Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS2543444 A
Publication typeGrant
Publication dateFeb 27, 1951
Filing dateFeb 20, 1945
Priority dateFeb 20, 1945
Publication numberUS 2543444 A, US 2543444A, US-A-2543444, US2543444 A, US2543444A
InventorsJoseph Dezorze
Original AssigneeJoseph Dezorze
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rigid jaw, enclosed wrench having manually controlled nut ejector
US 2543444 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Feb 27, 1951 J DE 2,543,444




Application February 20, 1945, Serial No. 578,903

The invention relates to a socket tool, and more especially to a wrench expeller socket device.

The primary object of the invention is the provision'of a device of this character, wherein a piece of work firmly socketed within the tool can be expelled therefrom with ease and dispatch, without requiring the operator of the tool hammering or otherwise tapping the said tool for effecting its release from the work, particularly 'in congested places or restricted areas, thereby controlled for releasing the wrench from the work, without inconvenience to a workman or mechanic.

A still further object of the invention is the provision of a device of this character, which is simple in construction, thoroughly reliable and eficient in operation, strong, durable, readily and easily handled, compact, positive in the functioning thereof, and inexpensive to manufacturer and install.

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawing, which discloses the preferred embodiment of the invention, and pointed out in the claims hereunto appended.

In the accompanying drawing:

Figure 1 is vertical longitudinal sectional view through a socket member for a wrench, showing the device constructed in accordance with the invention applied.

Figure 2 is an end View.

Figure 3 is a view similar to Figure 1 but taken at substantially right an les thereto.

Figure 4 is a view similar to Figure 2 looking at the opposite end of the socket member.

Figure 5 is a sectional view taken on the line 5-5 of Figure 1 looking in the direction of the arrowsv Figure 6 is a perspective view of the trigger.

Figure 7 is a perspective view of the expeller plunger.

Similar reference character indicate corresponding parts throughout the several views in the drawing,

Referring to the drawing in detail, A designates generally a socket member for a wrench, and is in the form of a cylindrical body IQ, of the usual well-known construction, having in one end thereof a substantially squared fiat-faced socket 2 for the interfitting with this body of a turning handle not shown, which is of any conventional type. The other end of the body I!) has in this instance the hexagonal shaped socket II for accommodating a nut or other piece of work not shown to be operated on in the use of the wrench in the ordinary manner.

The sockets i I and I2 are separated from each other by a dividing wall integral with the body I0, and centrally of this wall is formed a stepped bore, its larger diameter I3 opening into the socket II, while the smaller diameter I4 opens into the socket I2, respectively. Slidably fitting the bore is the stem I5 of an expeller plunger having the expeller head I6 operating within the socket I I and is of a size to clear the walls of the said socket in the operation of the plunger.

The end of the stem I5 remote from the head I6 fits the smaller portion of the here, while the remaining portion of the stems fits the larger portion I3 of the said bore, the stepping of latter creates a shoulder II therein against which contacts a coiled expansion spring I8, while the shaping of the stem to this bore creates a shoulder I9 for this spring so that the latter will force the head it outwardly of the socket I2 to expel a nut or piece 'of work engaged therein, when the plunger is released for this purpose.

Slidably fitted within a suitable clearance in the body It is a pin trigger at, which extends transversely through an elongated slot 2! formed longitudinally in the plunger, and this trigger 2B is provided with latching nibs 22 for engaging in keeper notches 23 in the plunger stem I5 to maintain the eXpeller head I6 retrieved within the socket I2 and against expelling action. The trigger 28 is provided with a push button terminal 24, which is accessible for finger operation, exteriorly of the body Ill. The trigger 20 is tensioned by a spring 25 confined within the clearance therefor by a plug 26, which is removable.

Should the piece of work engaged in the socket I2 resist release therefrom, a punch can be used to tap the smaller end of the plunger for disengagement of the work from such socket. Ordinarily, the trigger 2!) is operated to free the 3 plun er so that its head 16 will expel the work from the socket l2 in the body 10 of the member A.

What is claimed is:

In a wrench expeller socket having a cylindrical body provided with a work gripping end having formed therein a hexagonal shaped socket, a dividing wall in the body inwardly of said socket having a bore therein and an expeller head in the socket having a stem thereon receivable in the bore and a coiled spring on the stem within the bore to urge the head outwardly of the socket, and said stem having an elongated slot therein, the improvement comprising, a locking means for said stem including, a pin mounted transversely of the body within the slot in the stem, latching nibs on said pin and keeper notches in the body communicating with the slot and adapted to be engaged by the nibs on the pin to hold the expeller head retracted, a push button terminal on said pin accessible for manual operation of the pin exteriorly of the body to release said expeller head and a spring carried by the body and engageable with the pin to urge the nibs on the pin into engagement with the keeper notches.


REFERENCES CITED The following references are of record in the file of this patent:


Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US914065 *Oct 6, 1908Mar 2, 1909Stewart J NewhartSash-lock.
US1198509 *May 29, 1916Sep 19, 1916John A AndersonFastening device.
US1281928 *Jan 31, 1918Oct 15, 1918William A FifieldSocket-wrench.
US1474236 *Jun 15, 1922Nov 13, 1923Philip Byrne ChesterWrench
US1509680 *Feb 1, 1924Sep 23, 1924William D SmileyWrench
US1530138 *Dec 13, 1922Mar 17, 1925William RushCombination tool
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3114278 *Jan 8, 1962Dec 17, 1963Thomas Dalton ASocket wrench
US5437211 *Mar 3, 1994Aug 1, 1995Innovative Achievements, Inc.Apparatus for ejecting nuts from sockets and a method of installation in a socket
US5992272 *Nov 12, 1997Nov 30, 1999Fortner; Douglas K.Knock-out socket
US9551545 *Aug 21, 2014Jan 24, 2017Jeffrey J. RowePivot axis pin fixtures for rifle receivers
U.S. Classification81/124.1
International ClassificationB25B23/00
Cooperative ClassificationB25B23/0057
European ClassificationB25B23/00C