224
Abstract:
A door handle assembly includes a spindle assembly having a first spindle and a second spindle. The first spindle has a shaft portion located between a first head portion and a first coupling end. The shaft portion has a first hub drive portion configured to engage a first hub portion of a split hub when inserted into the split hub in a first direction. The second spindle has a second head portion, a second hub drive portion and a second coupling end. The second coupling end is configured to slidably engage the first coupling end of the first spindle. The second hub drive portion is configured to engage a second hub portion of the split hub when inserted into the split hub in the first direction. A retainer device is attached to the shaft portion of the first spindle. A spring is captively positioned between the first head portion of the first spindle and the retainer device.


David Ebert Photo 3

Reinforcing Bracket For Locks

US Patent:
2003004, Mar 6, 2003
Filed:
Aug 30, 2002
Appl. No.:
10/231695
Inventors:
Eric Britz - Wernersville PA, US
David Ebert - Schwenksville PA, US
International Classification:
E05B009/08, E05B015/16
US Classification:
070/134000, 070/370000, 070/417000
Abstract:
A reinforcing bracket for a door lock. The reinforcing bracket has a recess in its interior side adapted to receive, at least partially surround, and support the bolt body of the bolt assembly of the lock. The reinforcing bracket also has a central opening extending therethrough to receive the cylinder plug cap of the cylinder assembly of the lock.


David Ebert Photo 4

Door Handle Assembly Including Auxiliary Bearing And Auxiliary Bearing Support For A Door Handle

US Patent:
2008008, Apr 10, 2008
Filed:
Dec 4, 2007
Appl. No.:
11/949966
Inventors:
Philip Ellis - Sinking Spring PA, US
David Ebert - Schwenksville PA, US
International Classification:
E05B 3/00
US Classification:
292336300
Abstract:
A door handle assembly includes a door handle having an operator portion, and a shank extending from the operator portion. A mounting plate has a first bearing, the first bearing being sized to receive the shank of the door handle. An auxiliary bearing assembly includes an auxiliary bearing support and a second bearing. The auxiliary bearing support is connected to the mounting plate, wherein the second bearing is spaced apart a distance from the first bearing along an axis passing through the first bearing and the second bearing, the second bearing being sized to receive the shank of the door handle.


David Ebert Photo 5

Door Handle Assembly Including Auxiliary Bearing And Auxiliary Bearing Support For A Door Handle

US Patent:
7347462, Mar 25, 2008
Filed:
Apr 5, 2005
Appl. No.:
11/099375
Inventors:
Philip C. Ellis - Sinking Spring PA, US
David Allan Ebert - Schwenksville PA, US
Assignee:
Newfrey, LLC - Newark DE
International Classification:
E05B 3/00, E05B 1/00
US Classification:
292348, 2923363, 292347, 70224
Abstract:
A door handle assembly includes a door handle having an operator portion, and a shank extending from the operator portion. A mounting plate has a first bearing, the first bearing being sized to receive the shank of the door handle. An auxiliary bearing assembly includes an auxiliary bearing support and a second bearing. The auxiliary bearing support is connected to the mounting plate, wherein the second bearing is spaced apart a distance from the first bearing along an axis passing through the first bearing and the second bearing, the second bearing being sized to receive the shank of the door handle.


David Ebert Photo 6

Lever Handle

US Patent:
D496245, Sep 21, 2004
Filed:
Aug 18, 2003
Appl. No.:
29/188385
Inventors:
David A. Ebert - Schwenksville PA
Assignee:
Newfrey LLC - Newark DE
International Classification:
0806
US Classification:
D 8308


David Ebert Photo 7

Light Fixture

US Patent:
D564127, Mar 11, 2008
Filed:
Sep 19, 2006
Appl. No.:
29/249075
Inventors:
Robert P. Pandorf - Yardley PA, US
David A. Ebert - Schwenksville PA, US
Assignee:
Robern, Inc. - Bristol PA
International Classification:
2603
US Classification:
D26118, D26 76